Field and numerical investigations of gateroad system failure under an irregular residual coal pillar in close‐distance coal seams

Abstract The Gaojialiang Coal Mine in Inner Mongolia in China was used as an example to investigate the process of chain pillar and gateroad failure in the lower coal seam under the effect of an irregular residual coal pillar in the upper close‐distance coal seam. The results indicated that after th...

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Bibliographic Details
Main Authors: Hefu Shang, Jianguo Ning, Shanchao Hu, Shang Yang, Pengqi Qiu
Format: Article
Language:English
Published: Wiley 2019-12-01
Series:Energy Science & Engineering
Subjects:
Online Access:https://doi.org/10.1002/ese3.455