关键词: 塔拉壕矿, 辅运巷, 变形破坏, 淋水顶板, 塑性区, 支护技术

Abstract: According to problems of 3203 auxiliary transport roadway surrounding rock stability and supporting in Tala Hao mine. Through field measurement and numerical simulation, deformation and failure characteristics and mechanism of the auxiliary transport roadway surrounding rock was analysed. The results show that the roadway surrounding rock deformation and failure began to appear behind the working face, as the working face moved forward, the degree of destruction become larger, when the 300m~400m was promoted in the working face, the surrounding rock of the roadway tended to be stable. In order to prevent the occurrence of accidents, according to the plastic damage law of auxiliary transport roadway roof, the reinforcement measures for roof classification were put forward, reasonable support measures were chosen such as adding anchor and shed supporting to ensure the safety of roadway.