Pressure relief, gas drainage and deformation effects on an overlying coal seam induced by drilling an extra-thin protective coal seam

Mining Science and Technology (China) - Tập 19 - Trang 724-729 - 2009
Hai-bo LIU1, Yuan-ping CHENG1, Jian-cheng SONG2, Zheng-jie SHANG1, Liang WANG1
1National Engineering Research Center for Coal & Gas Control, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China
2Zhengzhou Coal Industrial Group Corporation Ltd., Zhengzhou, Henan 452371, China

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Mining Science and Technology (China)

Tập 19

724-729

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