surveying i lab

8/10/2019 Surveying I lab

1/23

1.CHAIN SURVEY

MEASUREMENT OF LENGTH OF THE LINE

AIM:

To measure the le!th o" the !#$e l#e us#! %ha# a& #ts a%%essor#es.

INSTRUMENTS RE'UIRE(:

Cha#

Ta)e

Ra!#! ro&

Arro*s

UNFOL(ING A CHAIN:

+u&le o" a %ha# #s ta,e - r#!ht ha& a& the t*o -rass ha&les arehel& # le"t ha& a& the %ha# #s thro*.

/ROCE(URE:

1. T*o e&s o" the l#e to -e measure& are mar,e& a& ra!#! ro&sare ere%te&.

0. Follo*er ta,es - ero e& o" the %ha# a& other e& #s ta,e -lea&er. No* the %ha# #s e2te&e& alo! the l#e.

3. Lea&er #s su))l#e& *#th 14 um-er o" arro*s a& the "ollo*er re%tsthe lea&er to )ro%ee& alo! the l#e. At the e& o" %ha# le!th5 aarro* #s ere%te&.

6. No* the %ha# #s &ra!!e& alo! the "or*ar& re%t#o a& ero e&o" the %ha# #s hel& out at 7rst arro* - the "ollo*er.

8. The )ro%e&ure #s re)eate& t#ll the e& )o#t o" the l#e #s rea%he&.

MO(EL RESULT:

Le!th o" l#e9o.o" arro*s;%ha# le!th


2/23

0.CHAIN SURVEYING

(ETERMINATION OF AREA OF /OLYGON

AIM:

To &eterm#e the area o" )ol!o us#! the %ha# sur$e#!.


Cha# ?1

Arro* ?8

Ra!#! ro&

Ta)e ?1 Cross sta@ ?1

FORMULA:

Area o" tr#a!le 9ss?a


3/23

MO(EL:

/OINTS NO.OFARROBS

NO.OF LINDS RESI(UALLENGTH

TOTALLENGTH

A+ 1;34=18968 34;4.394. 4.1 6A( 0;3494 1;4.398.> 4 8.>+C 1;34934 8;4.391.8 4 31.8C( 1;34934 ;4.390.6 4 30.6(E 1;34=93 0;4.394. 4.18 3.>8EF 01 ;4.390.> 4.10 03.0FA 34=10960 4 4 60AF 1 ;4.390.> 4.08 04.8FF 1;34934 01;4.39.3 4 3.3

A+ 0> 1;4.394.3 4 0>.3++ 1;34934 04;4.39.4 4. 3.EE 0.> 4 4 0.>AE 1;34934 6>;4.3913.1 4.0 66.3CC 1;34934 8;4.391.8 4.1 31.AC 34;1=0>98> >;4.390.1 4.18 8.08(C 1;4.394.3 4.18 .68(E 01 1;4.394.3 4 01.3

CALCULATION:

Area o" A+C(EFArea o" tr#a!le 94.8;-;hArea o" tr#a!le A++ A194.8;0>.3;3. 9843.8m0

Area o" tr#a!le AFF A094.8;04.>08;3.3 93>.18m0

Area o" tr#a!le (EE A394.8;01.3;0.> 931.348m0

Area o" tr#a!le C(C A694.8;31.;.68 914.1m0

Area o" tra)e#um 94.8;a=-.4m0

Area o" )ol!o 9A1=A0=A3=A6=A8=A 931>.3>8m0


4/23

/OINTS NO.OFARROBS

NO.OF LINDS RESI(UALLENGTH

TOTALLENGTH

MO(EL RESULT:

Area o" )ol!o 931>.3>8 m0

RESULT:


5/23

Area o" )ol!o 9 m0

3.COM/ASS SURVEY

(ETERMINING INACCESSI+LE HORIONTAL (ISTANCE

AIM:

To &eterm#e #a%%ess#-le hor#otal sta%e us#! %om)ass sur$e.


Com)ass *#th tr#)o&

Ra!#! ro&

Arro*s

Ta)e

FORMULAE:

S#e rule 9 +Cs# A9ACs# +9A+s# C +C 9A+0=AC0?0A+;AC;%osJ

/ROCE(URE:

1. A l#e o" /' 34m #s ta,e a))ro2#matel )arallel to #a%%ess#-lehor#otal sta%e #s sele%te&.

0. Com)ass #s set e2a%tl o$er the stat#o /.3. The %om)ass #s le$elle& a%%uratel.

6. O-Ke%t $ae #s ture& to*ar&s stat#o A a& the ra!#! ro& atstat#o #s -#se%te& e2a%tl.8. The %om)ass #s sh#"te& to stat#o t*o a& a%%uratel le$elle&.. For stat#o '5 ra!#! ro&s at stat#o /5 A a& + are -#se%te& e2a%tl

a& the rea!s are re%or&e&. All #%lu&e& a!les are %al%ulate& #tr#a!ular et*or,.

>. S#e rule #s a))l#e& to 7al s#&es o" a tr#a!le a& %os#e rule #sa))l#e& to 7& #a%%ess#-le hor#otal sta%e A+.

. To 7& the s#&es o" a tr#a!le5 s#e rule #s use&.


6/23

INSTRUMENT STATION LINE +EARING/

'

A/+/

'A'+

68100

8

MO(EL RESULT:

The #a%%ess#-le hor#otal sta%e A+98.m.

RESULT:

The #a%%ess#-le hor#otal sta%e A+ 9 m.

6.(ETERMINATION OF AREA OF /OLYGON

AIM:


7/23

To &eterm#e the area o" )ol!o us#! %om)ass tra$erse *#th l#earmeasuremets.


Com)ass *#th tr#)o& Ra!#! ro& ?

Ta)e

FORMULA:

Area 94.8120?21


8/23


9/23

MO(EL RESULT:

Area o" )ol!o91>8.33 m0

RESULT:

Area o" )ol!o 9

8.TBO /OINT /RO+LEM


10/23

INTERSECTION METHO(

AIM:

To &eterm#e the hor#otal sta%e us#! )lae ta-le sur$e#!.


/lae ta-le *#th tr#)o& ?1

/lae al#&a&e ?1

Trou!h %om)ass ?1

S)#r#t le$el ?1

/lum-#! "or, ?1

O/ERATIONS:

LEVELLING:Sett#! the )lae ta-le o$er !rou& )o#t a& ,ee)#! the ta-le hor#otal

us#! s)#r#t le$el.

CENTERING:Tras"err#! the !rou& stat#o o to the &ra*#! sheet - meas o" U

"or,.

ORIENTATION:F#2#! the ta-le # reQu#re& re%t#o - rotat#! the ta-le su%h that all

)lotte& l#es o the &ra*#! sheets )arallel to the %orres)o! t#mes # the7el& *or,.

1. A l#e /' o" 34 m lo! a))ro2#matel )arallel to hor#otal sta%eA+ #s sele%te& # the 7el&.

0. /lae ta-le #s set at stat#o /5 le$ell#! a& %eter#! are &oe%orre%tl a& )o#t / #s tras"erre& o to the &ra*#! sheet.

3. No* the l#e /' #s )lotte& o the &ra*#! sheets us#! su#ta-les%ales a& &eote& - / a& '.

6. /#$ot the al#&a&e a-out the / sas are &ra* %orres)o! to the7el& stat#o A5 +.

8. Al#&a&e #s ,e)t alo! the ta-le #s or#ete& - ta,#! -a%, the r#!hto )re$#ous stat#o /. From the )o#t O sas %orres)o! to the)re$#ous sas "rom stat#o /.

. The le!th -et*ee #terse%t#o )o#ts *#th &ra*#! sheets #s eQualto hor#otal sta%e A+.


11/23

MO(EL RESULT:

The le!th A+ measure& us#! )lae ta-le sur$e#! 9>>.m.

RESULT:

The le!th A+ measure& us#! )lae ta-le sur$e#! 9

.THREE /OINT /RO+LEM


12/23


13/23


14/23

RESULT:

The !#$e area # the 7el& #s &eterm#e& us#! )lae ta-le sur$e#! Three

/o#t /ro-lem

>.LEVELLING ? RISE AN( FALL METHO(

AIM:

To &eterm#e the re&u%e& le$el o" the !#$e )o#ts - r#se a& "all metho&.


15/23


1.Le$ell#! #strumet *#th tr#)o&.

0.le$ell#! sta@.

TEM/ORARY A(USTMENTS:

SETTING U/ : Sett#! the #strumets o$er th e stat#o.

LEVELLING U/: Dee) the #strumets at us#! le$el#! s%re*s.

ELIMINATION OF /ARALLEP: Us#! the ee)#e%e a& "o%us#! s%re*

-r#!#!the %lear #ma!e o" o-Ke%t # the )lae o" %ross ha#rs.

Ta-le "or r#se a& "all metho&

STATION +S IS FS RISE FALL RL REMARD


16/23

S


17/23

RESULT: The ele$at#o o" $ar#ous )o#ts are %al%ulate& a& &eterm#e& - r#se

a& "all metho&.


18/23

.LEVELLING HEIGHT OF COLLIMATION METHO(

A#m:

To stu& the %om)oets5 o)erat#os o" le$ell#! #strumets a& to 7& the

re&u%e& le$el o" $ar#ous )o#ts.

Istrumets ReQu#re&:

Le$ell#! Istrumet *#th tr#)o&?1

Le$ell#! Sta@?1

Tem)orar A&Kustmets:

Sett#! U): Sett#! the #strumet o$er the stat#o.

Le$ell#! U): Dee)#! the #strumet at us#! le$ell#! s%re*s.

El#m#at#! /aralla2: Us#! the ee )#e%e5 "o%uss#! s%re*s5 -r#! a %lear

#ma!e o" a o-Ke%t # the )lae o" %ross ha#r.

To Che%,:

+S?FS9Last RL?F#rst RL


19/23


20/23


21/23

RESULT: The ele$at#o o" $ar#ous )o#ts are %al%ulate& a& &eterm#e& - he#!ht

o" %oll#mat#o metho&.

.CHECD LEVELLING

A#m:

To stu& the %om)oets5 o)erat#os o" le$ell#! #strumets a& to 7& the

re&u%e& le$el o" $ar#ous )o#ts. To %o&u%t the %he%, le$el.

Istrumets ReQu#re&:

Le$ell#! Istrumet *#th tr#)o&?1

Le$ell#! Sta@?1

Tem)orar A&Kustmets:

Sett#! U): Sett#! the #strumet o$er the stat#o.

Le$ell#! U): Dee)#! the #strumet at us#! le$ell#! s%re*s.

El#m#at#! /aralla2: Us#! the ee )#e%e5 "o%uss#! s%re*s5 -r#! a %lear

#ma!e o" a o-Ke%t # the )lae o" %ross ha#r.

To Che%,:

+S?FS9Last RL?F#rst RL

STATION +S IS FS HOC RL REMARDS


22/23


23/23

RESULT:

The re&u%e& le$els o" $ar#ous )o#ts are &eterm#e& a& ta-ulate&.

surveying i lab

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