Daily mining knowledge

A) Advantage of Underground (U\G) mining method.     ·        The land above u\g mines is not disturbed and only small area required at pit-top for office, workshop, winding room etc. ·        The agriculture and forest land not disturbed with u\g mining. ·        There is not much environmental problem such as air pollution, noise pollution. ·        No need to excavate over burden to reach ore body. ·        In u\g mining method does not affected on work by weather.   B)   Disadvantage of Underground (U\G) mining method.   ·        There is roof fall problem hence we require roof supporting material which are costly. ·        Additional material (stowing material) required to fill excavated area. ·        There is...

  Advantage and disadvantage of Open Cast (O\C) mines.   A) Advantage of Open Cast (O\C) mines.   Ø Opencast mines are safe as compare Underground mines. Ø There is no problem for roof fails. Ø There is no problem for ventilation, gas emission, explosion, inundation * . Ø There is no need to arraignment artificial lighting during day. Ø High rate of production can achieved as compare as U\G mines and easy to transport the excavated material. Ø  Easy supervision is possible. Ø High mechanized is possible. Ø Full extraction is possible no mineral is blocked in shaft, pillar, barrier, support of main roadway etc.   Note: - Inundation means sudden inrush of water.   B)   Disadvantage of Open Cast (O\C) mines.   Ø Work affected by weather, climate most in Rainy season. Ø To reach ore deposit large amount of overburden required to excavate and dump inside lease area of mines. Ø There is environmental pro...

  Types of Mining methods:- Basically there are two types of mining method, 1)      Open cast. 2)      Underground Mining.   1)      Open cast:- The mining or extraction of ore is done at earth surface and which is open to atmosphere is called as Open cast mining method.   Open Cast mining 2)      Underground Mining:- The mining or extraction of ore is done below the earth surface or in the hill and which is not open to atmosphere are called as underground mining method. Underground mining     1)   Open Cast mining method;                      a)    Manual open cast.                       b)   Semi – Mechanized Open cast.                       c)      Fully – M...

Full form for Mining Eng. D.G.M.S  -  Directorate General of Mines Safety.                (H.Q) Dhanbad .JH. C.M.R - Coal Mines Regulations. C.M.P.D.I -  Central Mine Planning and Design Institute.     "      Ranchi . BR. C.M.P.F - Coal Mines Provident Fund. B.E.M.L - Bharat Earth Movers Ltd. I.S.M - Indian School Of Mines. G.S.I - Geological Survey Of India.                                      (H.Q) Kolkata . WB. C.M.R.S - Central Mining Research Station. I.B.M - Indian Bureau Of Mines.                                               "    Nagpur . MH. C.I.L - Coal India Limited.                              ...