Coal‐wall spalling prevention mechanism using advance‐grooving pressure relief in the large‐mining‐height working face of a shallow coal seam

Abstract In mining, the roof structure of a working face with a large mining height in a shallow‐buried coal seam is prone to cutting instability in front of the support, which causes support crushing and coal‐wall spalling. This study analyzes 2201 working faces with large mining heights in the Hai...

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Bibliographic Details

Published in:	Energy Science & Engineering
Main Authors:	Wang Hongwei, Feng Li, Zhao Zhouyan, Li Yanjun, Cao Peipei, Jiao Jianqiang, Jiang Baolin, Liu Yong
Format:	Article
Language:	English
Published:	Wiley 2024-11-01
Subjects:	coal‐wall spalling cutting instability grooving pressure relief large mining height shallow coal seam
Online Access:	https://doi.org/10.1002/ese3.1946