Study on the Influence and Control of Stress Direction Deflection and Partial-Stress Boosting of Main Roadways Surrounding Rock and under the Influence of Multi-Seam Mining

Study on the Influence and Control of Stress Direction Deflection and Partial-Stress Boosting of Main Roadways Surrounding Rock and under the Influence of Multi-Seam Mining

A large coal pillar (usually more than 90 m) is generally left in place to ensure the stability of main roadway groups, due to its long service lifespan, which commonly also causes a significant loss of coal resources. The design of the width of the protective coal pillar and the control system of t...

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Bibliographic Details
Main Authors: Dongdong Chen, Fangfang Guo, Zijian Li, Xiang Ma, Shengrong Xie, Yiyi Wu, Zhiqiang Wang
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Energies
Subjects:
main roadway group
mining-induced stress
surrounding rock stability
ground control
deflection of principal stress
Online Access:https://www.mdpi.com/1996-1073/15/21/8257

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