Research on Stress Distribution Regularity and Support Optimization of an “Umbrella” Coal Pillar in a Gob-Side Roadway Based on Irregular Gob

Aiming at the phenomenon of a large amount of roof subsidence and rib caving in the gob-side roadway under the special “umbrella” coal pillar in isolated panel No. 325 of Yangcun Coal Mine, the stress distribution regularity of the gob-side roadway under a “umbrella” coal pillar was studied in detai...

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Bibliographic Details
Main Authors: Yongjie Yang, Yang Zhang, Gang Huang
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/11/3932