Abstract：In order to explore the roof caving mechanism of roadway and control roof caving accidents, taking 11102 working face of Ciyaogou Coal Mine as the background, numerical simulation, theoretical analysis and on-site roof leakage accident control were studied. The results show that when the surrounding rock deformation occurs, the top angle of the roadway and the two sides bear the double action of tension and shear. With the expansion of tension and shear stress, the deformation of the roadway shows a trend of overall convergence. the roof subsidence is the largest, the convergence value of the two sides is the smallest, and the floor heave value is in the middle; the failure of roadway begins with the collaborative failure of roof, two sides and floor, and gradually develops into the roof deformation. The failure of roadway roof experienced four steps: primary extension, secondary extension, tertiary extension splitting and fracture penetration. The on-site roof fall accident treatment measures are effective, which can provide reference for the corresponding projects.
韩正民. 巷道顶板冒顶机理研究与事故现场治理应用[J]. 煤炭与化工, 2022, 45(2): 22-26.
Han Zhengmin. Research on roof caving mechanism of roadway and application of accident scene management. CCI, 2022, 45(2): 22-26.
