深部向斜构造区煤泥岩巷道围岩变形特征与控制技术

doi:10.11799/ce202407011

Abstract

Abstract: Aiming at the problem of controlling the deep roadways of coal and mudstone surrounding rock, the transportation roadway of a coal mine was chosen as the research object, combined with field investigation, numerical simulation, and theoretical analysis methods, the displacement and stress distribution characteristics of the surrounding rock of deep roadways within coal and mudstone layers were analyzed. The main structure and principle of the inner and outer bearing structures circular collaborative control technology applicable to the surrounding rock of deep roadways within coal and mudstone layers were studied. A constrained concrete support and surrounding rock coupling model was constructed, and the displacement and plastic zone distribution characteristics of the surrounding rock of deep roadways within coal and mudstone adopting the inner and outer bearing structures were analyzed. The industrial tests were conducted and the controlling effect is good, providing a certain reference for the stability control of surrounding rocks in similar roadways.

CLC Number:

TD353

References

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Stability control technology for surrounding rock of deep and large deformation composite tunnels

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