In order to ensure the stability of the surrounding rock of the headstock of the 2105 transport trough machine, by analyzing the specific conditions of the surrounding rock at the headstock, a numerical analysis was performed to analyze the deformation law of the joint-developed mining roadway. When the main joint was 15 °, the deformation of the surrounding rock of the roadway and the development of the plastic zone were the largest. When the main joint development inclination was 65 °, the development depth of the plastic zone of the roof of the roadway was about 1.53 m, and the plastic zones of the lower left and right lower sides develop. The depth was the largest, 1.92 m and 1.21 m respectively. Combined with the specific geological conditions, the support scheme of the roadway was specifically designed, and the mining pressure monitoring was performed to verify the support effect. The results showed that after the implementation of the support scheme, the maximum deformation of the top and bottom heave and the two sides of the forward-slot machine head chamber and the two groups are 12 mm and 9.5 mm respectively, which guaranteed the stability of the surrounding rock of the mining roadway.
马富君. 伊田煤业2105工作面松软煤层巷道围岩控制技术研究与应用[J]. 煤炭与化工, 2019, 42(12): 49-53.
Ma Fujun. Research and application of surrounding rock control technology of soft coal seam roadway in 2105 working face of Yitian Coal Industry. CCI, 2019, 42(12): 49-53.