MAHADEOPURI MINE•WESTERN COALFIELDS LIMITED

•PENCH AREAPrepared by.1)Shri Bambhaniya Suraj Manajibhai(BE MINING ENGINEER)2)Shri Chaudhari Haresh Bhagvanbhai(BE MINING ENGINEER)

GENRAL INFORMATION OF MAHADEVPURI MINE

General Information :- Latitude :-22°16’96’’

Longitude :-480°46’41’’

Name of Mine :- Mahadeopuri Mine WCL-Pench Area Parasia,Chindwara, (M.P)

Name of Manager :- Shri S.M.Jaiswal

1. This mine having two Incline, one is used for haulage roadways and other as traveling road ways,

2. Coal is transported from underground to surface with the help of direct haulage 3. Coal produced is transported to Sorani Thermal power station either by road or

by railways near by board gauge riding4. Daily out put is 250 tones5. It is situated near half km from Parasiya and about 26 km from Chhindwara

GEOLOGY

Mahadeopuri project is a part of Sial Ghogri Block, within this were 23 bore hole with a meterage of 4630mts. Covered by Deccan trap Basalt

Regional Geology :-

AGE PROMOTION THICKNESS IN METERS MINIMUM

THICKNESS IN METERS MAXIMUM

Sub Recent Soil 0.50 8.50

Upper eretaceous to Eosins

Decen traps with interppean beds

20.50 87.07

Jurassia Jabalpur Unconformity

0.60 14.77

Permian Motors Barakar

12.4758.20

143.30140.40

Lower Permian Talchirs 7.60

METHOD OF WORKING

Board & pillar with panel system

Presently there is a section/district

Number of seam :II (A + B) seam-21D Section

Mine OpeningsMODE NAME OF

ENTRYSIZE W x H GRADIENT LENGHTH/

DEPTHPURPOSE

Incline No.1 Incline 4.27x2.40m. 1 in 5 100m Fan traveling

Incline No.2 Incline 4.27x2.40m. 1 in 5 100m Haulage

Shaft Air Shaft 5.70m. Vertical 36.3m Intake

DETAILS OF SEAM

1) I (A + B) Seam top seam-Maximum working have been done.

2) I C Seam middle –working have been done.

3) II (A + B) Bottom seam –Presently working is being done.

Sr.No Seam Degree of Gassiness

Average Thickness

Gradient

Gallery Size W x H(m)

RMR

1 I (A + B) I 2.49 1 in 8.24 4.20 x 2.20

44

2 I C I 1.85 1 In 8.24 4.20 x 2.20

40

3 II (A + B) I 2.01 1 in 8.24 4.20 x 2.20

36.45

WORKING DIAGRAM OF MAHADEOPURI MINE

AIR CIRCUIT DIAGRAM OF MAHADEOPURI MINE

HAULAGE SYSTEM

1. Surface haulage

2. Endless haulage in 8L/MD

3. Direct haulage 6L/21D

Main surface haulage :

Gradient of Incline :1 in 8

Length of Incline :2.75m

Engine :- 1.Power :- 120KW

2.Moter installed : 100KW/550V

3.Rope Length :- 1000m/800m

4.Rope size :- 26mm

5.Rope speed :- 2.5meter per second

6.Drive RPM :- 960RPM

7.Date of installation :- July-1990

Safety Features In Haulage :- 1) Brecks

2) Rope Winding Pulley 3) Signaling System

4) Run Away Switch 5) Stop Bock 6) Rope Guide Pulley 7) Track Fish Plate 8) Zaje Rail 9) Back Stay (Kutta)10)Showman Clips11) Man Holes12) Safety Hook13) Rope kaple

DETAILS OF SDL

1.Their are used side loaders in conjunction with coal tube. Total 3nos.

2. Remote control operation with pilot core circuit diode and resistance,10W ,

300HM fitted in gate end box this circuit is completed by foot switch and push.

3. Bottom assembly operated by the operator, light fitting are provided in rear and at

front of the machines.

4. Audio visual alarm has been provided in each and every machine

5. In Addition to this going bell is also fitted with machines.

DRILLING

1. Drilling is done by 1.5HP, 125V, 450RPM(CHANDA RANA) coal drill machine

2. Gallery size :- 4.2m x 3m

3. Drill hole :- 12holes in are face

4. Drill hole Length :- 1.5m

5.Drill hole diameter:- 34-36mm

6.Drilling pattern:-Wedge cut

BLASTING

Blasting is done with the help of the(Copper tube) Electric delay detonator

Delay detonator no. 1,2,3, of 25ms are used.

EXPLOSIVE

P5 permitted explosive are used of class-II

Slurry type explosive

Cartridge :- 1) Diameter - 32mm 2) Weight - 185gram 3) Per hole used cartridge is 3nos 4) Cartridge and other stoming material for 1 face blasting …………… approx. 6kg explosive charge.

SYSTEMATIC SUPPORT RULES (SSR)1 SSR under regulation 108 of the coal mines regulation 1957 for development working

2 This is based on the RMR of roof rock of Seam

3 The roof shall be supported by full column ground roof bolts with resin installed at maximum interval of 1.0m in the same row(four bolts in a row)

4 The distance between the bolts and the side pillar shall not be more than 0.6m

5 Spacing between the two rows shall not be more than 1.0m

6 The bolts in a row shall be strengthened by used of W strap/steel channels of suitable specification if required.

7 Junction shall be supported by rows of bolts as specified for those of development working within 10m

8 The junction shall be reduced to 0.75m in case of resin grouted bolts and 0.65m in case of cement grouted bolts to accommodate 25% extra support.

9 Vertical props at intervals not exceeding 1.2m with suitable laggings put tightly against the side of pillar.

10 The props may be set in recesses in floor and roof close to the side.

11 All faults, visible slips, breaks and other geological disturbances in the roof shall be supported by cogs at intervals of 2.4m on either side of such disturbances and with crossbars across there a interval not exceeding 1.2m

OPEN CAST MINE BLASTING AT BADKUHI MINES

1. Visit to Badkuhi open cast mines dip hole blasting on date :-19/12/2016

2. Blasting of 100 holes at 14:00

a) Burden width is 4.5m & spacing width is 4m

b) Drilling in black shale

c) Drill by pneumatic machine of tier mounted

d) Specification of drill hole :

1)hole diameter :15omm

2)hole depth :6m

e) Specification of explosive :

1) They are two type of explosive are used 1.booster 2.colum explosive

2) The diameter pf explosive is 125mm & weight is 6.25kg

3) The explosive is class 2 type and division 6

4)Company of explosive manufacture is Shakti column,UN class-1

f) Tpyes of detonator are used in Badkuhi mines

1)Nonel –Electric detonator(NONEL)

2)DTH(down through hole & TLD(Tronx line delay)

3)DTH is 8 to 10 mlenght by shock tube

4)Delay time is 250ms of allumium tube & 25ms of plastic tube

g) Electric detonator for ignition shock convert at the end of circuit

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