Control effect of thickness ratio of soft and hard composite coal seam on unloading failure

In the engineering practices of coal seam mining and gas drainage, the unloading damage of soft and hard composite coal seam is a common problem faced by surrounding rock support and coal seam enhancement. In order to explore the mechanical properties of the composite coal seam during the unloading...

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Auteur principal:	LIU Hongyong, LI Zhen, YANG Jianmin, LI Longfei, ZHENG Chunshan
Format:	Artigo
Langue:	Chinês
Publié:	Editorial Office of Safety in Coal Mines 2023-06-01
Collection:	Meikuang Anquan
Sujets:	soft-hard composite coal seam pfc numerical simulation coal seam unloading acoustic emission thickness ratio
Accès en ligne:	https://www.mkaqzz.com/cn/article/id/8434
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