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HISTORICAL RESEARCH REPORTResearch Report TM/72/15
1972
Pneumoconiosis Field Research: Environmental Conditions at Morrison Busty Colliery, 1969 Bradley A, Gibbon E
Copyright © 2006 Institute of Occupational Medicine. INSTITUTE OF OCCUPATIONAL MEDICINE No part of this publication may be reproduced, stored Research Avenue North, Riccarton, Edinburgh, EH14 4AP or transmitted in any form or by any means without Tel: +44 (0)870 850 5131 Fax: +44 (0)870 850 5132 written permission from the IOM e-mail publications@iomhq.org.uk
Pneumoconiosis Field Research: Environmental Conditions at Morrison Busty Colliery, 1969
Bradley A, Gibbon E This document is a facsimile of an original copy of the report, which has been scanned as an image, with searchable text. Because the quality of this scanned image is determined by the clarity of the original text pages, there may be variations in the overall appearance of pages within the report. The scanning of this and the other historical reports in the Research Reports series was funded by a grant from the Wellcome Trust. The IOM’s research reports are freely available for download as PDF files from our web site: http://www.iom-world.org/research/libraryentry.php
HISTORICAL RESEARCH REPORTResearch Report TM/72/15
1972
NOT FOR PUBLICATION Report No. TM/72/15
I N S T I T U T E O F O C C U P A T I O N A L M E D I C I N E
PNEUMOCONIOSIS FIELD RESEARCH
ENVIRONMENTAL CONDITIONS AT MORRISON BUSTY COLLIERY, 1969
by
A. Bradley and E. Gibbon.
Environmental Branch,Institute of Occupational Medicine,Roxburgh Place,Edinburgh, EH8 9SU.(Tel. 031-667 513D August, 1972
Report No. TM/72/15
I N S T I T U T E O F O C C U P A T I O N A L M E D I C I N E
PNEUMOCONIOSIS FIELD RESEARCH
ENVIRONMENTAL CONDITIONS AT MORRISON BUSTY COLLIERY, 1969
by
A. Bradley and E. Gibbon
CONTENTS
SUMMARY
1. INTRODUCTION
2. MORRISON BUSTY COLLIERY
2.1 Seams worked and output
2.2 Methods of working
2.3 Ventilation and temperature
2.*f Dust suppress!on
2.5 Manpower and occupational groups
3. SAMPLING AND EVALUATION
3.1 Sampling programme
3.2 Sampling and measuring
3.3 Evaluation
*f. RESULTS
.1 Faceworkers
k.2 Non-face samples
*t.3 Relationship between return road and face concentrations
5. OBSERVATION 3 AND CONCLUSIONS
5.1 Respirable dust concentrations
5.2 Compositional analysis
5.3 Manpower
REFERENCES
TABLES 3 - 13, 1?
FIGURE 1
Report No. TM/72/15
I N S T I T U T E O F O C C U P A T I O N A L M E D I C I N E
PNEUMOCONIOSIS FIELD RESEARCH
ENVIRONMENTAL CONDITIONS AT MORRISON BUSTY COLLIERY, 1969
by
A. Bradley and E.« Gibbon
SUMMARY
This report tabulates respirable dust concentrations and compositionsfor the period March 1969 - March 1970 at Morrison Busty Colliery.All dust measurements were made using the M.R.E. gravimetric sampler.
Information regarding methods of working, outputs, and manpower isalso given. The data are presented in a series of face charts.
The colliery had a coalface mean respirable dust concentration ofVy mg/m3. The mean ash content of the respirable dust was 22*2per cent and the mean quartz content 2*6 per cent (concentration0*12 mg/m3).
PNEUMOCONIOSIS FIELD RESEARCH
ENVIRONMENTAL CONDITIONS AT MORRISON BUSTY COLLIERY, 1969
. ,<i .ii i i . • • I.
• . feyA. Bradley .and E. Gibbon . . .
1. INTRODUCTION ' .
This report describes environmental measurements made by thePneumoconiosis Field Research (P.F.R.) during the period March 1969 -March 1970.
The dust measurements, as previously (Bradley & Gibbon, 1971 )• were madewith the M.R.E. Gravimetric Sampler, Type 113A. Concentrations, inparticular those in the face areas, are presented in a series ofcharts with values for different sites and occupations. The chartsalso give details of mining conditions and activities.
In April 1969.* .the .sampling strategy was modified to, allow volunteersto carry instruments for measuring dust conditions at their ownplaces of work. Although a'departure from the 'random collier'method of sampling_which .has been .used since the start .of the P.F.R.dust measurements, this technique has been adopted for the increasedsampling frequency and hence precision it gives to estimates ofgroup mean concentrations and to exposures to dust of regularinstrument carriers.
This report again gives general information about the colliery, notesoccupational groups for which data are missing and continues toexamine the relationship between dust concentrations at controlsampling points in return roadways.and on faces.
2.
2. MORRISON BUSTY COLLIERY
2.1. Seams worked and output ' - ' ''
The seams worked at Morrison Busty are, in descending order,Harvey (02:321)*, Busty (02:411) and Brockwell (02:470). TheBusty seam is divided by intervening strata into two similar layerseach varying in thickness from 60 to 100 cm. Units working thetop section are indicated by reference numbers which include theletters, TQ; those working the bottom section include the letters,BQ, in the reference number.
Other seam details are given in Tables 3-13.
A summary of the seam outputs for the accounting year 1969 isgiven- in Table 1. ' "
' TABLE 1
: Seam Outputs (tons)
* ^1969 .2nd quarter
3rd quarter
4th quarter
1970
1st quarter
TOTAL
Percentage SeamOutput
Harvey
8 401
566
17 580
15 472
42 019
20
Busty
37 867
29 94t
9 989
i
20 606
98 403
48
Brockwell
12 075
17 725 .
23 732
11 806
65 338
32
Total
58 343 '
48 232
51 301
47 884
205 760
100
The decrease in output was the result of the cut in manpower during1969 of almost 30 per cent. There was no compensating increase inme chanisation.
* Seam correlation code
3.
2.2 Methods of working
All faces in.the Busty Seam were single unit, longwall. advancing.They were either hand-got by pneumatic.picks or mechanised withrapid ploughs. Most faces worked two production shifts in the 24hour cycle.
The faces in the Harvey and Brockwell'Seams were all worked by N.C.B.Scrapers. They were double unit longwall advancing faces andusually worked three production shifts in the 24 hour cycle.
Preparation work on the scraper and plough faces was done on produc-tion shifts. On the hand-got faces ripping was carried out on theproduction shifts with conveyor shifting and prop drawing takingplace on the non-production shifts in the cycle. Individual facedetails are given in Tables 3-13.
2.3» Ventilation and temperature
Details- of. ventilation and temperature are given in the face charts(Tables 3 - 13).
2.4 Dust suppression
The Busty Seam workings during the> survey were all in the Charley NorthDistrict where there had been a history" of high dust" concentrations inthe past and all faces were dry. As a consequence much effort was putinto dust suppression; in particular, two men were allocated, on erohface, to water-infusion. Also, water ampoules were, used for shot-firing, wet boring was used at all ripping lips, all conveyor transferpoints had sprays attached and hand sprays were available at roadheads (Tables 3-13).
In the Harvey and Brockwell Seams most faces were naturally wet, butwet drilling, water ampoules and conveyor transfer point sprays werestill used.
Martindale Type 'T1 dust respirators were worn by.about 20 per cent offacemen in. the Busty Seam..
2.5 Manpower and occupational groups
The total number of men employed at the Colliery in April 1970 was658. From Table 2, below, which shows the distribution of manpowerduring the current survey, and for the previous two years, it can beseen that the colliery population continued to decline in 1969.There was no significant increase in mechanisation, so the relativedistribution of manpower amongst face, elsewhere underground andsurface activities remained undisturbed.
TABLE 2
Colliery Manpower Distribution
YearEnding
196?
1968
1969
Average numberof men employed
including absentees
1 ^50
1 08k
658
Percentage of men employed
Face
kk
kk
ElsewhereUnderground
46
k2
^•
Surface
10
13
11
As has been described before (Bradley•& Gibbon, 1971) the collierypopulation was divided into occupvitional fjroupo where ncnbers hadsinilar exposures to dust.
The number and distribution of occupational groups at Morrison Bustyin 1969 was as follows:
Face Groups -30Elsewhere Underground Groups 29Surface Groups 3
Individual daily records of attendance in the various collieryoccupational groups have been maintained. These, together withoccupational group mean concentrations, give cumulative records ofexposure to dust for each member of the colliery population.
3. SAMPLING AND EVALUATION
3.1 Sampling programme
At the start of this survey an alternative to the 'random collier1
method of sampling, which had been used exclusively since the startof the research (Ashford & Smith, 1956) was introduced. In the newsystem workmen carried sampling instruments to sample their ownenvironments during their shifts and, it was considered that instru-ments, by being placed nearer the representative (volunteer carrier),would more accurately measure the dust in the environment than hadbeen possible previously. As a number of instruments could beissued simultaneously the increased sampling cover was expected toenhance the precision of the estimates of group concentrations andthe exposure of individuals who carried instruments regularly mightalso be more precisely estimated.
5.
It was difficul't at .times to have volunteers carry instruments whentheir normal occupation required them, to carry other equipment. Tocover such occupations and, indeed, any occupational group for whichthe estimates of mean concentration was likely to be inadequate orbiased-by using the/volunteer' system of.sampling, adequate 'randomcollier1 .sampling was undertaken.
The volunteer system was in operation throughout the survey and wasmade possible largely through excellent co-operation from managementand men at Morrison Busty. '
3.2 Sampling and measuring .
Each sampling day a number of volunteers was issued with M.R.E.Gravimentric Samplers which were switched on at pit bottom and keptat the respective workplaces for the duration of the shift and"switched: off oh return to pit bottom.
During the shift an investigator travelled underground and visitedeach volunteer to give advice on instrument siting, to noteactivity of the volunteer and operations in progress and to takeventilation and temperature .measurements as required.
Because of the lay-out of faces (at that time) it was difficult toorganise sampling at the control point 25 yd from the face in thereturn road and during the survey only two control samples, bothon S.18 face, were taken.
3.3 Evaluation , '
Mass concentrations expressed as mg/m were obtained from theweights of the filter deposits (after the application of correctionsfor moisture content of filters) and the volumes of air sampled.
After 'evaluation at the colliery, filters were sent to the Instituteof Occupational" Medicine' for compositional analyses of the filterdeposits (Harrison, 1971)«
k. .RESULTS - ' , . . ' ' -• •\ , *. ' . • ' ' " ' '
4;1 Faceworkers ' '• •
Tables 3-13 are face summary charts describing faces and methodsof working, giving-details of seams and adjacent strata. Meanconcentrations of ash,'quartz and respirable dust obtained arearranged by occupational groups within face sites. Figure 1 showsthe location of the face sites at Morrison Busty.
.1.1 T.Q.2.'Face. Top-Section Busty Seam (Table 3).' The meanrespirable concentration of the eleven samples taken on this facewas 9*5 mg/m3 which was much higher than the previous survey (mean6*2 mg/m3).
.1.2 B.Q.6 Face. Bottom Section Busty Seam (Table *f). Only fivesamples were obtained, two on filling and three on preparationshifts, during a period when the face was being prepared for fullproduction.
6.
4.1.3 B.Q.27 Face. Bottom Section Busty Seam (Table 5). Eightsamples on this face gave the relatively high mean concentrationof 10-8 mg/m3. .
4.1.4 B.Q.26 Face. Bottom Section Busty Seam (Table 6).Eighteen samples were taken and gave a mean concentration of8'6 mg/m3.
4.1.5 B.Q.24 Face. Bottom Section Busty Seam (Table ?).. Thisface worked through an old pillar left by room and pillar working.As a result the roadways were already made and only the digger groupoperated. This reduced level of face activity was possiblyreflected in the mean concentration for eleven sampling shifts of5*0 mg/m3, the lowest face concentration recorded in the Busty Seam.
4.1.6 B.Q.25 Face. Bottom Section Busty Seam (Tables 8a and 8b).This face opened in April 1969 as a hand-filled face, but after amonth it was equipped with a plough and was worked in this fashionuntil it closed at the end of September 19&9. The change fromhandfilling to ploughing appeared effectively to halve the dustconcentration from 12*1 to 6*1 mg/m3. .
4.1.7 B.Q.5 Face., Bottom Section Busty Seam (Table 9). Althoughdust concentrations (mean 6*9 mg/m3) were lower than on most otherfaces in the Busty Seam, much of the dust was due to intakepollution which persisted, despite efforts by the colliery dustsuppression officer.
4.1.8 N9 Harvey Seam (Table 10). Because of the wet conditi9nson this face the face dust level (mean 2*5 mg/m3) was, as expected,low.
An extra make of water closed the face in May 1969*
4.1.9 N10 Face. Harvey Seam (Table 11). N10 Face was naturallywet throughout the survey and the mean concentration was relativelylow at 3*8 mg/m3.
4.1.10 N13 Face. Harvey Seam (Table 12). N13 was a dry face butdust levels (mean 2*7 mg/m3) were, nevertheless, also low. It isconsidered that the method of coal production (scraper-box) used onthis face assists in keeping dust concentrations in check.
4.1.11 S18 Face.' Brockwell Seam (Table 13). Although conditionson this face were naturally wet, dust concentrations were slightlyhigher (mean 4*1 mg/m3) and occasionally much higher than expected.
4.1.12 Preparation Shifts. Most of the preparation at the collierywas done during the production shift but there were, however, somepperations which could be completed only on preparation shifts whencoal was not being produced.
7.
Fifty-three samples in all were taken on such shifts in the Bustyand Harvey Seams and these are summarised in Table 14 below. NoBrockwell Seam results are shown as 318 Pace, the only face in theseam at the time, had no clear preparation, shift.
, TABLE 14
Preparation shift samples
1 "Respirable Dust Concentration (mg/m )
• Seam •
Busty
Harvey. . . . . -
All
at Site
- !• • • I1 i . 2 .I 4
. 2.9' (6)
1-2(6)
2-0(12)
i
2-8(1)
2.8(1)
i
_ t-r
(11)
1-9(9)
2-7(20)
6
5-2(3)
5 -2(3)
7
2-5(8)
2.4(9)
2-4(17)
All
3-0(25)
2-3(28)
2-6(53)
( ) denotes no. of samples
The mean concentration on preparation shifts was 2«6 mg/n(Table 17) similar to the 2«5 mg/m recorded previously (Bradley& Gibbon, 1971), but the point of most significance was possiblythat the highest concentrations occurred in the return advancedheadings (site 6) on the'Harvey Seam faces, in spite of thenaturally damp conditions existing in that seam.
4«1.1'5 Composition of Face Samples. There were minor variationsfrom seam to seam in the composition of samples, but overall, ashand quartz in ash contents of face samples (22«2 and 11«6 per centrespectively) were very similar to the corresponding values fromprevious analyses (liable 17). The mean concentrations of theseminerals, 1'04 mg/m" of ash and 0«12 mg/m of quartz, representedmarginal increases over concentrations given for 1968, but wereentirely duo to the corresponding increase in respirable dustconcentration over the same period.
8.
4.2 . Non-face samples
4.2.1 Development in Coal. Table 15 below summarises the twentyseven samples taken in coal developments.
TABLE 15
Development in Coal
Seam
OccupationO.G.S.N.
Mean Resp. Dust Cone.mg/m3
Ash Cone, mg/m
Quartz Cone, mg/m
Busty
Diggers Dev.F191
6-4(10)6-5*
1-36
0-23
Harvey
Diggers Dev.F191
4-5(9)6-1
0'96
0*1?
Brockwell
Diggers Dev.F191
6-2(8)6-4
1-33
0-24
All
5'7(2?)6-2
1-21
0-21
( ) denotes no. of samples* denotes standard deviation
The high ash concentrations recorded (3*80 mg/m ) in the Busty SeamB.Q.26 Development during the previous survey (Bradley& Gibbon, 1971 )werenot repeated either in the present Busty Seam developments or onB.Q.26 face during coal filling.
4.2.2 Stone Drifting. No stone drifting took place during thissurvey.
9.
4.2.3 Elsewhere Underground (Table 16). -.Details of the elsewhereunderground concentrations, mean, 2*9 mg/m are recorded in Table 16,
TABLE'16
Elsewhere Underground Concentrations
I
OGSN Occupation
HARVEY SEAM
E1 1 LoadersE20 Belt PatrolmenE54 Stonemen (out bye)E63 HaulageE?0 General Workers
E
BUSTY SEAM
E1 2 LoadersE21 Belt PatrolmenE53 Stonemen (out bye)E64 Haulage£69 General Workers
BROCKWELL SEAM
E13 LoadersE22 Belt Patrolmen 'E10' Storiemen (outbye)E?1 General Workers
ALL SEAMS
F60 Shotf irersF111 .Timber LeadersE28 Salvage "E29 . StonedustersE31 PipemenE34 MasonsE?3 Steel CheckersE?6 Deputies
No. ofSamples
31212
•114474
2131
1612 -1 .1
• 22
MeanConcentration
mg/m3
2-42-03-11-21-2
2-42-75-82'06-k
5-k0-62-83-5
2«81-12-82-96-83-15-10-6
4,2.4 Surface. The surface samples gave a mean concentration of0*7 mg/mJI
4.3 Relationship between return road and face concentrations
Only two samples were taken at the control point. Any estimate ofthe control point to face ratio based on so little information,must be regarded as unreliable.
10.
5. OBSERVATIONS AND CONCLUSIONS
During the period almost all occupation groups at l orrison Bustywere sampled, the main effort being directed to the face groups oncoal-getting shifts. Those groups which were open but unsampledhad been sampled during earlier surveys.
The principal observations from Tables 3 - 16 and this summary,Table 17 are as follows:
5.1 Respirable dust concentrations
The face mean concentration for coal-getting operation derived from390 sampling shifts was 5*1 mg/m3, the maximum value for any facebeing the 12*1 mg/m3 on B.Q.25 face in the Busty Seam.
There was an overall increase in mean concentration from 3*8 mg/min 1968 to *f*7 mg/m^ in the present survey.
5 . 2 Compositional analysis . . . . .
Although there were minor differences between seams regarding ashcontent, (see Table 17) varying between 18 per cent in the Brockwellseam and 27 per cent in the Harvey, the most striking difference wasbetween the 11 per cent ash in hand-filling .operations and the25 per cent during power-loading in the Busty Seam. Elsewhereunderground the mean ash content was .29 per cent. -.:'
The mean quartz content for' the colliery was fairly low^ 2*6 percent in sample, giving a mean quartz concentration .of' 0*12 mg/m3.Calcium and magnesium carbonate contents were low, except inelsewhere underground samples (possibly the effect of roadwaystone dusting). Iron content of samples was steady throughout atabout 9 per cent. , . ,
5.3 Manpower • • • • . , . • •
With the run-down in manpower over the previous two years, and' theconcentration of production into a few areas (mainly in the Harveyand Busty seams) of the colliery it was necessary to review thestructure of elsewhere underground occupational grouping. As; aresult, all 29 elsewhere groups have been closed and replaced bythe 5 new groups listed below. - .
E79 Conveying (including stonedusters, pipemen) ))
E80 Haulage and General workers )
E81 Stonemen (outbye) { All seams:^ All districts
E82 Tradesmen (outbye and surface) and other ^officials I
E83 Deputies and Overmen .
(a) Single Unit
Tl
o
(b) Double Unit; ventilated through road at face end.
... .IT.; - 7
\v8
2 i*— —^ 1
4 ->i _ _ _ _ _ _ _ _ _ _ _n j~ -
/\.
01 1
[c) Double Unit; ventilated through mi
Ti5~\ b
i
1NX
8ii
9 i
Site Location
0 Intake roadway
1 Intake ripping
2. Intake Advanced heading
3 Intake stable
4 Face
47
/•— s
I9
d r
T
*\
I
0
i ,
4 ~>
oad.
_3 1 1 «i
— y 4 >1Ii
'
Site Location
5 Return stable
6 Return Advanced heading
7 Return ripping
8 Control position (23m)
9 Return roadway
6 "
7
i8
9i
f6
8
9
FIGURE 1. Location of Face Sites
FIGURE 1.
Seam
TopBusty
W fi T5IN t\J . J3 .
CoalRankCode
301
%Carbon
88
FaceStarting
Date
July1968
FaceFinishing
Date
• April1969
TABLE 3
FAGS SUMMARY CHART Charley Noth District T Q.2 FACE
Type of Face: Single unit advancing longwall
Length:
Shift Cycle
l£)4m Height: 0»91m
: Two production, one preparation*
1
Roof: Si Its tone
Seain: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*6m-Vs
Temperatures: 17°C dry, Rel. Humidity: 84$
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHE&D
Hand filled
Holman compressed airdrilling machine,pneumatic picks
¥et drillingWater ampoules
3 «66 x 2«44marched girders
FACE
Hand filled (digging)
Pneumatic picks
.Short hole infusion
¥ood props, l*83m corrugated steel bars, wood chocks with Hecorelease .
RHTURN ROADHEAD
Hand filled
Eolman compressed airdrilling machine,pneumatic picks
¥et drillingWater ampoules
2-74 x 2«13marched girders
REMARKS
)
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation rag/up
Mean Resp. DustConcentration forSite mg/m^
Ash
Composition Gor/c3
1
Face Beltmen
F.56
2»7*(1)
2-7(1)-
0»42mg/nx |
by !Quartz i
Site Cone, i 0-03mg/a3
IP
Face StonemenF.48
2-9(1)
—2-9(1)
—
0-75
0-06
4
Diggers
F.63
10-2(9)3-6
Timber leadersF.lll
10-0(1)
10-2do)3-3
1«19
0-10
4P
Pullers
F.35
4.4(1)
4.4(1)-
0'99
0-08
i
7
Face Stonemen
F.48
3-9(1)
3-9(1)
1*01
0;08
8
ControlPosition
*2»7 Mean Respirable Dust Concentration(l) No. of Samples- Standard Deviation
P = Preparation Shift
TABLE 3
TABLE k
FACE SUMMARY CHARTCharley North District Bg6_FACE
Seam
Busty02: 11
N.C.B.GoalRankCode
301 a
Carbon%
88
FaceStartingDate
October1970
FaceFinishingDate
Type of Face: Single unit advancing longwall
Length: 120m Height: 0'91m
Shift Cycle: One production shift per day
Roof: Siltstone
Seam:
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*70 m /s
Temperature: 17*0 C '
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman C.A.drilling machinePneumatic pick
Wet drillingWater ampoules
3*66m x 2*Mfmarched girders
FACE
Hand filled (digging)
Pneumatic picks
Short hole infusion
Dowty props, 1*82m steel bars,Wood chocks
RETURN ROADHEAD
Hand filled
Holman C.A.drilling machinepneumatic pick
Wet drillingWater ampoules
Arched girders
REMARKS
Face worked intermittently
from October 1969
/
SITE
Occupation
O.G.S.N.
Mean esp. DustConcentration forOccupation mg/m3
Mean Resp. DustConcentration forSite mg/m3
AshCone.
Composition mg/m3bySite Quartz
Cone.mg/m3
1P
Face Stonemen
F*t8
3'2 *(1)
—
3*2(1)
—
0*83
0-07
<t
Diggers
F63
8*0(2)3-5
8«o(2)3-5
0«53
0-06
7P
Diggers
F63
if 2(1)
-
FaceStonemen
Fk&
0-8(1)
-
2*5(2)2»*f
0- 6
O-O^f
8
ControlPosition
*For footnotes, see Table 3
TABLE k
Seam
Busty02:411
N.C.B.CoalRankCode
301 a
«g7°Carbon
88
PaceStarting
Date
February1969
PaceFinishing
Date
June1969
TABLE 5
FACE SUMMARY CHART
Charley North District B.Q.27 PACE
Type of Pace:
Length:
Shift Cycle:
Single unit longwall advancing
35 m Height: 0-91 m
1 Production
Roof: Siltstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2«3 n?/s
Temperatures: 18°C
SITE
Method of Working
Machine Details
Dust _Suppression
Supports
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration for0 c cupat i on mg/nr
Mean Resp. DustConcentration forSite mg/m^
AshComposition Cone.
by mg/cK_- Site Quartz
Cone.mg/m5
INTAKE ROADHEAD
Hand filled
Holman compressed air drillingmachine
Pneumatic pick
¥et drilling"Water ampoules
3-66 m x 2-44 mArch girders
PACE
Hand filled (digging)
Pneumatic picks
Short hole infusion
Wood props, 1*82 m corrugated steel bars,wood chocks with Meco release
i !1P
Face Stonemen
F48
1-3 *(2)1-1
1.3*(2)1-1
0-34
0.03
4
Diggers
P63
10-6(7)2-8
10«6(7)2-8
1-09
0*09
4P
Pullers
F35
1-0(2)0-7
1-0(2)0-7
0*23
0«02
RETURN ROADHEAD
Hand filled
Holman compressed air drillingmachine
Pneumatic pick
Wet drillingWater ampoules
Arch girders
7
PaceStonemenF48
11-9(D
11-9(1)
3.09
0-25
7P
FaceStonemenP48
1-4(2)0-6
1«4(2)0-6
0-36
0«03
REMARKS
i8
ControlPosition :
.
For footnotes, see Table 3 TABLE 5
TABLE 6
FACE SUMMARY CHART Charley North District 3.Q.26 FACj
Seam
Busty02:411
N.C.B.CoalRankCode
301a
%Carbon
88
FaceStartingDate
November1968
FaceFinishingDate
Type of Face:
Length: 55m
Shift Cycle:
iSingle unit longwall advancing
Height: O90m
2 Production, 1 Preparation
Roof: Siltstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2«0m5/s
Temperatures : 18°C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman compressed air drilling machine,pneumatic pick
Wet drilling, water ampoules
3 °6 6m x 2° 44m arch girders
FACE
Hand filled (digging)
I7'neumatic picks
Short hole infusion
Dowty props, l*82m corrugated steel bars,wood chocks with Heco release .
RETURN ROADHEAD
Hand filled
Holman compressed air drilling machine,Pneumatic picks
Wet drilling, water ampoules
Arch girders
REMARKS
SITE
Occupation
O.G-.S.N.
Mean Resp. DustConcentration forOccupation mg/m3
Mean Resp. DustConcentration forSite mg/nP*
AshComposition ^OI)C4
mg/nP
Quartzsite Cone.
mg/nP
1
Face Stonemen
F.48
2-7*(1)
-
Face Beltmen
P. 56
2-9(1)
-2-8(2)
L 0*1
0-58
0-04
IP
Face Stonemen
F.48
1*1(1)
-1-1(1)
-
0-29
0-02
4
Diggers
F.63
9-2(15)2-7
9-2(15)2-7
0-95
0*07
4P
Pullers BeltExtenders
F.35 F.85
3-4 0-6(1) (1)- i _
2-0(2)2-0
0-35
0-03
7
Face Stonemen
F.48
11-7(1)
11-7(1)
3-04
0-25
7P
Face Stonemen
F.48
3-9(1)
Borers
F.128
0-9(1)
2-4(2)2-1
0-51
0-05
8
Position
*For footnotes, see Table 3
TABLE 6
TABLE 7
FACE SUMMARY CHART 5th West District BQ2*f FACE
Seam
Busty02: 11
N C BCoalRankCode
301 a
Carbon%
88
FaceStartingDate
May1969
FaceFinishing
Date
July1969
Type of Face: Single unit advancing longwall
Length: 70m Height: 0*91m
Shift Cycle: 2 Production; 1 Preparation
.Roof: Siltstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*0
Temperature: 18 C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Only., cleaning and resettingof existing roadway
Holman C.A. drillingmachinePneumatic pick
Wet drillingWater ampoules
3°66 x 2'Mf m• arched girders
FACE
Hand filled (digging)
Pneumatic picks
Short-hole infusion.
Dowty props, 1'82m corrugated steel bars,wood chocks
RETURN ROADHEAD
Only enlarging existing, roadway"
Holman C.A. drilling machinePneumatic pick
Wet drillingWater ampoules
Arched girders
REMARKS
'
SITE
OccupationO.G.S.N.
Mean Resp. DustConcentration forOccupation / 3r mg/m
Mean Resp. DustConcentration forSite / 3mg/m
AshCone.
Composition mg/m3bySite Quartz
Cone.mg/m3
If
DiggersF12
5'0 *(11)1»9
5*0 *(11)1*9
0'3k
O'Ok
8
ControlPosition
*For footnotes see Table 3
TABLE 7
TABLE 8(a)
FACE SUMMARY CHART Charley North District Bj§2jp_FACE
Seam
Busty02:V11
N O B
CoalHankCode
301 a
%Carbon
88
FaceStartingDate
April1969
FaceFinishingDate
May1969
Type of Face: Single unit longwall advancing
Length: 75m Height O90m
Shift Cycle: 2 Production, 1 Preparation
Eoof: Siltstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*0 m /s
Temperatures: 19 C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman compressed air drillingmachine, pneumatic pick
Wet drilling, water ampoules
3* 66m x 2*Mfm arch girders
FACE
Hand filled (digging)
Pneumatic picks
Short hole infusion
Hydraulic props, 1*82 m bars, wood chocks
RETURN ROADHEAD
Hand filled
Holman compressed air drillingmachine, pneumatic pick
Wet drilling, water : ampoules
Arch girders :
REMARKS
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation mg/n)3
Mean Resp. DustConcentration forSite / 3mg/m
AshCone.
Composition mg/m3bySite Quartz
Cone.mg/m3
1
Face Beltmen
F56
12-6 *(1)
—
Loaders
E12
3-6(1)
—
8'1 *(2)6'k
1-96
0*1?
.
k
Diggers
F63
13*2CO0-5
13*2CO0*5
1*36
0*11
7
Face Stonemen
F48
15*9(1)
—
15-9(D-
V13
0-33
8
ControlPosition
* For footnotes see Table 3
TABLE 8(a)
TABLE 8(b)
FACE SUMMARY CHART Charley North District B.Q.25 FACE
Seam
Busty02:V11
N C.BCoalRankCode
301 a
yCarbon
88
FaceStartingDate
May1969
FaceFinishingDate
September1969
Type of Face: Single unit longwall advancing
Length: 75m Height: 0*90m
Shift Cycle: 2 Production, 1 Preparation
Roof: Siltstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2'0 m3/s
Temperatures: 19°C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman compressed air drillingmachine, pneumatic pick
Wet drilling, water ampoules
3* 66m x 2*Mtm arch girders
FACE
Power loaded
97 kW Reischaken plough
Hydraulic props, Dowty props
RETURN ROADHEAD
Hand filled
Holman compressed airdrilling machine,pneumatic pick
Wet drilling, Water ampoules
Arch girders
REMARKS
I
SITE
Occupation
O.G.S.N.
Mean esp. DustConcentration forOccupation / 3r mg/m
Mean Resp. DustConcentration forSite . 3mg/m
AshCone.
Composition mg/m3bySite Quartz
Cone.mg/m3
1
FaceStonemen
Fif8
if 5 *(6)3-6
FaceBeltmenF56
1-8(2)0-9
3*8 *(8)3-3
0'89
0-0?
1P
FaceStonemen
F48
7'5(1)
-
7-5(1)-
1-95
0-16
k
Shotfirers
F60
1-2(1)
-
Face Team
F181
6-6(32)3-9
Face Fitters
F190 ,
6*1(6)3-7
Deputies
E76
5-1(2)0-3
6-3(VI)3-8
1-52
0*15
kP
Face Team
F181
if- 8(V)0-9
V»8W0-9
T21
0*12
7
Face Stonemen
F48
8-0(4)2-7
8*0W2-7
2' 08
0-17
8
Control 'Position
;
!
* For footnotes, see Table 3
TABLE 8(b)
TABLE 9
FACE SUMMARY CHART
Seam
Busty02:411
N C BCoalRankCode
301 a
Carbon%
88
FaceStartingDate
January1970
FaceFinishingDate
Type of Face: Single unit advancing longwall
Length: 95m Height: O'?8m
Shift Cycle: 2 Production shifts
Charley North District BQ5 FACE
Roof: Siltstone
Seam: coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*8
I Temperature : 1 9°C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman drilling machine
Wet drilling, short holeinfusion.., hand spray,water ampoules
3 '66 x 2* Mtm arches
FACE
Power loaded
Plough
Seven mist sprays along A.F.C.
Westphalia self -advancing supports
IRETURN ROADHEAD
Hand filledfc
Holman drilling machine
Wet drilling,! waterinfusion , sprays onmini- conveyor',i
/3'66m x 2'kkm\ arches
REMARKS;
i
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation / 3mg/m
Mean Resp. DustConcentration forSite / 3mg/m
AshComposition Cone.
by mg/m3Site
QuartzCone.mg/m3
1
Face Stonemen
F48
9.9 *
(5)1-4
9.9 *
(5)vif
2'57
0-21
if
TimberLeadersF111
k'6(1)
-
FaceTeamF181
6-6(26)2-8
FaceFittersF190
2*k(2)1-3
6-3(29)3-3
1-57
0-15
kP ,
TimberLeadersF111
4-5(1)
-
FaceTeamF181
2'7(1)
-
3-6(2)
—
0'90
0'08
7
FaceStonemenFkS
8-4(2)2-9
8-4(2)2'9
2*18
0'18
7P
' FaceStonemenF48
3'8(D-
3-8(1)-
0-99
0-08j
8
ControlPosition
i
.
*For footnotes, see Table 3
TABLE 9
TABLE 10
FACE SUMMARY CHART N9 FACE
Seam
Harvey02:321
N C BCoalRankCode
301 b
c/0
86
FaceStartingDate
February1968
FaceFinishingDate
May1969
Type of Face: Double unit longwall Advancing
Length: 1?8m Height: 0'56m
Shift Cycle: 2 Production, 1 Preparation
Roof: Sandstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: m3/s
Temperatures: 17°C
SITE
Method of V/orking
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
Hand filled
Holman drilling machine,pneumatic picks
Wet drilling, water ampoules
3* 66m x 2'kkm arch girders
FACE
Power loaded
N.C.B. scraper box75 kW hoist
Sprays at face transfer point
Hydraulic chocks, Dobson propsand crowns
RETURN
MOTHER GATE
Hand filled
ROADHEAD
LEFT TAILGATE
Atlas Copco shovel
Holman drilling machine,pneumatic picks
Wet drilling, water ampoules
2'7*fm x 2* 30march girders
3'66m x 2'M*march girders
REMARKS
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation / 3
Mean Resp. DustConcentration for
mg/nr
AshCone .
Composition mg/m3bySite Quartz
Cone.mg/m3
1
FaceBeltmenF55
2-2*(2)1-8
Borers
F128
0-9(1)
—
Loaders
E11
0»9(1)
-
1*5*(Vl.i*
0'27
0-03
2
- FaceStonemenF1*t8
3'6(3)1-3
3-6(3)1-3
1*01
0*17
2P
FaceStonemen
F1*f8
2-8(1)
-
2-8(1)-
0'79
0*13
*t
FaceStonemenF1*f8
3-6(2)0*9
ScraperAttendants
Fl6*t
1-8(13)1'0
2-1(15)1'0
0-62
0-08
*fP
ScraperAttendants
Fl6 f
1-7(3)o«9
1-7(3)0-9
0-50
0-07
6
FaceStonemenF1W
6-0 .(1)
-
6'0(1)-
1*69
0-28
6P
FaceStonemen
F1*t8
1*4(1)
-
1-*f(1)
-
0«39
0-06
7
FaceStonemenF148
V6(2)V3
TimberLeadersF111
1-6(1)
-
3-6(3)3-5
0-97
0«13
7P
FaceStonemen
F1*f8
1'2( f)0*2
1'2CO0-2
0-3
0'06
8
ControlPosition
* For footnotes, see Table 3
TABLE 10
TABLE 11
FACE SUMMARY CHART N10 FACE
Seam
Harvey02:321
N.C.B.CoalRankCode
301 b
%Carbon ,j
86
FaceStartingDate
September1969
FaceFinishingDate
Type of Face: Double unit longwall advancing
Length: 200m Height: 0'56m
Shift Cycle: Production, 1 Preparation
Roof: Sandstone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*2 m /s
Temperatures: 19 C Rel. Humidity
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
LEFT TAIL GATE
Atlas Copco shovel
Holman drilling machine,pneumatic picks
Wet drilling, water ampoules
3* 66m x 2'kkm arch girders
FACE
Power loaded
N.C.B. scraper box75 kW hoist
Sprays at face transfer points
Hydraulic chocks, Dobson propsand crowns
RETURN ROADHEAD
MAIN GATE RIGHT TAIL GATE
Hand filled
Holman drilling machine,pneumatic picks
Wet drilling, water ampoules
3» 66m x 2'¥fmarch girders
2'7ifm x 2'30march girders
REMARKS
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation / 3
ing/m"
Mean Resp. DustConcentration forSite / 3mg/m
AshCone,
Composition mg/m3bySite Quartz
Cone.mg/m3
1
FaceBeltmenF55
6-0*(3)7-5
FaceStonemenF148
2-4(4)2-6
3-9*(7)5-1
0-92
0-13
1P
FaceStonemenF148
1-6(3)0-5
Stonemen(outbye)E54
9-6(1)
—
1-4(4)0-5
0-61
0-09
2
FaceBeltmenF55
3-0(1)
—3-0(1)_
0-53
0-05
4
Shot-firersF60
1-5(1)
—
ScraperAtts.F164
3-3(24)1-6
FaceFittersF190
2-8(6)1-5
Deputies
E76
4-8(3)1-7
3'3(34)1-6
0-89
0-11
4P
FaceStonemenF148
0-6(1)-
ScraperAtts.F164
5'5(1)-.
3-0(2)3-6
0-87
0*13
6
FaceStonemenF148
5-4(2)0-9
5-4'(2)0-9
1-52
0-25
7
FaceStonemenF148
4-9(15)2-2
4-9(15)2-2
1-38
0-23
7P
FaceStonemenF148
3-4(4)1-9
"*5 • il.
C *+}1-9
0-96
0-16
8
ControlPosition
i
* For footnotes, see Table 3
TABLE 11
TABLE 12
FACE SUMMARY CHART NI3..FACE
Seam
Harvey02 321
N C BCoalRankCode
301 b
#Carbon
86
FaceStartingDate
March1969
j
FaceFinishingDate
Type of Face: Double unit longwall Advancing
Length: 205m Height: 0-6lm
Shift Cycle: 3 Production, 1 Preparation
Roof: Sands tone
Seam: Coal
Floor: Argillaceous seatearth
Average Ventilation Quantity
Temperatures: 21 °C Rel.
L.H.S.•R.H.S .
Humidity
1-6 3/V5"/8
** :
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
CENTRE GATE
Hand filled
Holman drillingmachine ,pneumatic picks
Wet drilling,Water ampoules
2'7km x 2'30march girders
FACE
Power loaded
N.C.B. scraper box75 kW hoist
Sprays at face transfer point
Hydraulic chocks, Dobson props and crowns
RETURN ROADHEAD
LEFT TAIL .GATE
Atlas Copco shovel
RIGHT TAIL GATE
Hand filled
Holman drilling machine,pneumatic picks
Wet drilling, water ampoules
3*66m x 2'kkmarch girders
2*7 m x 2' 30march girders
REMARKS
>
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation / 3mg/m
Mean Resp. DustConcentration forSite , 3mg/m
AshCone,
Composition mg/m^bySite Quartz
Cone .mg/m^
1
FaceBelt-menF55
2*7*(3)1-7
FaceStone-menF148
2-5(8)1-1
2-5*(11)1-3
0-63
0'09
1P
FaceStone-menF1*t8
0*8(2)O'O
0*8(2)0-0
0-22
0-0*f
k
Shot-firers
F6o
2-7(1) '
—
ScraperAttnds.
Fl6*t
2-5(23)1-2
FaceFitters
F190
1-if(6)1-1.
OtherOfficials
E66
1-1(1)
—
Deputies
E76
k'k(V3-7
2-5(35)1-7
0-68
0-09
ifP
Shot-firers
F60
1-0(1)
—
ScraperAttnds .
F164
1-8(2)1-0
Deputies
E76
1-2(1)
—
1-4COo«8
0-36
0-05
6
FaceStone-menF1*t8
5-6(1)
—
5-6(1)M
1-57
0-26
6P
FaceStone-menF148
7'2(2)0-9
7-2(2)0-9
2-02
0-33
7
FaceBelt-menF55
3'6(2)0'3
FaceStone-menF1*f8
3-0(9)1-1
3-1(11)1-1
0-81
0-12
7P
FaceStone- 'menF1 8
3'3(1)
—
3-3(1)^
0-93
0-15
8
ControlPosition
For footnotes, see Table 3 TABLE 12
TABLE 13
FACE SUMMARY CHART S18 FACE
Seam
Brockwell02: V?0
N.C.B.CoalRankCode
301 a
%Carbon
90
FaceStartingDate
May1969
FaceFinishingDate
Type of Face: Double unit advancing longwall
Length: 190m. Height: 0'66m
Shift cycle: 3 Production shifts
Roof: Siltstone
Seam:
Floor: Argillaceous seatearth
Average Ventilation Quantity: 2*6 m /s
Temperature: 19 C
SITE
Method of Working
Machine Details
Dust Suppression
Supports
INTAKE ROADHEAD
LEFT TAILGATE
Fired, loaded
Atlas Copco ShovelHolman drillPneumatic Pick
Wet drillingWater ampoule
3* 66m x 2*M+m arches
FACE
Power loaded
N.C.B. Scraper Box75 kW Hoist
Face naturally wet
Hydraulic chocksDowty props and crowns
RETURN ROADHEADS
CENTRE GATE
Hand shovels
Holman drillPneumatic pick
Wet drillingWater ampoules
3-66 x 2'Mfmarches
RIGHT HAND TAILGATE
Hand shovels
Holman drillPneumatic pick
Wet drillingWater ampoules
2-7 x 2-30marches
REMARKS
SITE
Occupation
O.G.S.N.
Mean Resp. DustConcentration forOccupation / 3y mg/m
Mean Resp. DustConcentration forSite / 3mg/m
AshCone.
Composition mg/m3bySite Quartz
Cone.mg/m3
1
FaceStonemen
F53
k'6*(28)2'0
FaceBeltmenF57
2-5(1)
-
FaceFittersF190
1-6(1)
-
V4 *(30)2-0
0-75
0-08
k
FaceBeltmenF57
1-7(1)-
Borers
F128
2-6(2)1'1
ScraperAttendsF186
V3(49)1-8
FaceFittersF190
2-9(3)0-5
Deputies
E76
3-1(3)0-8
if 0(58)1-9
0'72
0'07
6
FaceBeltmenF57
4*1(3)1-8
4-1(3)1-8
0-75
0-07
7
FaceStonemen
F53
4' 0(D-
FaceBeltmenF57
2-8(6)1-5
FaceFittersF190
5'6(1)
-
1
Loaders
E13
6-k(2)0*6
3-9do)2-0
0'69
0-06
8 :
ControlPosition
7-8(2)3-3
0*90
0-09
* For footnotes, see Table 3
TABLE 13
TABLE 17
Summary of Dust Concentrations and Composition by Face and General Environment
Class of Environment
Mechanised Filling
Hand Filling
Preparation
Development in Coal
COALFACE
Stone Drifting
Elsewhere Underground
Surface
Location
Seam District
Busty CharleyNorth
Face
B.Q.5
B.Q.25
Seam Mean
Harvey N. 9
N. 10
N. 13
Seam Mean
Brockwell S. 18
Seam Mean
All Seams Mean
Busty CharleyNorth
5th West
T.Q.2
B.Q.6
B.Q.27
B.Q.26
B.Q.25
B.Q.24
Seam Mean
All Seams Mean
ALL Seams
All Seams
All Seams
All Seams
All Seams
MeanResp.DustCone,
mg/m
6-9 (36)
6-1 (53)6'4 (89)2-5 (26)3-8 (59)2-7 (58)3-1 (143)4-1 (101)4*1 (101)
4-3 (333)9-5 (11)8-0 (2)10-8 (8)8-6 (18)
12*1 (7)5-0 (11)8-8 (57)8-8 (57)2-6 (53)
5'7 (27)4-7 (470)
3-8 +(0)
2-9 (62)
0-7 (24)
Con.Pos.Face
Ratio
1-90
Mean
Ash
mg/m
1-73
1-48
1'570-68T02
0-72
0'830-730-731-01
1-150-551-331-06
2'00
0'341-01
1-01
0*681-21
1'04
0-87"1"-
0-830-11
Cone.
Quartz
mg/m
0-16
0'14
0-15
0'09
0-14
0-10
0-11
0'07
0-070*12
0*090*06
0-11
0-09
0-170-04o«090*09
0*080-21
0-12
0«09+
-
0-07
0*01
Ashin
Sample
24»6
26*9
17*8
23-5
11-511-526' 1
21 '3
22-2
23-5+'-
28-716-4
Quartz
9. if
13'8
10-1
11-5
9-09-012-2
17-411-610*5*-
8-38-4
Com]
Kaolin
31 '0
16-5
27'5
23-7
33-7
33-7
22-7
25-724-944« 5+
-
31*0
17*6
josition of
Mica
17-7
16'2
12-715-6
11-8
11-8
13-525'0
15-4
12-6+
-
9.90-2
Ash
Ca.Mg.Garbs.
9-6
6-3
3-86-8
7'7
7'79. if
3-87-0
3*9+
-
16-5
IronCarb,
7*9
9-9
8-7
9-0
if. if
4-48-67-6
8-77-o+
-7-1
+ Values for 1968 Figures in brackets denote the number of samples
TABLE 17
R E F E R E N C E S
Ashford, J.R. & Smith, P.H. (1956). The allocation of samplingeffort in environmental surveys. N.C.B. Report No. SO 370/ER/28.
Bradley, A. & Gibbon, E.(l97l). Environmental tfonditions atMorrison Busty Colliery 1968, Institute of Occupational Medicine.Report No. TM/71/18.
Harrison, G.E. (1971). Analysis of gravimetric filters taken atMorrison Busty Colliery. Institute of Occupational Medicine.File BP31121.
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(A20115) IOM (R) ReportCov art 3/15/06 12:32 PM Page 2
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