关键词: 倾斜煤层, 回采巷道, 围岩控制, 支护参数, 矿压监测

Abstract: In order to solve the problem of support difficulty caused by the high concentrated stress and dynamic pressure produced by the goaf of lateral working face in pangpangta coal mine, the optimization design of support materials, methods and support parameters was carried out, so as to reduce the overall surface deformation of roadway and ensure the safety and efficient mining of mining face. According to the actual conditions of mining roadway in 5-107 working face, the high-strength square arch bolt supporting plate with 150 × 150 × 10 mm and the high-strength square arch anchor cable supporting plate with the size of 300 × 300 × 16 mm are developed. The coupling support technology of timely high preload, strong bolt anchor cable, strong protection surface component and strong side support is proposed. The supporting parameters of 5-1071 and 5-1072 roadway are optimized, The analysis results of mine pressure monitoring data show that the roadway deformation after optimization design is within the controllable range.