Abstract:Compared with single wing mining area, the mining of double-wing working faces can improve the mining efficiency of coal resources and the utilization rate of roadways. However, the successive mining of the double-wing working faces has multiple mining impacts on the main roadway in the mining area, which is easy to cause the deformation of the surrounding rock of the main roadway in the mining area to intensify, or even crack. In this paper, by means of numerical simulation, theoretical analysis and site measurement, the stress distribution and variation characteristics of the main roadway in the I0309 mining area of Limin Coal Mine in Inner Mongolia under the influence of sequential mining in the double-wing working faces are studied. The large deformation mechanism of surrounding rock of main roadway in mining area is analyzed. The reasonable position of stop-mining line in I030901 working face was determined. The research results have important reference value for the stability maintenance of the main roadway in the open mining area of the double-wing working faces.