Friday, January 31, 2014

Study of Raise Drivage Methods (UMM- Practical No.1)

Posted on 8:17 PM by CHIRAG THAKOR
1.     STUDY OF RAISE DRIVAGE METHODS. Raise is an underground opening driven upward from lower level to upper level or one level to a higher level or to the surface; a raise may be either vertical or inclined. Raising is a regular operation in the development of underground metalliferous mines. (a)   COMPARTMENT...

Wednesday, January 22, 2014

Continuous Miner

Posted on 11:08 PM by CHIRAG THAKOR
CONTINUOUS MINER Powerpoint Presentation          Continuous Miner - Video ...
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Bord and Pillar Coal Cutting Machine

Posted on 9:16 PM by CHIRAG THAKOR
COAL CUTTING MACHINE Introduction: Coal cutting machine is used in bord and pillar mining method of underground coal mining to make Undercut, Overcut or Middlecut to provide free face for the blasting operation. Development by CCM: The headings are Undercut, Overcut or Middle Cut by a coal cutting machine and shot holes are then drilled and charged...
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