udc 624 (083.75) sabs south african bureau of … · conscruction. interpretations of and...
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UDC 624 (083.75)
SOUTH AFRICAN BUREAU OF STANDARDS
STANDARDIZED SPECIFICATION
f o r
C I V I L ENGINEERING CONSTRUCTION
SABS 1200 NB-1981
Approved by t h e COUNCIL OF THE SOUTH AFRICAN BUREAU OF STANDARDS on 4 November 1951
NB : RAILWAY SIDINGS (TRACKWORK)
O b t a i n a b l e from the S A BUREAU OF STANDARDS P r i v a t e Rag X191 P r e t o r i a 0001 Repub l i c oE South A f r i c a
Telegrams : Comparator, P r e t o r i a P u b l i s h e d and p r i n t e d i n the Repub l i c of South A f r i c a by the
South A f r i c a n Bureau oE S t a n d a r d s
ISBN 0-626-06060-5 Gr 8
5 SABS 1200 NB-1981 Railway s i d i n g s (trackwork)
sourii AFRICAN BUREAU OF STANDARDS
STANDARDIZED SPI.:CIFICATION
f o r
1. 1.1
2.. 2.1
2.2
2.3
C I V I L ENGINEERING CONSTRUCTION
NB : RAILWAY SIDINGS (TRACKWORK)
T h i s s p e c i f i c a t i o n covers the c o n s t r u c t i o n of ra i lway p r i v a t e s i d i n g s i n c l u d i n g crackwork. crack renewal , r e r a l l i n g , r e s l e e p e r i n g . r e l a y i n g of cracks. and the upgrading and maintenance of ra i lway p r i v a t e s i d i n g s (with t h e use, i n each case. of new o r second-hand material), a l l i n accordance wi th the requirements of the p r i v a t e s i d i n g s publ ica t ion1) of the SAR. The s p e c i f i c a t i o n covers c o ~ t r u c t i o n from t h e end of the cake-off tu rnout where t h i s has been Strpplied and i n s t a l l e d by t h e SAR i n crack owned by the SAR. o r from t h e beginning of the take-off tu rnout where t h i s is CO be i n s t a l l e d i n crack owned by a p a r t y o t h e r than the SAR. The s p e c i f i c a t i o n also covers requirements f o r o t h e r works involv ing running ra i l s such as c r a n e c racks , rai ls i n quay walls, s l ipways, etc.
NOTE:
INTERPRETATIONS SUPPORTING SPECIFICATIONS. Where t h i s s p e c i f i c a t i o n is requi red f o r a p r o j e c t , the fo l lowing s p e c i f i c a t i o n s s h a l l , i n t e r a l i a , form p a r t of t h e c o n t r a c t document: a) P r o j e c t s p e c i f i c a t i o n ; b) SABS 1200 A or SABS 1200 AA, as a p p l i c a b l e ; c) SABS 1200 D o r SABS 1200 DA, as a p p l i c a b l e ; d ) SABS 1200 DN. Where t h e p r o j e c t i n c l u d e s c o n c r e t e work, SABS 1200 G or SARS 1200 CA, as a p p l i c a b l e , s h a l l a l s o form p a r t of the c o n t r a c t document.
APPLICATION. T h i s s p e c i f i c a t i o n c o n t a i n s clauses t h a t are g e n e r a l l y a p p l i c a b l e CO ra i lway s i d i n g conscruc t ion . I n t e r p r e t a t i o n s of and v a r i a t i o n s t o the s p e c i f i c a t i o n are s e t out i n P o r t i o n 2 of the p r o j e c t s p e c i f i c a t i o n . which precedes this s p e c i f i c a t i o n i n a c o n t r a c t document.
DEFINITIONS. s p e c i f i c a t i o n s l i s t e d i n 2.1 and che fo l lowing d e f i n i t i o n s s h a l l apply: Applicant . The p r o s p e c t i v e owner of a p r i v a t e s i d i n g . B a l l a s t t r a i n . A t r a i n with t rucks f o r loading or unloading i n s e c t i o n , b a l l a s t , permanent way m a t e r i a l , o r o t h e r m a t e r i a l requi red f o r c a r r y i n g out t h e c o n t r a c t . Bal lasc ing . Beginning of a turnout . The s t o c k ra i l j o i n t . Descressing. brought w i t h i n a c c e p t a b l e l i m i t s . Diamond cross ing . d i v e r t e d from one t r a c k to another . Gauge. The s h o r t e s t d i s t a n c e between t h e running edges of t h e two rails of a crack. m a t i n g j o i n t (Block j o i n t ) . each o t h e r . Long welded ra i l s (LWR). Rails chac have been welded i n c o l e n g t h s longer than 36 m, and chac may be welded subsequent ly i n the t r a c k inco cont inuous l e n g t h s without f i s h p l a t e d j o i n t s . Mach h e
The s t a n d a r d s r e f e r r e d t o i n t h e s p e c i f i c a t i o n are l i s t e d i n Appendix A.
For the purposes of t h i s s p e c i f i c a t i o n che d e f i n i t i o n s g iven i n the a p p l i c a b l e OE che
The o p e r a t i o n of supply ing b a l l a s t and of p l a c i n g i c CO suppor t and complete a t rack.
The procedure whereby temperacure stresses i n long welded and cont inuous rails are
An arrangement of c r o s s i n g s thac e n a b l e s a t r a i n CO cross a crack wi thout being
A ra i l j o i n t where the a d j a c e n t ra i l s are e l e c t r i c a l l y i n s u l a t e d from
Heavy-weight machine. A machine t h a t may be used on a t r a c k under occupat ion o n l y , and t h a t r e q u i r e s t h e u s e of mechanical means f o r of f - t racking . Light -weight machine. A machine t h a t may b e used on a t r a c k n o t n e c e s s a r i l y under occupat ion and t h a t can be removed e x p e d i t i o u s l y by o p e r a t o r s wi thout t h e use o f mechanical means or s p e c i a l a s s i s t a n c e
Occupation. A r i g h t gran ted by che owner f o r work to be c a r r i e d o u t on an open l i n e o r a s e r v i c e l i n e under s p e c i f i e d c o n d i t i o n s inc luding s p e c i f i e d times. Open l i n e . A running l i n e of any l e n g t h o u t s i d e s t a t i o n yard l i m i t s or , i n the case of a s i d i n g ex tens ion . t h e s e r v i c e l i n e ( o r running l i n e of any l e n g t h ) beyond the s i g n a l l i n g l i m i t s . permanent way. The rails. s l e e p e r s . fascenings ,and b a l l a s t l a i d and f i x e d i n proper p o s i t i o n f o r the passage of t r a i n s . Permanent way material (PWM). The ra i l s , s l e e p e r s , fascenings , and o t h e r material except b a l l a s t . used i n a crack. P r i v a c e s i d i n g . A l e n g t h of ra i lway crack owned by a person o r an o r g a n i z a t i o n o t h e r than the SAR t h a t is connected to an SAR crack. Recamp. Any camping c y c l e requi red a f t e r t h e work has heen taken over . Running l i n e . A l i n e t h a t i s requi red fo r t h e purpose of running t r a i n s from one poin t CO another . and where t h e poin t to poin t d i s t a n c e is more than 1 kin. S e r v i c e l i n e . The p o r t i o n of a p r i v a t e s i d i n g chac l i es between t h e SAR crack and the beginning of the exchange yard o r f i r s t shunt ing l i n e o r s t a g i n g l i n e of a p r i v a t e s i d i n g . Shuncing l i n e s . Lines chat are provided f o r the shuncing of t r a i n s and on which f r e q u e n t s t o p s w i l l be made. (Such l i n e s are shunt ing l e g s to yards; a l l l i n e s w i t h i n i n d u s t r i a l townships; f a c t o r y , mine, and o t h e r l a y o u t s from which s h o r t s p u r s o r i n d i v i d u a l s i d i n g s cake o f f ; yards . )
and t h e g a t h e r i n g roads of
1) The provis ion and c o n s t r u c t i o n of p r i v a t e s i d i n g s , publ ished by t h e O f f i c e of the Chief C i v i l Engineer . SAR, Johannesburg.
SABS 1200 NB-1981 Railway s i d i n g s ( t rackwork)
1
6
2 3 4 5
2.4
3. 3.1
3.2 3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6 3.2.6.1
3.2.6.2
3.2.6.3
Nominal
kg/m mass of ra i l ,
S i d i t s . SldIrig ex tcns ion . S tag ing lines. l o a d i n g , or u n l o a d h e . (Such l i n e s are: t h e s t a g i n g p o r t i o n s of i n d i v i d u a l s id i t lgs ; t h e l i n e s ahead of, a t , arid j u s t beyond loaditlg p o i n t s i n mines. f a c t o r i e s , etc.; and t h e l o o p s of a l l yards . ) Supere1ev;atlon. The d i f f e r e n c e i n l e v e l between t h e o u t e r and i n n e r ra i ls of a curved t r a c k . Take-of f t u r n o u t . The turnout from which a s i d l n g commences. T r a n s i t i o n curve. a c i r c u l a r curve. Turnout. An arrangement of swi tches and c r o s s i n g s t h a t enahles a t r a i n t o be d i v e r t e d from one t r a c k to a n o t h e r , and i n c l u d e s s i n g l e and double s l i p s . - Vertical curve. A curve connectin(: t w o grades and such as t o g i v e a g r a d u a l change i n v e r t i c a l d i r e c t i o n from one grade t o t h e o t h e r . Work permit . A u t h o r i t y gran ted by t h e SAR f o r work to be done n e a r an open l i n e , loop l i n e . shunt ing l i n e , s t a t i o n yard , or o t h e r SAR t r a c k .
ABBREVIATIONS. of t h e s p e c i f i c a t i o n s l i s t e d i n 2.1 and t h e fo l lowing a b b r e v i a t i o n s s h n l l apply: ACV : Aggregate c r u s h i n g v a l u e BC : Beglnning of curve BC : End of curve LWR : Long welded ra i l P1 : P o i n t of i n t e r s e c t i o n ( ra i lway s i d i n g s ) PWI : Permanent way i n s p e c t o r o f t h e SAR PWM : Permanent way material (see 2.3) SAR : The South A f r i c a n Railways Adminis t ra t ion
MATERIALS GENERAL. used (see 8.1.1).
RAILWAY TKACKWRK General . The PWM suppl ied may. except i n t h e c a s e of wood s l e e p e r s (see 3.2.6.1). be new or second hand and of t h e s i z e ( o r mass), class, or type s p e c i f i e d i n t h e p r o j e c t s p e c i f i c a t i o n o r scheduled. R a i l s . Rails s h a l l b e of Class B or b e t t e r and of s t a n d a r d s e c t i o n . They s h a l l be sound, f r e e from f laws , c r a c k s . s p l i t s , and c o r r o s i o n , and s h a l l have a t least one good running edge. s h a l l be a t least 6 m i n l e n g t h and s h a l l p r e f e r a b l y be 'of nominal l e n g t h 12 m or 18 m. s h a l l be a t least 3 m from f i s h p l a t e d or welded j o i n t s . Where second-hand rails are used a) rail ends s h a l l n o t be b a t t e r e d i n e x c e s s of 2 nim; b) a length of a t least 300 mni s h a l l be cropped t o remove damaged ra i l ends; c) rails s h a l l not have more than t h e maximum wear g iven i n Column 5 of T a b l e 1 a p p r o p r i a t e to t h e mass per metre of t h e rails; and d) rails s h a l l have no h o l e s through t h e web o t h e r than f i s h b o l t h o l e s , and f i s h b o l t h o l e s s h a l l n o t be f lame c u t .
A p o r t i o n oC a p r i v a t e sicling t h a t is on land belonging t o t h e SAR. A p o r t i o n of any p r i v a t e s i d i n g t h a t is on land not belonging t o tile SAR.
Lines provided s p e c i f i c a l l y f o r t h e s t a g i n g of t rucks f o r t h e purposes of s o r t i n g ,
A curve wi th a uniform rate of change of c u r v a t u r e , connec t ing a s t r a i g h t w i t h
For t h e purposes of t h i s s p e c i f i c a t i o n t h e a b b r e v i a t i o n s given i n t h e a p p l i c a b l e
The C o n t r a c t o r s h a l l o b t a i n t h e Engineer ' s approval of a l l m a t e r i a l s b e f o r e they are
Ra i l s Welds
TABLE 1 - MAXIMUM PERMISSIBLE WEAR OF RAILS
Side wear. kglm. max.
Height of ra i l , mm. min.
Class
A B C A l l classes
p 8
156.5 152.7 148.7 7.5 142.6 139.3 136.2 5.2
1.6
121.0 118.2 115,7 3,1 105.2 103.0 100.7 2.3 - - -
- J u n c t i o n F i s h p l a t e s . J u n c t i o n f i s h p l a t e s s h a l l have been manufactured in an approved manner. (See also 5.2.6.5.) F i s h b o l t s , Nuts, and Washers. F i s h b o l t s and n u t s s h a l l match t h e type of f i s h p l a t e s suppl ied . Washers s h a l l be of t h e double co i l type. Second-hand f i s h b o l t s and n u t s s h a l l , i n t h e opin ion of t h e Engineer. be sound i n a l l r e s p e c t s , and s h a l l be used only w i t h new s p r i n g washers (of t h e correct s i z e ) . S l e e p e r s and Cross ing Timbers and Bearers Wood s l e e p e r s and c r o s s i n g tirnhers. Wood s l e e p e r s and c r o s s i n g t imbers and b e a r e r s s h a l l be of new aooroved hardwood or a n a m r o v e d tvDe of laminated softwood. i n each case f r e e from splits and .. .. _. o t h e r imperfec t ions such as d r y r o t , knotholes . wormholes. b o r e r damage, and fungal a t t a c k . S t e e l s l e e p e r s . S t e e l s l e e p e r s s h a l l b e to a des ign approved by t h e SAR. They s h a l l be s u p p l i e d w i t h r a i l - t o - s l e e p e r f a s t e n i n g s t o s u i t t h e type of s l e e p e r and t h e r a i l s e c t l o n be ing l a i d . Concrete s l e e p e r s . Concrete s l e e p e r s s h a l l be of t h e s i d i n g type with s l e e p e r f a s t e n i n g s , a l l as approved by t h e SAR (see 3.2.8.5).
7 SABS 1200 NB-1951 Railway s i d i n g s (trackwork)
3.2.7
3.2.8 3.2.8.1
3.2.8.2
3.2.8.3
3.2.8.4 3.2.8.5 3.2.9
3.2.10
3.2.11
3.2.12
3.2.13
3.2.14
3.2.15
3.3
3.4
4 . 4.1 4.1.1
4.1.2
4.1.3 4.1.4
F i s h p l a t e s . F i s h p l a t e s s h a l l be suppl ied i n p a i r s and shall be of t h e c o r r e c t des ign f o r t h e type of ra i l being l a i d . F i s h p l a t e s s h a l l be sound i n a l l r e s p e c t s and second-hand f i s h p l a t e s s h a l l be i n such c o n d i t i o n t h a t t h e remaining draw is at least 5 mm when t h e f i s h b o l t s are p u l l e d up t o a t o r q u e or 340 N.m. Ra il-t o-Sleepe r Fas t e n i n g s S o l e p l a t e s s h a l l be of a type t o s u i t t h e ra i l s e c t i o n s s p e c t f i e d . and t h e r a i l s h a l l have an inward cant of 1 i n 20. Second-hand s o l e p l a t e s s h a l l be in sound c o n d i t i o n w i t h no n o t i c e a b l e r i d g e s on t h e r a i l f l a n g e seat. R a i l c h a i r s and check-ra i l c h a i r s s h a l l be s u i t a b l e f o r use w i t h t h e rail s e c t i o n s s p e c i f i e d , and s h a l l be suppl ied complete w i t h ra i l - to -cha i r f a s t e n i n g s . Second-hand r a i l c h a i r s and check-ra i l c h a i r s s h a l l be i n sound c o n d i t i o n . Coach screws € o r hardwood s l e e p e r s s h a l l be of s i z e M22 Type B ga lvanized . provided t h a t Type A s h a l l be used where t h e nominal t h i c k n e s s of t h e base p l a t e is 30 mm. Type U galvanized coach screws s h a l l be used wi th softwood and laminated softwood s l e e p e r s . Fas ten ings used wi th c o n c r e t e s l e e p e r s s h a l l be of a type a c c e p t a b l e to t h e SAR. Turnouts , S l i p s , and Crossings. Turnouts , s l i p s , and c r o s s i n g s s h a l l be s u p p l i e d complete with c r o s s i n g b e a r e r s of steel or wood and t h e a p p r o p r i a t e r a i l - t o - b e a r e r f a s t e n i n g s . The supply of tu rnouts . s l i p s , and c r o s s i n g s s h a l l a l s o i n c l u d e s t o c k s and guards. s t o c k s and swi tches , s o l e p l a t e s , c l o s u r e rails. lead ra i l s , i n t e r n a l f i s h p l a t e s , f i s h b o l t s and n u t s , connec- t i n g rods , p u l l rods. s teel p l a t e f o o t guards. swi tch boxes, and a l l o t h e r f i t t i n g s . f a s t e n i n g s . and accessories and, where a p p l i c a b l e . notched s o l e p l a t e s and gaugepla tes . Stopblocks. Stopblocks, of t h e f i x e d type or s l i d i n g type , s h a l l be c o n s t r u c t e d of Class B o r b e t t e r second-hand r a i l s of t h e same mass p e r metre as that of t h e rails t o which they are connect- ed , and s h a l l i n c l u d e b u f f e r beams, hardwood bumping b locks , running ra i l s and f a s t e n i n g s . a c c e s s o r i e s , and b e a r e r s . Derail Devices. Derail d e v i c e s s h a l l be of t h e type(s ) scheduled o r g iven on t h e drawings. They may c o n s i s t of a s t a n d a r d tlayes type. o r a s t o c k and s w i t c h type compounded wi th t h e t a k e o f f set of p o i n t s , or a s tandard sco tch b lock manufactured from 30 kg/m r a i l or from any s u i t a b l e r o l l e d steel s e c t i o n t h a t 1s not too heavy t o handle . Each s c o t c h block s h a l l be suppl ied wi th the a d d i t i o n a l s l e e p e r s and f a s t e n i n g s r e q u i r e d and f i t t e d w i t h a s t o u t c h a i n and e y e b o l t t o e n s u r e locking i n e i t h e r t h e on o r t h e of f p o s i t i o n . Clearance Markers. Clearance markers s h a l l c o n s i s t of l e n g t h s of r a i l o r o t h e r approved material of nominal l e n g t h 1.7 m. I n s u l a t e d Rail J o i n t s (Block J o l n t s ) and Rai l Bonds. I n s u l a t e d ra i l j o i n t s s h a l l c o n s i s t of laminated wood f i s h p l a t e s . approved i n s u l a t l o n , and i n s u l a t i n g shims of t h i c k n e s s a t least 5 mm between rails. I
R a i l bonds s h a l l c o n s i s t of a) i n t h e case of a s i g n a l bond, a t least two s t r a n d s o f , c o p p e r w i r e of d iameter a t least 4 mm and, b) i n t h e case of a t r a c t i o n bond, bra ided copper wire of c r o s s - s e c t i o n a l area a t least 20 mm*. bonded t o t h e ra i l s i n a n a c c e p t a b l e manner. -- Ballast . similar crushed s t o n e t h a t complies w i t h requirements f o r s ing le-s ized crushed s t o n e f o r roads of nominal s i z e 53.0 mm g iven i n SABS 1083, except t h a t the nominal a p e r t u r e s i z e of t h e l a r g e s t s i e v e used f o r t h e grad ing s h a l l be 63.0 nun ( i n s t e a d of 75.0 mm) and, i n s t e a d of t h e a p p l i c a b l e ACV s p e c i f i e d i n SABS 1083. t h e s t o n e s laal l have a n a b r a s i o n r e s i s t a n c e of 34 as determined by t h e Los Angeles a b r a s i o n test. Samples and a grading a n a l y s i s of s t o n e t h a t t h e C o n t r a c t o r proposes t o u s e as b a l l a s t s h a l l b e submit ted t o t h e Engineer f o r examinat ion and approval . Signboards. Whistle boards , s i d i n g number boards. and o t h e r ra i lway s ignboards requi red s h a l l be of s t a n d a r d SAR p a t t e r n , s h a l l b e pa in ted i n accordance w i t h s t a n d a r d SAK p r a c t i c e , and s h a l l comply wi th t h e r e g u l a t i o n s of the SAR. I n t h e case of l e v e l c r o s s i n g s . road s i g n s s h a l l conform to t h e requtrements of t h e a p p l i c a b l e Road T r a f f i c Ordinance.
STACKING AND HANDLING OF PWM. Mater ia l s h a l l be placed clear of t h e space def ined by t h e f i x e d s t r u c t u r e gauge, and s h a l l be s tacked a t least 3 m from t h e c e n t r e l i n e of any t rack . With t h e except ion of wood s l e e p e r s , PWM s h a l l n o t be s t a c k e d on ash. Rails s h a l l be s tacked on an even bed and so supported as to prevent bending and t w i s t i n g . S t e e l s l e e p e r s s h a l l be s tacked clear of t h e ground wi th a l t e r n a t e l a y e r s a t r i g h t a n g l e s t o each o t h e r , bottoms f a c i n g down. and i n lo t s of n o t more than 100. Wood s l e e p e r s s h a l l be s tacked as shown on Drawing NB-1 i n lo t s of about 50. The ground w i t h i n 6 m of each s t a c k of wood s l e e p e r s s h a l l be c l e a r e d of a l l g r a s s and weeds. Concre te s l e e p e r s s h a l l be s tacked t o a h e i g h t not g r e a t e r than 2.5 m. Bags w i t h rail and s l e e p e r f a s t e n i n g s s h a l l be s tacked clear OC t h e ground. B o l t s and n u t s s h a l t be o i l e d and s tacked under cover to prevent r u s t i n g .
F i s h b o l t h o l e s s h a l l no t be worn o r deformed.
(See 5.2.10.)
Ballast s h a l l c o n s i s t of approved hard broken h o r n f e l s . d o l e r i t e , t i l l i t e . q u a r t z i t e , o r
TRANSPORT. Railway t r u c k s loaded w i t h Pw?l s h a l l be unloaded p laced . The C o n t r a c t o r s h a l l b e a r t h e c o s t of any demurrage negl igence.
PLANT GENERAL A l l tools and equipment f o r t h e handl ing of material and t h e b e provided by t h e Cont rac tor . Power o r hand-operated equipment s h a l l be of a type approved o r o p e r a t i o n being c a r r i e d o u t . The u s e of b a l l a s t i n g machinery w i l l be permi t ted s u b j e c t t o Heavy-weight and l ight-weight machines intended f o r use on a s h u n t i n g s h a l l be s u b j e c t to approval by t h e Engineer .
w i t h i n 36 h of t h e t r u c k s be ing charges d i r e c t l y a t t r i b u t a b l e t o h i s
proper complet ion of t h e work s h a l l
f o r t h e type of f i t t i n g be ing fas tened
t h e p r o v i s i o n s of 4.1.4. t r a c k on which t h e SAR under takes
SABS 1200 xB-1981 Kailway s id ings (trackwork)
8
5. 5. I 5.1.1
5.1.2
5.1.3
5.2 5.2. I
5.2.2
5.2.3
5.2.4 5.2.4.1
5.2.4.2
5.2.4.3
5.2.4.4
5.2.5 5.2.5. I
5.2.5.2
5.2.5.3
CONSTKUCTTON P KECAUT LONS Safe ty . 5.4 of SABS 1200 AA, as appl icable , and i n order t o pro tec t l i f e and proper ty when working o r when handling equipment o r ma te r i a l on o r nea r running l i n e s , the Contractor s h a l l take a l l precaut ions necessary Lo keep personnel, p l an t , and ma te r i a l s ou t s ide the space def ined by the f ixed s t r u c t u r e gauge ( see Drawings NU-2 and NB-3), except t h a t , when work i s being ca r r i ed out under occupation condi t ions ( s e e 2.3). personnel and p l an t may be wi th in the sa id space. When t rucks loaded wi th PWM a r e handled, r a i l t r anspor t e r s , whether moved manually o r mechanically, s h a l l be propelled no t f a s t e r than 6 km/h on s id ings o€ l ength less than 600 m. Clearances. s tock and a11 s t r u c t u r e s and o ther f ixed ob jec t s ad jacent t o the s id ing i n accordance wi th the r e l e v a n t requirenients of 5.2.1 and Drawings NB-2 and NB-3. P r iva t e Siding Agreement. en t e r i n t o a p r i v a t e s id ing agreement with the local System Nanager of t he SAR p r i o r t o the commence- ment of cons t ruc t ion .
METHODS AND PK0CEI)UKES Permanent Way Construct ion Standards. The permanent way s h a l l be constructed i n accordance w i t l i t h e d e t a i l s shown on the s id ing p lan approved i n t e r m s of 5.1.3, o ther app l i cab le requirements of t he spec i f i ca t ion , and the requirements of the SAR. The Contractor s h a l l ensure t h a t he and h i s workmen are f a m i l i a r wi th t h e SAK'S Permanent way ins t ruc - k 2 ) ; Se t t ing Out. I n terms of Subclause 5.1.1 of SABS 1200 A or SABS 1200 AA, a s appl icable , the Engineer w i l l place pegs on the cen t r e l i n e of s t r a i g h t s and a t each PI . BC, and EC, and the Contractor s h a l l be respons ib le f o r the de t a i l ed s e t t i n g ou t of t racks and the provis ion of l if t . pegs. Supervision. permanent way experience and is a qua l i f i ed p l a t e l aye r , and trackwork s h a l l be ca r r i ed out on ly under the personal superv is ion of the supervisor. The Engineer nay s top the work a t any time i f such a superv isor has not been appointed by the Con- t r a c t o r o r is not ava i l ab le on S i t e .
In add i t ion to complying wi th the requirements of Subclause 5.7 of SABS 1200 A o r Subclause
A railway s id ing s h a l l be so constructed as t o a i fo rd s tandard c learance between r o l l i n g
The Employer w i l l ob t a in the SAK's approval of t h e s id ing plan and w i l l
s tandard permanent way drawings; and the SAR's Spec i f i ca t ions E 73) and E 104). --
The Contractor s h a l l appoint a competent and experienced superv isor who has adequate
Laying of S leepers General. s l eepe r s s h a l l be as shown on Drawing NB-4. Welded j o i n t s s h a l l be so located t h a t they do not
S leepers s h a l l be l a i d square t o the rails and proper ly bedded. The nominal spacing of
i n t e r f e r e wi th s leeper spacing. A 1 1 s leeper f i t t i n g s s h a l l be kept c l ean while p l a t e l ay ing is i n progress. Spring c l i p s , where used, s h a l l be f i t t e d i n an approved manner. Coach screw threads s h a l l be dipped i n c reoso te before the coach screws a r e screwed down, and T-bolt th reads s h a l l be su i t ab ly lub r i ca t ed before the b o l t s are tightened. Unless otherwise d i r ec t ed , the torque applied when s l eepe r f a s t en ings a r e t ightened s h a l l be 340 +20 N.m. Wood s leepers . Holes f o r coach screws, of diameter 13 mm f o r softwood and 17 mm f o r hardwood. s h a l l be bored through t h e s l eepe r and square t o the upper su r face of the s leeper . Durable wood Laper plugs o r dowels of length 25 mm s h a l l be in se r t ed and dr iven t o the bottom of the ho le s which s h a l l be f i l l e d with c reoso te before the coach screws a r e screwed home. I f a coach screw is drawn from a s leeper and the hole i s not t o be re-used, the hole s h a l l be plugged a t once wi th a durable wood taper plug dipped i n c reosote o r t a r . S t e e l s leepers . S t e e l s l eepe r s t h a t show s igns of obvious damage s h a l l not be used. C l i p b o l t s s h a l l be lubr ica ted w i t h an approved lub r i can t before they a r e t igh tened , bu t t he c l i p and ra i l f l ange s h a l l be kept f r e e of a l l lubr icant . A l l c l i p b o l t s s h a l l be f i tLed with spr ing washers un less o therwise d i r ec t ed . The s l e e p e r / c l i p combination s h a l l be such t h a t the f in i shed trackwork is l a i d t o the gauge requi red i n terms of 5.2.7. Concrete s leepers . No concre te s leeper s h a l l be used i f i t shows any de fec t o r s i g n of f a i l u r e of t he concrete, o r i f the sea t or shoulder t o rece ive the ra i l o r so l ep la t e i s damaged f o r more than a qua r t e r of i t s length i n any d i r ec t ion . Surfaces of concre te s l eepe r s , so l ep la t e s , and c h a i r s , and the su r faces of r a i l s t h a t bed on rubber pads s h a l l be brushed and cleaned immediately before ra i l laying. Kubber pads s h a l l be thoroughly cleaned and, while t he r a i l is being l a i d , they s h a l l be accu ra t e ly posit ioned. Pads tha t show s igns of d i s t o r t i o n . e i t h e r dur ing o r a i t e r p l a t e l ay ing , s h a l l be removed and r e f i t t e d co r rec t ly . Concrete s l eepe r s t h a t are damaged because the f i t t i n g s were inco r rec t ly assembled o r were not kept c lean , s h a l l be removed from the t r ack and from the S i t e of the Works. S t ra ighten ing and Bending of Ra i l s Before placing r a i l s on s l eepe r s and before bending them Tor use i n a curve, t he Contractor s h a l l remove a l l k inks i n the r a i l s . During each bending opera t ion the r a i l s h a l l be so supported on r o l l e r s t h a t i t i s f r e e t o move. Bending may be done with a j i m crow o r by means of any o the r approved bending machine. R a i l bending s h a l l be ca r r i ed out only when the r a i l temperature is g r e a t e r than 5 OC. A rail of length 18 m o r less t h a t is bent f o r use i n a curve s h a l l be curved over t he f u l l l ength . A ra i l of length g rea t e r than 18 m s h a l l be curved over 6 ni a t both ends f o r a curve of rad ius g r e a t e r than 500 m , and throughout i t s length f o r a curve of rad ius 500 m and less. Subject t o the provisions of 5.2.5.2, curved t r a c k r a i l s s h a l l be uniformlv bent i n accordance wi th t h e standard o f f s e t f o r t he length of ra i l used and the rad ius of t he curve.
Hardwood s l eepe r s s h a l l be l a i d with the hea r t down on the prepared formation. --
--
.................... 2 ) Permanent Way Ins t ruc t ions , published by the Chief C i v i l Engineer, SAR. Johannesburg. 3) E 7 : Spec i f i ca t ion f o r works on, over, under o r ad jacent t o a railway l ine . 4) E 10 : Spec i f i ca t ion f o r p l a t e l ay ing and ba l l a s t ing .
9
1 2 3 4 5
SABS 1200 NB-1931 Railway s i d i n g s (trackwork)
6 7 8 9 10
5.2.6 5.2.6.1
5.2.6.2
5.2.6.3
5.2.6.4
5.2.6.5
5.2.7 5.2.7.1
12 18
Laying of Ra i l s General . Except where t h e Cont rac tor is requi red i n terms of t h e p r o j e c t s p e c i f i c a t i o n and the schedule t o supply and i n s t a l l a take-off tu rnout , rai ls s h a l t be l a i d from t h e end of a take-off tu rnout t h a t has a l r e a d y been i n s t a l l e d (by t h e SAR, i n the case of t r a c k owned by t h e SAR). PhN s u r f a c e s t h a t h e a r on pads s h a l l be brushed c l e a n b e f o r e i n s e r t i o n of t h e pads. Each second-hand r a i l s h a l l be l a i d w i t h t h e b e t t e r running edge on t h e gauge s i d e . Second-hand rails s h a l l be matched f o r he ight . a) t h e use of set-up O K cranked and o f f s e t f i s h p l a t e s , or b) so b u i l d i n g up t h e lower r a i l by welding o r so removing material from the h i g h e r rail by g r i n d i n g t h a t t h e d i f f e r e n c e i n h e i g h t ta i ls o f f a t a rate not exceeding 1 mm p e r 200 mm i n length . Loca t ing of j o i n t s . On curves where s p e c i a l rails are 75 mm s h o r t e r than rails used on s t r a i g h t s . t h e lead a t j o i n t s s h a l l n o t exceed 40 mm and where s p e c i a l rai ls 100 mm s h o r t e r than s t r a i g h t rails are used, t h e lead s h a l l no t exceed 50 mm. Where no s p e c i a l rails are suppl ied . t h e lead of one r a i l on t h e o t h e r on curves s h a l l no t exceed 60 mm. To ensure . when necessary , t h a t t h e lead does n o t exceed 60 mm t h e Cont rac tor s h a l l c u t t h e end of t h e ra i l so t h a t one f i s h b o l t ho le is i n t h e correct p o s i t i o n and s h a l l d r i l l a n a d d i t i o n a l f ishbo 1 t h o l e . Closure r a i l s should be p r e f e r a b l y a t least 6 m long b u t s h a l l , i n any e v e n t , be a t least 3.5 m long, and s h a l l be secured t o at least 5 s l e e p e r s . Expansion gaps. Expansion gaps s h a l l be l e f t a t j o i n t s i n accordance w i t h the temperature o f t h e ra i l and t h e r e l e v a n t requi rements g iven i n Table 2.
TABLE 2 - EXPANSION GAPS FOR DIFFERENT LENGTIIS OF RAIL
Mismatches oE more than 1 mm a t j o i n t s s h a l l be made good by
R a i l s s h a l l b e l a i d w i t h s q u a r e j o i n t s .
36
:ap, mm
8 7 5
3 1 0
9 and 10
In areas of h igh In areas of mod- Gap, mm t empera ture era te temperature
Temp., OC Gap, mm Temp., OC Gap. mm
Temperature. OC
-5 t o 5 12 10 t o 20 15 5 t o 15 15 5 t o 20 9 20 to 30 12 15 t o 20 12
20 t o 30 6 30 t o 35 9 20 t o 25 9
30 t o 45 3 35 to 45 6 25 t o 35 6 45 and h i g h e r 0 45 t o 5 0 3 35 t o 40 3
50 t o 60 0 40 t o 50 0
Temperature , OC
1
Radius, m
Less than 135
-5 t o 10 10 t o 25 25 t o 40
40 t o 50 0 and higher
2 3 4 5
Not check-rai led Check-railed
S p e c i f i e d Maximum S p e c i f i e d Naximum gauge, mm p e r m i s s i b l e gauge, mm p e r m i s s i b l e
gauge, mm gauge, mm
1 085 1 105 1 090 1 105
Gap. mm
7 5 3
1 0
Greater than 200 1 065 1 085 - -
rempera t u r e , OC
-5 t o 10 10 t o 20 20 t o 30
30 t o 40 40 to 50
50 and h ighe
C u t t i n g and d r l l l i n g . of ralls s h a l l n o t be done by means of flaine c u t t e r s o r c o l d sets. and p e r p e n d i c u l a r to t h e long a x i s of t h e rail. remaining f i s h b o l t h o l e i s s e r v i c e a b l e . F i s h b o l t h o l e s s h a l l b e d r i l l e d with t h e use of a n approved rail d r i l l . F i s h b o l t h o l e s s h a l l n o t be flame-cut. The noinlnal diameters of f i s h b o l t h o l e s s h a l l be a) 35 mm f o r 57 kg/m rails , b) 32 mm f o r 48 kg/m rails, and c ) 26 mm f o r 40 kg/m and 30 kg/m rails. A l l b u r r s and rough edges s h a l l be removed a f t e r d r i l l i n g . J o i n t i n E . w i t h t h e n u t s on t h e gauge s i d e of t h e rails. The f i s h i n g s u r f a c e s of f i s h p l a t e s and t h e t h r e a d s of f i s h b o l t s s h a l l be o i l e d or greased immediately b e f o r e t h e j o i n t s are assembled, and t h e f a s t e n i n g s s h a l l be t i g h t e n e d t o a torque of 340 22-20 N.m. Spr ing washers s h a l l b e E i t t e d under a l l nuts . J u n c t i o n f i s h p l a t e s may be used where requi red as a temporary measure d u r i n g r e r a i l i n g o p e r a t i o n s , O K a t s topblocks , or f o r j o i n t s a t t u r n o u t s involv ing d i f f e r e n t ra i l s e c t i o n s . Gauging and Fas ten ing of Rails t o S l e e p e r s Gauging a) Except where o t h e r w i s e s p e c i f i e d (see (b) below), t h e gauee s h a l l be 1 065 mm f o r s t a n d a r d s t r a i g h t t r a c k . On curves t h e gauge s h a l l conform t o the a p p l i c a b l e of t h e va lues g iven i n Table 3.
R a i l s s h a l l be c u t by means of a n approved rail s a w or c u t t i n g d i s c . C u t t t n g The c u t s u r f a c e s h a l l be p l a n a r
I f p o s s i b l e , t h e c u t s h a l l be so l o c a t e d t h a t any
In t h e case of e l e c t r i f i e d l i n e s w i t h bonded rails, f i s h p l a t e d j o i n t s s h a l l be assembled
TABLE 3 - TRACK GAUGES ON CURVES
I 1 080 I 1 100 I 1 085 I 1 105 I Equal t o 135 and up t o 150 I I and up t o 175 I 1 1 095 I - I - I Greater than 150 075
I 1 090 I - l - I Greater than 175 070 and up to 200 I I
SABS 1200 NU-1981 Kailway s id ings ( trackwork)
10
5.2.7.2
5.2.7.3
5.2.7.4
5.2.8 5.2.8. I
5.2.8.2 5.2.8.3 5.2.9
5.2.10
5.2. I 1
5.2.12
5.2. I3
5.2.14
5.2. I5
5.3
b) A t Llie beginning arid end of unLransitioned c i r c u l a r curves the widening of the gauge s h a l l be c a r r i e d out by gradual ly increas ing the gauge on t h e straigliL iit the r a t e of 5 im per 12 m u n t i l the gauge f o r tlie curve i s a t t a ined a t t he beginning of t he c i r c u l a r curve. c ) A t t he beginning and end of t r ans i t i oned c i r c u l a r curves t h e widening of the gauge shall be c a r r i e d ou t by gradual ly increas ing the gauge on the t r a n s i t i o n curve from a poin t 6 m in s ide the beginning of tlie t r a n s i t i o n curve t o a po in t 6 m s h o r t of t he beginning of the c i r c u l a r curve. The increase i n the gauge s h a l l be a t the r a t e of 5 mm per quar te r of t he length of the t r a n s i t i o n curve. Fastening t o wood s leepers . Where s o l e p l a t e s a r e used on wood s l eepe r s , coach screws s h a l l be screwed liome t i g h t l y w i t h a box spanner u n t i l t he f u l l width of the over lap f i rmly g r i p s the f lange of t hc r a i l (see a l s o 5.2.4). For 22 mm diameter coach screws, the diameter of ho les i n wood sleepers s h a l l be 17 mm. The threads of each coach screw s h a l l be dipped i n c reosote (see 5.2.4.1) before the coach screw is inse r t ed i n a s l eene r . Coach screws s h a l l no t be hammered in. Fastening t o s t e e l s leepers . f a s t en ing t h a t the f in i shed t r ack has the spec i f i ed gauge.
Gauge c l i p s and b o l t s f o r s t e e l s l eepe r s s h a l l be so combined dur ing - - -
Fastening t o concre te s leepers . of t he recommended and approved p u l l e r o r l eve r , as appl icable . A hammer s h a l l not be used t o d r i v e c l i p s t h a t a r e not designed to be driven.
Clips f o r concre te s l eepe r s s h a l l be appl ied o r removed only by means
Superelevation Subiect t o the orovis ions of 5.2.8.2. curves s h a l l be nrovided with the r e l evan t sunere leva t ion Riven ., ~~ - - _ _ I
on t h e drawings o r spec i f i ed i n the p ro jec t s p e c i f i c a t i o n and f o r t h e opera t ing condi t ions g iven i n the p ro jec t spec i l i ca t ion . Superelevation of curves i n yard t r acks s h a l l no t exceed 10 mn. The r a t e of change of supere leva t ion s h a l l be uniiorm and s h a l l no t exceed I i n 500. L i f t i n g , Tamping, and Boxing In. Ba l l a s t s h a l l be spread a t the rate s t a t e d i n the p ro jec t spec i - f i c a t i o n o r given on the drawings o r scheduled. AfLer p la te lay ing , t he t r ack s h a l l be l i f t e d uniformly and evenly, both r a i l s toge ther , ca re being taken t o eiisure t h a t the top of the t r a c k is kept i n l i n e . he ight by successive l i f t s . each not exceeding 100 mm. S leepcrs s h a l l be f i rmly tamped underneath the ra i ls but only l i g h t l y tamped a t t he cen t r e . s l eepe r s h a l l be tamped to the same degree of firmness. J o i n t s l eepe r s s h a l l be tamped l a s t . Af te r tamping, b a l l a s t s h a l l be made up and boxed i n t o l i n e i n a neat and workmanlike manner. The f in i shed b a l l a s t s h a l l have a top width of 2,4 m and a s lope of l:l,5 on the shoulders. The top of t he b a l l a s t s h a l l be l eve l with the t o p s of the s l eepe r s except t h a t , i n the case of concre te s l e e p e r s , i t s h a l l be l eve l wi th t h e tops of t h e cen t r e por t ions of t h e s leepers . On completion, t h e t r a c k s h a l l be t r u e t o l i n e , curvature, and grade, and the whole of' che work s h a l l p resent a nea t and workmanlike appearance. Turnouts, S l i p s , and C r o s . . c ross ing bearers , standard switch boxes by t h e SAK (see SAK Spec i f i ca t ion E 104j). Working p a r t s s h a l l s l i d e f r e e l y on t he s l i d e cha i r s . Switches s h a l l f i t the s tock r a i l c lo se ly and accura te ly wi th a f u l l bear ing aga ins t t he head and s h a l l rest normally on the s l i d e cha i r s . No p a r t of a turnout s h a l l have wear i n excess of the maximum given i n Table 1 , except t h a t t h e minimum height of s tock rails of s tocks and guards and any cross ing s h a l l be a s follows: 57 kg rail : 155 mm 48 kg r a i l : 140 mm 40 kg r a i l : 117 nmi
30 kg ra i l : 105 imn. Each set s h a l l c lo se ly match the r a i l s i n the l i n e i n which i t is in se r t ed . Tumbler weights of switch boxes s h a l l be painted with one coa t of an approved primer and two coa t s of an approved white pa in t . Stopblocks. 5.2.7, and 5.2.9. Stopblocks s h a l l be painted with one coa t of an approved primer and two coa t s of an approved whi te pa in t . Clearance Markers. Clearance markers s h a l l be placed between converging t racks at poin ts where the d i s t ance between cen t r e s is 3,45 m i n the case of I 065 mm gauge t rack , and 2.75 m i n the case of 610 nun gauge t rack . (o r o ther approved ma te r i a l acceptably bedded) and leve l wi th the ad jo in ing ground, o r b a l l a s t , o r cess f i l l , a s appl icable . The exposed sur face of each clearance marker s h a l l be painted wi th one coa t of an approved primer and two coa t s of an approved white pa in t . F i l l i n g Between Tracks. requi red t o walk, t he b a l l a s t cess s h a l l be f i l l e d with a) c l ean washed power s t a t i o n ash having good drainage p rope r t i e s , o r b) approved f i l l mater ia l t o wi th in 50 mm of the requi red f in i shed l eve l . nominal s i z e 6,7 nmi. Dera i l Devices. Dera i l devices s h a l l be supplied and i n s t a l l e d by the Contractor i n the pos i t i ons given on the drawings or a s d i rec ted . Each d e r a i l device s h a l l be painted wi th one coa t of an approved primer and two coa t s of an approved white pa in t . Signboards. l e v e l c ross ings , road s igns s h a l l be e rec ted i n accordance wi th the requirements of the app l i cab le Road T r a f f i c Ordinance and t o t h e co r rec t c learances l a i d down i n the r e l evan t SAK regula t ions .
CLEARANCE OF SIT6 ON COMPLETION. On completion of cons t ruc t ion of trackwork the Contractor s h a l l c l e a r away and remove from the S i t e a l l p l an t , surp lus PWM, rubbish. and temporary works of every kind and leave the whole of the S i t e and the Works c lean and i n a workmanlike condi t ion t o the s a t i s f a c t i o n of the Engineer.
The t r ack s h a l l be brought to i ts proper
Each
Turnouts, s l i p s , and crbss ings s h a l l be cons t ruc ted complete wi th and foo tgua rds , to t h e standard gauges and c learances requi red
Stopblocks s h a l l be l a i d , j o in t ed , l i f t e d . tamped, and boxed i n a s spec i f i ed i n 5.2.6,
The markers s h a l l cons i s t of second-hand r a i l s bedded with the f lange uppermost
I n the spaces between t racks where shunters and o the r opera t ing s t a f f are
The upper 50 mm s h a l l be f i l l e d wi th aggregate of
Signboards s h a l l be i n s t a l l e d i n the pos i t i ons shown on the drawings. I n the case of
11 SABS 1200 NB-1981 Railway s i d i n g s (trackwork)
6. 6.1
7. 7.1
7.2 7.2.1
7.2.2
7.3
a . 8.1 8.1.1
8.1.2
TOLERANCES Unless o therwise s t a t e d i n t h e p r o j e c t s p e c i f i c a t i o n . t h e p e r m i s s i b l e d e v i a t i o n s (PO) ( s e e Clause 6 o f SABS 1200 A or SARS 1200 M, as a p p l i c a b l e ) s h a l l be w i t h i n t h e a p p r o p r i a t e of t h e fo l lowing l i m i t s f o r Degree of Accuracy 111 i n t h e case of a p r i v a t e s i d i n g and Degree of Accuracy I1 f o r work done on SAR t racks :
a) Track a l lgnmenl PD from t r u e s t a k e d c e n t r e l i n e ......................... PD from t r u e level of t r a c k ............................. b) Track gauge ( s t r a i g h t s ) PD from gauges s p e c i f i e d i n 5.2.7 ....................... c) S t r a i g h t n e s s of t r a c k PD from a 5 m s t r a i g h t l i n e ............................. d) S u p e r e l e v a t i o n PD a t any two p o i n t s 1 200 mm a p a r t ..................... e) S l e e p e r s p a c i n g PD from nominal s p a c i n g s p e c i f i e d i n Drawing W-4 ....... PD a t j o i n t s l e e p e r s .................................... f ) C i r c u l a r curves PD from t h e s t a n d a r d o r f s e t f o r o f f s e t s measured on a 10 m chord .............................................. g) S t r u c t u r e c l e a r a n c e PD of c l e a r a n c e fo r t r a c k l a i d a d j a c e n t t o f i x e d s t r u c t u r e s .............................................. h) P la t form l e v e l PD from s p e c i f i e d h e i g h t between rail l e v e l and p l a t f o r p l e v e l ................................................... i) S l e e p e r dimensions PD from nominal l e n g t h .................................. PD from nomlnnl wid th ................................... PD from nominal depth ................................... PD from p a r a l l e l ( top and bottom) ....................... PD from p a r a l l e l ( s i d e s ) ................................ -
A s s t a t e d i n t h e p r o j e c t s p e c i f i c a t i o n i f b e t t e r t h a n I
P e n n i s s i b 1e d e v i a t i o n
Degree of Accuracy
111
mm
+ 20 + 20
+ 3
+ 5
+ 5
+ 25 + 10
- - - - - - -
-0 +10
+ 20
-0 +75 -0 +25 -0 +25
+ 10 + 25
g r e e of Acc
-
- -
+ 6 - - + 3
+ 3
+ 2
+ 3
+ 25 + 10
- - - - -
+ 5 -
4 +10
- + 3
* * * * * 'acy 111 is :equired.
TESTING GENERAL. T e s t i n g of t h e s i d i n g w i l l t a k e t h e form of t h e checking of c o n s t r u c t i o n g e n e r a l l y and p a r t i c u l a r l y of gauges. s u p e r e l e v a t i o n s . c l e a r a n c e s , etc. by t h e PWi (see 2.4) and o t h e r o E f i c i a l s of t h e SAR. Such checking w i l l b e a d d i t i o n a l t o and w i l l t a k e precedence over any checks c a r r i e d out by t h e Engineer.
INSPECTION AND CHECKING OF TILE SIDING BY SAR When c o n s t r u c t i o n is complete , t h e C o n t r a c t o r s h a l l a) a d v i s e t h e Engineer accord ingly , and b ) submit t o t h e Engineer a C e r t i f i c a t e of Compliance, i n t h e form r e q u i r e d by t h e SAR. The C o n t r a c t o r s h a l l a t t e n d upon t h e PWI or o t h e r SAR o f f i c i a l ( s ) d u r i n g t h e checking. a t t h e s o l e d i s c r e t i o n of t h e PWI or t h e s a i d o t h e r o E f i c i a l ( s ) . o f c l e a r a n c e s , gauges, s u p e r e l e v a t i o n s , and o t h e r f e a t u r e s of trackwork. A t h i s own c o s t , t h e C o n t r a c t o r s h a l l r e c t i f y work t h a t does n o t , i n t h e opin ion of t h e PWI or o t h e r SAR o f f i c i a l ( s ) , comply wi th t h e SAR's requi rements (see 8.1.1).
CERTIFICATE OF COMPLIANCE AND UNDERTAKING BY UWNEK. The Engineer w i l l submit t h e C e r t i f i c a t e of Compliance and t h e Undertaking by t h e Owner t o t h e SAR.
MEASUREMENT AND PAYMENT BASIC PRINCIPLES The b a s i c p r i n c i p l e of measurement and payment f o r a l l t rackwork, b a l l a s t i n g , and s u n d r i e s is t h a t t h e rate, i n a d d i t i o n t o cover ing t h e i t e m s s p e c i f i e d i n 8.3. s h a l l cover t h e c o s t of having a l l m a t e r i a l s inspec ted by t h e PWI b e f o r e use and t h e c o s t of f e e s payable t o t h e SAR for i n s p e c t i o n and t e s t i n g of t h e s i d i n g . Except where any i t e m of PWM is provided and d e l i v e r e d by o t h e r s . t o a p o i n t t h a t has n o t been des igna ted a t t h e t e n d e r s t a g e . a l l haul w i l l be regarded as f r e e h a u l . o n l y where p r i o r w r i t t e n a u t h o r i t y has been obta ined from t h e Engineer. Where overhaul is payable , t h e a d d i t i o n a l d i s t a n c e w i l l he measured by t h e s h o r t e s t p r a c t i c a b l e r o u t e i n one d i r e c t i o n only , t o t h e n e a r e s t 0.1 km.
Overhaul w i l l be payable
SABS 1200 NB-1381 Kailway s i d i n g s ( t rackwork)
12
8 . a.
, 2 COMPUTATION OF (~UAwTITIES 2.1 Measurement oC trackwork w i l l be cont inuous , wi th no deduct ions made f o r t h e l e n g t h s occupied by
turnouts . s l i p s , c r o s s i n g s . s topblocks , etc. which are measured as e x t r a over p l a i n trackwork. Where measurcment s ta r t s a t turnouts , s l i p s . o r c r o s s i n g s i t w i l l be made from t h e s t o c k r a i l j o i n t .
inc luded i n 8 .2 .2 Measurement oC b a l l a s t w i l l be t o t h e s p e c i f i e d prof i le -and no excess b a l l a s t w i l l be t h e measurement.
8.3 SQIF:I)ULED ITFM 8.3.1 Supply, D e l i v e r , and S t o c k p i l e (or Take Del ivery o t and S t o c k p i l e ) Trackwork
S e p a r a t e items w i l l be scheduled f o r each length and class of rail. The rate s h a l l cover t h e cost of purchase of the materials and t h e i r d e l i v e r y . unload p i l i n g on a slte or sites s e l e c t e d by t h e Cont rac tor .
S e p a r a t e items w i l l be scheduled f o r each type of s l e e p c r .
a ) Rails (o r check ra l l s ) ...........................................................
b) Slee[,ers ......................................................................... The rate s h a l l cover t h e cost of purchase of t h e materials mid t h e i r d e l i v e r y p i l i n g on a site o r sites s e l e c t e d by t h e Cont rac tor . c ) Rai l - to-s leeper f a s t e n i n g s for ra i l s o t h e r than check and runntng r a i l s .. S e p a r a t e items w i l l be scheduled f o r each type of f a s t e n i n g . The rate s h a l l cover t h e cost of purchase of t h e materials and t h e i r d e l i v e r y D i l i n n on a site o r sites s e l e c t e d bv t h e Cont rac tor .
I
d) Rai l - to-s leeper f a s t e n i n g s f o r check and running rails ................... Separa te items w i l l be scheduled f o r each type of f a s t e n i n g . The rate s h a l l cover t h e cost of purchase of t h e materials and t h e i r d e l i v e r y p i l i n g on a site or sites s e l e c t e d by t h e Cont rac tor .
S e o a r a t e items w i l l be scheduled f o r d i f f e r e n t a n g l e s of tu rnouts . s l i o s e) Turnouts ( o r s p e c i a l s l i p s and c r o s s i n g s ) complete ..................
- . . take-off tu rnout w i l l no t normally be measured under t h i s item. The r a t e s h a l l cover t h e cost of purchase of t h e materials and t h e i r d e l p i l i n g on a s i te or sites s e l e c t e d by t h e Cont rac tor . f ) Cross ing t imhers o r c r o s s i n g t i e s ................................... Separa te items w i l l be scheduled f o r each length and type. The rate s h a l l cover t h e cost of purchase of t h e m a t e r i a l s and t h e i r d e l p i l i n g on a site o r sltes s e l e c t e d by t h e Cont rac tor .
.... and
v e r y
.... v e r y
.. Unit : t
ng, and s t o c k -
. . u n i t : No.
unloading, and s t o c k -
.......... Unit: N o .
unloading, and s t o c k -
.......... Unit : set
unloading, and s t o c k -
.......... Unit: N o . c r o s s i n g s . NOTE: The
unloading, and s t o c k -
.......... Unit : No.
unloading, and s t o c k -
g ) F i s h p l a t e s .......................................................................... Unit : p r . S e p a r a t e items w i l l be scheduled f o r each type. The rate s h a l l cover t h e cost of purchase of t h e materials and t h e i r d e l i v e r y , un loading , and s tock- p i l i n g on a s i t e o r s i t e s s e l e c t e d by t h e Cont rac tor . h) F i s h b o l t s , n u t s , and s p r i n g washers ................................................. Unit: set S e p a r a t e items w i l l be scheduled f o r each type. The rate s h a l l cover t h e cost of purchase of t h e materials and t h e i r d e l i v e r y , unloading. and s t o c k - p i l i n g on a s i te or si tes s e l e c t e d by t h e Cont rac tor . - i) Stopblocks complete , i n c l u d i n g h u f f e r ............................................... Unit : No. Separa te items w i l l be scheduled f u r each type. The rate s h a l l cover t h e cost of purchase of t h e m a t e r i a l s and t h e i r d e l i v e r y , unloading, and s t o c k - p i l i n g on a s i t e o r sites s e l e c t e d by t h e Cont rac tor . j ) Overhaul on items ( a ) - ( i ) above ( P r o v i s i o n a l ) ....................................... Unit: t.km Overhaul d i s t a n c e s w i l l be computed from t h e a d d i t i o n a l d i s t a n c e ( t o t h e n e a r e s t 0.1 km from t h e end of. t h e 0.5 km f r e e h a u l ) m u l t i p l i e d by t h e nominal c a p a c l t y of t h e v e h i c l e used i f i t is f u l l y loaded o r , If n o t , p ro r a t a t o t h e f u l l y loaded capac i ty .
a ) Lay p l a i n t r a c k ..................................................................... Unit: Measured on c e n t r e l i n e of t rack . The ra te s h a l l cover t h e c o s t of t a k i n g d e l i v e r y of ra i l s , f i t t i n g s , and b a l l a s t from t h e v a r i o u s s t o c k p i l e s , i f any. t r a n s p o r t l n g , s o r t l n g . and s e l e c t i n g second-hand rails (where s u p p l i e d ) , l a y i n g , l i f t i n n . olacinr . and packing b a l l a s t , a l i m i n p , t h e complete t r a c k . and boxing i n .
8.3.2 Lay or I n s t a l l Trackwork m or km
-. ~ - - b ) Extra-over i;em (a j abov; f o r l a y i n g on s h o r t r a d i u s curves ............. ........... Unit: Range(s) of r a d i i w i l l he scheduled s e p a r a t e l y .
m or km
c ) Lay turnouts , s p e c i a l s l i p s , c r o s s i n g s , o r s topblocks complete ...................... Unit: S e p a r a t e items w i l l b e scheduled tor each type. NOTE: The take-off tu rnout w i l l no t normally be measured under t h i s i t e m . The rate s h a l l cover t h e c o s t of t a k i n g d e l i v e r y of rails, f i t t i n g s . and b a l l a s t from t h e v a r i o u s s t o c k p i l e s , i f any, t r a n s p o r t i n g , l a y i n g , l i f t i n g , p l a c i n g and packing b a l l a s t , a l i g n i n g t h e t u r n o u t . s p e c i a l s l i p , c r o s s i n g . or s topblock as a p p l i c a b l e , and boxing i n . d) Supply and i n s t a l l take-off tu rnout complete (only where r e q u i r e d i n terms of t h e p r o j e c t spec i - f i c a t i o n and scheduled) ................................................................ Unit : Sum The sum s h a l l cover t h e cost of t h e r e l e v a n t o p e r a t i o n s set o u t i n i t e m 8.3.l(e) and i t e m (c) above, and t h e c o s t of t a k i n g temporary occupat ion , c u t t i n g ra i l s , removing and d i s p o s i n g (as s p e c i f i e d ) of a n a p p r o p r i a t e l e n g t h of t r a c k owned by o t h e r s . and of s lewing i n (or i n s t a l l i n g by o t h e r means) and connec t ing up t h e take-off tu rnout . e ) Weldine, of rails i n t o long l e n g t h s .................................................. Unit: NO. Each welded j o i n t w i l l be taken as one u n i t .
No.
13 SABS 1200 NB-1981 Railway s id ings (trackwork)
8.3.3 Ba l l a s t ing
3 a ) Provide and d i s t r i b u t e (or take de l ive ry of and s tockp i l e ) b a l l a s t (Type and grading s t a t e d ) .............................................................. U n i ~ : m o r t The rate s h a l l cover the cos t of off-loading and d i s t r i b u t i o n of b a l l a s t . spec i f i ed i n the p ro jec t spec i f i ca t ion , tlie quant i ty measured w i l l be computed from t h e spec i€ i ed quan t i ty per u n i t l ength or t rack ( see 5.2.9). No deduction w i l l be made f o r the volume of stone d isp laced by s leepers . b) L i f t and pack trackwork and box i n .................................................. Unit: m o r km L i f t i n g and packing w i l l be measured on the cen t r e l i n e of the t rack . The rate s h a l l cover the cos t of a l l success ive l i f t s to br ing t h e t r ack t o the requi red l e v e l .
Unless some o the r b a s i s i s
c ) Extra-over i t e m (b) above f o r tu rnouts , spec ia l s l i p s , c ross ings , o r stopblocks ..... Unit: Nu. The rate s h a l l cover the add i t iona l cos t s of l i f t i n g , packing. and boxing i n of t he items scheduled. d ) F i l l between t r acks ................................................ .I.. ............. Unit: The rate s h a l l cover t h e cos t of providing, d i s t r i b u t i n g . p lac ing , and spreading s u i t a b l e ma te r i a l as spec i f ied . a ) Trackwork ........................................................................... Unit: m o r km b) Turnouts (angle s t a t e d ) ............................................................. Unit: No. c ) Stopblocks .......................................................................... Unit: No. The mass per metre of ra i l and number of s l eepe r s per k i lomet re w i l l be s t a t ed . The r a t e s h a l l cover the cos t of the purchase of ma te r i a l s , t h e i r d i s t r i b u t i o n , and the cons t ruc t ion of t h e complete t rack , excluding ba l l a s t ing .
a) Trackwork ........................................................................... Unit: m o r km b) Turnouts (angle s t a t e d ) ............................................................. Unit: No. c ) Stopblocks .......................................................................... Unit: No. The volume of b a l l a s t per kilometre w i l l be s t a t ed . The rate s h a l l cover the cos t of providing the b a l l a s t , i t s d i s t r i b u t i o n , and the l i f t i n g and packing and boxing i n of the t r ack complete. Provide a l l Mater ia l s and Construct Sidings Complete a ) Trackwork ........................................................................... Unit: m o r km b) Turnouts (angle s t a t e d ) ............................................................. Unit: No. c ) Stopblocks ........................................................................... Unit: No. d ) Dera i l s ............................................................................. Unit: No. Mass per metre of ra i l , and number of s l eepe r s , and volume of b a l l a s t per kilometre w i l l be s t a t ed . The r a t e s h a l l cover the cos t of the provis ion of materials, t h e i r d i s t r i b u t i o n , and the complete cons t ruc t ion of the r e l evan t p a r t of t he s id ing .
8.3.7 Crane Track (o r R a i l s i n Quay Walls, e t c . ) ............................................. Unit: m Crane t r ack w i l l be measured as length of s i n g l e r a i l . The rate s h a l l cover t h e cos t of taking de l ive ry of r a i l s , f i t t i n g s . and b a l l a s t ( i f any) from the va r ious s tockp i l e s , t ranspor t ing , laying. l i f t i n g , p lac ing and packing b a l l a s t ( i f any), and a l ign ing t h e complete t rack .
m3
8.3.4 Provide Rai l s , S leepers , and a l l Fastenings and Lay Track only
8.3.5 Provide and Di s t r ibu te Ba l l a s t , L i f t and Box i n Track
8.3.6
8.3.8 Rerail and Resleeper a ) Remove (or i n s e r t ) s l eepe r s (or c ross ing bea re r s ) with r a i l s i n pos i t i on . d e t a i l s s t a t e d ................................................................................. Unit: No. Separa te items w i l l be scheduled f o r s l eepe r s and f o r c ross ing bearers . The rate s h a l l cover t h e cos t of whichever of the following a r e appl icable : s l eepe r s ( o r c ross ing bearers ) from the var ious s tockp i l e s , i f any; t r anspor t ing and d i s t r i b u t i n g t u t h e v i c i n i t y of the res leeper ing (or rep lac ing of c ross ing bearers ) ; r e l eas ing s l eepe r f a s t en ings (dog sp ikes , coach screws, c h a i r s , so l ep la t e s , c l i p s , e t c . ) ; removing old s l eepe r s (o r c ross ing bea re r s ) , as appl icable ; i n se r t ing new s l eepe r s (or c ross ing bearers ) ; cleaning f a s t en ings and genera l ly f a s t en ing up t h e t r ack aga in wi th new o r e x i s t i n g f a s t en ings , as scheduled; retamping the b a l l a s t , a l i gn ing the t rack , and boxing in. b) Remove ( o r i n s e r t ) ra i ls ............................................................ Unit: t Separa te items w i l l be scheduled f o r each opera t ion and f o r r a i l s of each mass per metre. The r a t e s h a l l cover tlie cos t of taking de l ive ry of r a i l s from the var ious s tockp i l e s , and t ranspor t ing and d i s t r i b u t i n g them, removing ex i s t ing ra i l f i t t i n g s ( f i s h p l a t e s , f i s h b o l t s , and washers). removing rails , cleaning and o i l i n g r a i l f i t t i n g s ready f o r re-use, laying new r a i l s using new o r o r i g i n a l ra i l f i t t i n g s , as scheduled, rea l ign ing t h e t r ack , and l i f t i n g the re leased r a i l s and t r anspor t ing them back t o designated s tockp i l e s . c ) Des t ress ex i s t ing LWK t r ack ......................................................... Unit: m o r h Measured on cen t r e l i n e of t rack . The rate s h a l l cover t h e cos t of des t r e s s ing the ex i s t ing LWR t r ack i n accordance with the requirements of the p ro jec t spec i f i ca t ion . d ) Construct turnouts, c ross ings , e t c . alongside t r ack and slew i n t o pos i t i on .......... Unit: NO. Separate items w i l l be scheduled f o r each type of tu rnout , c ross ing , e t c . The r a t e s h a l l cover the cos t of taking de l ive ry of t he turnout , c ross ing etc., as appl icable . complete with a l l f i t t i n g s and bearers , t ranspor t ing t o the designated take-off po in t , assembling, c u t t i n g the e x i s t i n g rails t o c losu re length , opening up the b a l l a s t , removing the e x i s t i n g t r ack , slewing i n the turnout , c ross ing , e t c . , as re levant , f i x ing f i s h b o l t s and f i s h p l a t e s , r e b a l l a s t i n g and a l ign lng the t rack , and boxing in.
Taking de l ive ry of
opening up the b a l l a s t ;
- e ) D r i l l f i s h b o l t ho les o r cu t r a i l s ................................................... Unit: No. Each ho le o r c u t w i l l be measured. The r a t e s h a l l cover t h e c o s t of d r i l l i n g add i t iona l f i s h b o l t ho les o r c u t t i n g rails , as re levant . f ) Remove o ld t r ack signs .............................................................. Unit: No. The rate s h a l l cover t h e cos t of e s s e n t i a l excavation, u p l i f t i n g of o ld t r a c k s igns , b a c k f i l l i n g the holes from which t h e t r ack s igns were removed, and t ranspor t ing t h e s igns t o the designated depot.
SABS 1200 NB-1981 Railway s id ings (crackwork)
14
8.3.9 Rehallasc a) Repack and hox i n exiscLng crackwork ................................................ Unic: m o r km b) Remove a n d screen e x i s c l n g b a l l a s t .................................................. Unic: m3 Separace items w i l l be scheduled f o r manual and mechanlcal mechods of r eba l l a s t ing . c ) Dispose of s p o i l r e su l t i ng from reba l tasc ing ........................................ Unic: m3 The race s h a l l cover the cos t of loading, off-loading, and d isposa l wi th in 0.5 km. d) Overhaul on i t e m ( c ) ................................................................ Unic: m /km Overhaul will be measured as che product of the haul d i s t ance in excess of 0.5 km, and che volume hauled.
3
8.3.10 Sundries. Provide, d e l i v e r , and s tockp i l e (or cake de l ive ry of and scockpi le ) and i n s t a l l a ) Rai l l ub r i ca to r s .................................................................... Unic: No. b) Clearance markers ................................................................... Unic: No. c ) Track s igns ......................................................................... Unic: No. d) Guardrails, cacc le guards and s i m i l a r accessor ies ................................... Unic: No.
f ) Track bonding ....................................................................... Unic: No.
e) Insitlacing block j o i n t s (cype s t a t e d ) ............................................... Unic: sec Each p a i r of r a i l j o i n c s w i l l be measured as a sec.
Each rail j o i n c w i l l be measured. The r a t e f o r each of i t e m s (a)-(e), inc lus ive . s h a l l cover the cost of providing, de l iver ing . and in sca l l i ng each of che icems scheduled.
Separace items w i l l be scheduled f o r each cype. The race s h a l l cover the cos t of handling the released mater ia l from designaced scockpi les , loading ic i n t o railway trucks placed on the nearesc non-running l i n e to the s tockpi le . and making out despa tch notes in che form ordered.
8.3.11 Load mater ia l released from s tockp i l e s ................................................. Unic: c o r No.
8.3.12 Daywork. See SABS 1200 A o r SARS 1200 AA, as appl icable .
1 5 SABS 1200 NB-1981 Railway s id ings (trackwork)
/
8 K W >
8
MINIMUM CLEARANCE FOR ELECTRlFlC TlOf OF 4930mm TO ALLOW GAUGE 1065mm
FOR FUTURE IMPROVEMENTS IN TRACK STANDARDS. CLEARANCE FOR NEW STRUCTURES MUST BE NOT LESS THAN 5080mm ABOVE EXISTING RAIL LEVEL. STRUCTURES ADJACENT TO OR OVER CROSSOVER TRACKS MAY REQUIRE ADDITIONAL CLEARANCE, THE AMOUNT TO BE DECIDED ay THE C.C.E.
REWIREMENTS
WORKSHOP AREAS AND TEMPORARY
ALL DIMENSIONS IN MILLIMETRES ALL DIMENSIONS IN MILLIMETRES NON - ELECTRIFIED LINES ELECTRIFIED LINES
Drawing NB- 2- Minimum Structure Gauges (Straight Track)
'AD1 US OF
URVE IN
ETRES
90
100 125
150 175
200
250
300 400
500 600 800
1000
2000
3000
- A
315
285
230
190 165 145 115
96
70
60 50 40
30 15
10
- - B C D F G 8 8
2730 3060 4450
2700 3030 4450
2650 2950 4430
2600 2900 4430 2580 2880 4430 2570 2860 4420
2550 2800 4400
2540 2780 4400 2520 2700 4370
2520 2700 4370 2510 2660 4350 2500 2620 4340
2490 2580 4330
2480 2540 4300
2475,2500,4290,
NOTE : Dimensions in rnillimeters
I I25 2 I 10
I I 2 5 2 I I 0
I I 6 5 2058
I I 6 5 2058 I I 6 5 2055 I 2 I0 I995 1210 1995
I250 I908 1290 1885
1290 I885 I335 I830 1335 1830
1375 1770
1460 166C
I 500, I 600
H
1980
4 980
1980 4980 4970 4970
4970
4970 4960
4960 4953 4950
4940
4940
49 30
- CLEARANCE' FOR OVERHEAD STRU
- NON -ELECTRI FlED LINES ELECTRIFIED LINES
NOTES
I ALLOWANCE FOR CURVATURE "A" IS BASED ON 15 IOOmm BOGIE CENTRES 2 CLEARANCES ARE BASED ON MAXIMUM SUPERELEVATION FOR iNSlDE OF CURVE AND - _--
MINIMUM -SUPERELEVATION FOR OUTSIDE OF CURVE 3 FOR CURVES WITHOUT SUPERELEVATION USE GAUGE FOR STRAIGHT TRACK ADDING "A"
TO BOTH INSIDE AND OUTSIE 4 8 FOR 2160mm CLEARANCE DEDUCT 300rnm 5 (> MINIMUM CLEARANCE FOR ELECTRIFICATION DIMENSION "H" TO ALLOW FOR F U M E
IMPROVEMENTS INTRACK STANDARDS. CLEARANCES FOR NEW STRUCTURES MUST BE
6 STRUCTURES ADJACENT TO OR OVER CROSSOVER TRACKS MAY REQUIRE ADDITIONAL CLEARANCE : THE AMOUNT TO BE DECIDED BY THE CHIEF CIVIL ENGINEER
150mm MORE THAN DIMENSION H " ABOVE EXISTING RAIL LEVEL
Drawing NB-3 - Minimum Structure Gauges (Curves),Gauge I 065mm
325
NOMINAL SPACING 0=700mrn
END OF RAIL AT JOINT
LENGTH OF RAIL -1
NOMINAL SPACING C= 800 rnrn
5 MAX 250
SLEEPERS SLEEPERS A B PER PER mm mm RAIL km VARIABLE
52 I 4 4 4 525 850
I429
36 000
1065mm GAUGE
FOR 1065 mm GAUGE
SLEEPERS SLEEPERS A B PER PER mm mm RAIL k m VARIABLE
46 I 278 475 800
I 250
610 mm GAUGE
18
1 -/ END OF RAIL AT JOINT
1 333 550 BOO
GAUGE NOTES
I.MMENSlON FROM END OF RAIL To CENTRE L INE OF FIRST SLEEPER MAY VARY TO SUIT JOINT REPUIRE- MENTS BUT MUST NOT EXCEED 325mm
2.DIYENSION "B"FROM END OF R A I L TO SECOND SLEEPERS IS FIXED.
3.SLEEPER SPACING A)R SAFETY BARS To BE SAME AS FOR LOCK BARS.
4. PROVIDED THAT STEEL SLEEP- ERS OF TYPES E.22 AND E.1053 ARE USED, THREE RAILS OF 12m MAY BE WELDED TOGETHER. NO AMENDMENT TO THE SLEEPER SPACING IS NECESSARY.FOR ALL OTHER TYPES OF SLEEPERS ONLY TWO RAILS OF 12m MAY BE WELDED TOGETHER.
255 255 635 735 14/813 , SLEEPER SPACING To SUIT LINE -
LOCK BAR
SLEEPER SPACING FOR LOCK BARS ON WOODEN SLEEPERS STOCK RAIL JOINT
Drawing NB- 4 - Sleeper Spacing
19
APPENDIX A. APPLICABLE STANDARLIS
Keference is made to the latest issues of the following standards:
SABS SABS SABS SABS SABS SABS
SABS 1083 Aggregates from natural sources SABS 1200 A Civil engineering construction : General
200 AA Civil engineering construction : General (small works) 200 D Civil engineering construction : Earthworks 200 DA Civil engineering construction : Earthworks (small works) 200 DN Civil engineering construction : Earthworks (railway sidings) 200 C Civil engineering construction : Concrete (structural) 200 GA Civil engineering construction : Concrete (small works)
SABS 1200 NB-1981 Railway sidings (trackwork)
ISBN 0.626-06060-5 sabs pta