Reasonable coal pillar size of gob-side entry driving under residual coal pillar in short distance and extra-thick coal seam

Selecting reasonable coal pillar size is the premise of success and safety of gob side entry driving. Taking 30503 working face of a coal mine as the background, the reasonable size of narrow coal pillar in gob driving roadway under the condition of overlying residual coal pillar and adjacent goaf...

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Hlavní autor:	GAO Le, ZHAO Bin, ZHOU Xiangwen, LI Zhenlei, SONG Dazhao, YAN Pengfei, TIAN Xianghui
Médium:	Artigo
Jazyk:	Chinês
Vydáno:	Editorial Office of Safety in Coal Mines 2022-02-01
Edice:	Meikuang Anquan
Témata:	residual coal pillar close distance extra-thick coal seam gob-side entry driving coal pillar width numerical simulation
On-line přístup:	https://www.mkaqzz.com/cn/article/id/7848
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