Theoretical and Experimental Study on the Mechanism of Instability and Firing Gas in Hard Quartz Sandstone

The upper part of high gas coal seam often has a hard and thick sandstone roof, which provides the condition for the occurrence of gas accident in goaf caused by the friction effect for the sliding and instability of hard quartz sandstone. Based on the engineering background of the 1007 working face...

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Veröffentlicht in:	Advances in Civil Engineering 2021, Vol.2021 (1), Article 6665387
Hauptverfasser:	Liu, Jianqiang, Qin, Guangpeng, Cao, Jing, Zhai, Minghua, Pei, Yunxin
Format:	Artikel
Sprache:	eng
Schlagworte:	Civil engineering Coal industry Coal mines Coal mining Construction & Building Technology Energy Engineering Engineering geology Engineering, Civil Explosions Friction Gas detectors Gas explosions Heat Laboratory tests Masonry Mining accidents & safety Quartz Roofs Sandstone Science & Technology Sliding Sliding friction Stability Strata Technology Theoretical analysis Underground explosions Velocity
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