What are the rules regarding safety of OB dumps?


Dump shall be formed on stable ground if floor is slippery,it shall be roughed up by blasting or ripping to a depth of 1-1.5m.Soft material like soil shall not be dumped at the fllor.Slope of OB  dump shall be determined by natural angle of repose of material being deposited but it shall not exceed 37.5°from the horizontal.Dump face shall not be retained by artificial means at an angle in excess of its natural angle of repose.Dump height should be designed on scientific basis.If dump height is more than 30m,it shall be benched and the bench height shall not exceed 30m.Toe of the dump shall not be permitted to approach railway or road public works or building closer than a distance equal to height of the dump.A fence shall be erected around the advancing toe of the dump at a distance not less than height of the dump to prevent person approaching the dump.Water shall not be allowed to accumulate in or around the OB dump.Dumps shall be inspected in every shift. Special care shall be taken during and after heavy rains.Dump shall not be formed directly below and near an over head line.                                                                Precautions during dumping                            Dumping area shall be provided with a berm of height 1m or half the dumper wheel dia.Non dumping area or unstable area shall be demarcated by dumping material to a height of 2m.Dumping shall be stopped if there are cracks/signs of instability.

Mining Engineering

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Mining Engineering

First-aid station

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First-aid  station is a place fixed by the manger for rendering first-aid to person injured.Every first-aid station is provided with equipment as prescribed in the Third schedule of mines Rules namely: a stretcher and two blanket,Sets of splints(1.4m,0.9m,0.3m,)and sufficient tringular bandages.First-aid boxes(or cupboards),one per150 person,containin sufficient supply of large and small dressings and burn dressings,sufficient supply of sterilised cotton and adhesive plaster,roller bandages,Dettol or other antiseptic solution,a tourniquet,scissors and safety pins,soap.                                                  First aid station shall be provided at the following places On surface:-                     At pit top/incline mouth.In workshop,screening plant and    ...
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Audio visual alarm

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  When a truck or dumper backs up a person standing behind the vehicle may get crushed.To alert such a person truck/dumpers are provided with audio visual alarm.As soon as the vechile is put in reverse gear, a special horn starts blowing and the backlight flashes.It is a statutory requirements that truck,dumper or loader shall not be run unless the audio visual alarm is working.
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MINE WORKING

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  Opencast working--In open cast working,the following precautions shall be observed,namely:                                          In alluvial soil,morum,gravel,clay,debris or other similar ground-;*the side shall be sloped at an angle of sefty not exceeding 45degree from the horizontal or such other angle as the regional inspector may permit by an order in writing are subject to such conditions as he may specify therein;or the side shall be kept benched and the hight of any bench shall not exceed 1.5meter and the breadth thereof shall not be less than the height:।       Provide that the regional inspector may,be an order in writing and subject to such conditions as he may specify therein, exempt form the operation of his clause any working in the case of which special difficult exist,which in his opinion make compily with the provisions their ...
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