gasdrainage相关论文
In the coal mine gas drainage,the gas drainage in gob has a dominant position. According to different stages of the prod......
A study aimed at the coal seam group E and F in Pingdingshan mining area has been completed. This study is on the relati......
As longwall caving mining method prevails rapidly in China coal mines, amount of gas emission from longwall faces and go......
The working conditions of the MK-3 type full hydraulic tunnel drilling machine during the course of drilling were analyz......
Gas drainage in Jincheng Mining Group Co., Ltd. was introduced briefly and the importance of gas drainage in gas control......
Gas drainage efficiency improvement by increasing coalbed permeability using waterjet cutting system
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In the course of increasing production in the workings of German hard coal mining，the part of
ventilation techniques as a......
High Performance Longwall Mining in Deep and Methane Rich Coal Deposits in Germany Taking into Accou
In German underground hard coal mining，extraction has had to be moved to ever-greater depths，
using the multi-seam mining ......
针对我国高瓦斯煤层赋存特点及目前煤矿区域瓦斯治理过程中存在的问题,理论分析了煤与瓦斯耦合作用下爆生裂隙形成机理,开发了新型......
