Underground Coal Mine Regulations1957(CMR)

8/16/2019 Underground Coal Mine Regulations1957(CMR)

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Regulation re&uired 'or sometechnology developments

Means o' ccess and *gress

+ransport o' Men and Materials-,inding in sha'ts

+ransport o' Men and Materials .aulage

Mine ,or/ings


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1 Means o' ccess and *gress• Outlets from a mine• No person shall be employed, or be permitted to enter or remain for purposes of employment, in a

belowground, unless the working is provided with at least two shafts, inclines or other outlets to th• Suitable arrangements shall be made for persons to descend and ascend by each of such shafts, inc

• where the shaft is more than 30 metres in depth, such arrangements shall be by mechanical meansmechanical equipment used for the purpose shall be to installed and maintained as to be constantlyuse. n case of a doubt as to whether any such arrangement is suitable or not it shall be referred to nspector for decision

• Such shafts, inclines or outlets shall not be less than "3.# metres distant from one another at any pshall be connected with the other by means of a walkable passage, not less than ".$ metres high ".through the workings belowground that are being served by such shafts, inclines or outlets.

• %he foregoing provisions of this regulation with respect to shafts, inclines and outlets shall not app

'a( to a shaft which is being sunk or to an incline or outlet which is being made)

'b( to any working for the purpose of making a connection between two or more shafts, inclines o

'c( to any working for the sole purpose of searching for or proving minerals)

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• Working shafts :-

• Every shaft in use or in course of being sunk and every incline or other ou

made and kept secure• Every shaft in the course of being sank shall be provided with a permanen

concrete or masonry, which shall at no time be more than si* metres from the shaft+

• Every shaft regularly used for lowering and raising persons or materials, inseeps out of the strata shall be provided with water garlands or other meanand conducting away seepage water.

• %he top, all insets and bottom of every working shaft and the sump thereoclear and free from loose materials, tools and debris


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0 +ransport o' Men and Materials ,inding in sha'

• ppointment, etc., of winding enginemen

•

New winding installations• !onstruction and installation of winding equipment

• -ittings of winding engines

• Shaft fittings

• an winding

• ulti&decks

• /inding of material


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,inding in sin/ing sha'ts

• t every shaft in the course of being sunk, where a winding engine is use th provisions shall have effect, namely +

'"( f the shaft e*ceeds # metres in depth, there shall be provided for each b

other means of conveyance a detaching&hook between the centre of the hole fthe detaching&hook to the rope shackle and the detaching bell or plate, when t

other means of conveyance is at the tope landing, there shall be a clear over&r

not less than 3.1 metres.

'2( /here the shaft e*ceeds "#0 metres in depth

'a( the bucket or other means of conveyance, when used for lowering or raisishall be provided with sufficient cover overhead for protection from things fa

the shaft) and

'b( these shall be provided for each bucket or other means of conveyance a su

number of guides which shall be kept e*tended to within 22.# metres of the sh

at all times when sinking is in progress


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• recautions a'ter recapping

• *2amination o' 3inding e&uipment

•

4ates and 'ences• uties o' persons riding or 3or/ing in sha'ts

• 4eneral precautions


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#+ransport o' Men and Materials .aulage

Haulage roadways

•

/here any person is allotted to work or pass while the haulage is in motionrefuge shall be provided at intervals of not more than "0 metres+

• 4rovided that where the gradient is less than " in 1 such manholes may be pintervals of not more than 20 metres.

• anholes shall be not less than ".$ metres in height and ".2 metres in deptthan 0.5# metres but not more than one metre in width+

• 4rovided that where the roadway is less than ".$ metres in height, the manhmade to the full height of the roadway

• Every manhole shall be kept clean and clear of obstruction, and white washand for a distance of not less than 0.3 metres around the aperture


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+ravelling road3ays

Every such travelling roadway shall

• be not less than ".$ metres high throughout)

• where the inclination e*ceeds 30 degrees from the hori6ontal, be providedsuitable steps or ladders)

• where the inclination e*ceeds # degrees from the hori6ontal, be provide

addition to steps or ladders, with hand rails or ropes so as to ensure safe t• 'where the inclination e*ceeds 10 degrees from the hori6ontal, be provide

addition to the steps or ladders and rails or ropes, with suitable platformsnot e*ceeding "0 metres measured along the slope.


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• +u6s and their movement

• .aulage Ropes

• Road3ay Conveyors

• *2amination o' haulage engines

• *2amination o' haulage and travelling road3ays

• ocomotives

• Movement o' 3agons• 8encings and gates


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$ Mine ,or/ings

• Opencast workings

• n opencast workings, the following precautions shall be observe

•

any pillar is left in situ for the purpose of measurement, its heighe*ceed 2.# metres) and where the height of such pillar e*ceeds ".the base of the pillar shall not be less than ".# metres in diameter

• the sides shall be kept benched and the height of any bench shall ".# metres and the breadth thereof shall not be less than the heigh

• the sides shall be sloped at an angle of safety not e*ceeding # dethe hori6ontal or such other angle as the 7egional nspector may an order in writing and sub8ect to such conditions as he may spec

• No tree, loose stone or debris shall be allowed to remain within aof three metres from the edge or side of the e*cavation

• No person shall undercut any face or side or cause or permit such

undercutting as to cause any overhanging


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• Development work

• %he dimensions of pillars and galleries, and the shape of pillars, formany seam or section shall be such as to ensure stability during the fo

and e*traction of pillars and during the period between such formatie*traction.

• Save with the previous permission in writing of the 7egion nspectosub8ect to such conditions as he may specify therein no gallery in a section shall e*ceed three metres in height or .$ metres in width at place.

• %he pillars formed in any seam or section shall normally be rectangushape.

• %he distance between the centres of any two ad8acent pillars left in asection shall not be less than that specified in the appended table ascorresponding to the depth of the seam or section from the surface a

point and the width of the galleries in the workings in question.


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• Nothing in sub&regulation '2(, '3( and '( shall apply to workings in a mine ma5th September, "921. n such workings, the following provisions shall apply, e*the e*traction or reduction of pillars &

• f the distance between the centres of ad8acent pillars is smaller than that specitable appended to sub&regulation '( the pillars shall not be further reduced) or

•

if the distance between the centres of ad8acent pillar is not small that that specitable appended to sub&regulation '(, the pillars shall not be so reduced as to redistance smaller than

'( the distance so specified) or

'ii( any distance required in this behalf by the 7egional nspector

• %he height and width of the galleries shall not be further increased without thein writing of the 7egional nspector and sub8ect to such conditions as he may stherein.

• n the case of all workings, where in the opinion of the 7egional nspector the of pillars or galleries are such as to render it likely that crushing of pillars or th premature collapse of any part of the workings will occur either before or durine*traction of pillars, he may, by an order in writing require such modification odimensions aforesaid in respect of any future working as he may specify.


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Underground Coal Mine Regulations1957(CMR)

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Transcript of Underground Coal Mine Regulations1957(CMR)