August 14, 2025ProcessesOpen Access

Deformation, Failure Mechanism and Control Technology of Soft Rock Roadways Buried Under Coal Pillars: A Case Study

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The technology reduced average roadway deformation by 63.4%, demonstrating effective control of soft rock deformation.
Numerical simulation indicated significant stress distribution differences between rectangular and arch roadways.
Analytical solutions for abutment stress were derived, providing insight into underlying rock mechanics.
Field application of high-strength bolts and grouting greatly diminished floor heave by 93%.

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Theoretical analysis reveals deformation mechanisms in soft rock under coal pillars, suggesting effective control technologies.

Ye-wu et al. (2025) studied this question.

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