关键词: 回采巷道, 　巷道掘进, 　超前支护工艺, 　围岩稳定性

Abstract: In order to analyze the failure law of the fully mechanized coal mining working face on the roadway surrounding rock,taking the 11105 fully mechanized working face of Huipodi Cola Mine as the engineering background,the failure law of roadway surrounding rock in the stages of working face excavating and working face stoping is studied by using FLAC3D numerical simulation software.The study results show that after the excavation of roadway,the stable condition of roadway surrounding rock is good,the failure of surrounding rock is not significant,with the moving distance of 11105 working face,the vertical stress of the roadway is increased from 11.67 MPa to 23.33 MPa,the twosided displacement of the roadway is 564 mm and the roof subsidence of the roadway is 242 mm,which indicated that the stability of surrounding rock is poor.Based on the above analysis results related to the failure law of mining roadway surrounding rock,the advanced supporting technique is adopted to deal with the 111051 and 111052 roadways of 11105 working face,the specific implementation scheme of supporting technique is discussed,and the supporting parameters are given,so as to provide some reliable reference for controlling the roadway surrounding rock stability under the similar conditions of Huipodi Coal Mine.

Key words: Stoping roadway, Roadway excavation, Advanced supporting technique, Stability of surrounding rock