Parameters and surrounding rock control of gob-side driving under double key stratum after roof cutting

Parameters and surrounding rock control of gob-side driving under double key stratum after roof cutting

Abstract Taking the return-airway 4204 with roof cutting in Longquan Coal Mine as the engineering background, roof structure, key parameters, and deviatoric stress evolution were studied. Conclusion: The Key Stratum within a 4–8 times mining height is considered as Near Key Stratum. Cutting the roof...

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Bibliographic Details
Main Authors: Lei Xu, Yuzhao Ma, Davide Elmo, Shuxue Ding, Hengzhong Zhu, Honglin Liu, Wenfeng Li, Wen Chen
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Subjects:
Gob-side entry driving
Narrow coal pillar
Deviatoric stress
Roof cutting
Cantilever structure
Online Access:https://doi.org/10.1038/s41598-024-55679-1

Internet

https://doi.org/10.1038/s41598-024-55679-1

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