Method and Technology of Green Coal Mining
Sold by Ria Christie Collections, Uxbridge, United Kingdom
AbeBooks Seller since March 25, 2015
New - Hardcover
Condition: New
Ships from United Kingdom to U.S.A.
Quantity: Over 20 available
Add to basketSold by Ria Christie Collections, Uxbridge, United Kingdom
AbeBooks Seller since March 25, 2015
Condition: New
Quantity: Over 20 available
Add to basketresidual coal pillar; gob-side entry driving; extra-thick coal seam; coal pillar size; surrounding rock control; directional long borehole; long-distance; heading face; permeability evolution; gas pressure evolution; gas drainage; pre-splitting blasting; roof cutting technology; hydraulic fracturing; no-coal pillar mining; thick hard roof; pressure relief technology; sandstone; deformation behavior; permeability evolution; mining stress path
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