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Underground Methods Of Working Coal, Hemendra Nath Datta
Underground Methods Of Working Coal, Hemendra Nath Datta
Masters Theses
"'Underground Methods of Working Coal' is the subject of this thesis. It is the purpose of this investigation to summarize all the mining methods under various conditions of working.
The underground methods of mining have been classified under three headings; viz., (a) Room and Pillar, (b) Longwall and (c) Horizon Mining. The conditions suitable for the applicability of each system and their relative merits and demerits are fully discussed.
The principles of the design of the workings of both room and pillar and longwall systems to have effective roof control in the area of the workings are pointed out.
Distinct …