In this paper, the deformation and damage of the transportation roadway in the 3201 working face of Xinsan Mine was studied, and it was analyzed that the main factors leading to the deformation and damage of the transportation roadway were the complex geological conditions of the roadway, the unreasonable design of the original support, and the under-utilized self-supporting ability of the surrounding rocks. In combination with the actual geological conditions, the "anchor cable + U steel + flexible layer" composite support scheme was designed to repair the transportation roadway, and the results showed that the scheme achieved a good repair support effect.
闫玉峰. 深部回采巷道变形破坏原因及返修支护控制研究[J]. 煤炭与化工, 2020, 43(12): 6-8.
Yan Yufeng. Study on the causes of deformation and damage of deep recovery roadway and repair support control. CCI, 2020, 43(12): 6-8.
