Research on the optimization and application of coal pillar width in gob-side entry driving under hard roof condition

Research on the optimization and application of coal pillar width in gob-side entry driving under hard roof condition

The width of the coal pillar is a key factor in the success of the gob-side entry driving (GED) technique. This paper, based on the 4,317 working face at Chengzhuang Coal Mine, reveals the stability mechanism of roadway surrounding rock during GED with coal pillars of different widths. Firstly, a ma...

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Bibliographic Details
Main Authors: Guangyi Li, Linsheng Gao, Qi Ma, Haoran Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Earth Science
Subjects:
gob-side entry driving
coal pillar
internal and external stress field
hard roof
numerical simulation
Online Access:https://www.frontiersin.org/articles/10.3389/feart.2025.1603252/full
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