With the reduction and depletion of shallow energy, the mining depth of coal around the world is increasing year by year, and the mining depth of some coal mines in China has reached kilometers. The main roadway near the goaf with the deep high static stress is very easy to be damaged after being disturbed by the mine earthquake. Taking the main roadway in the no. 1 mining area of Gaojiapu coal mine in Binchang mining area, Shaanxi Province, China, as the engineering background, the high-energy mine earthquake monitored by the on-site microseism is equivalently simulated through the dynamic module of FLAC^3D, and the spatial-temporal rotation characteristics of the principal stress of roadway surrounding rock under the disturbance of mine earthquake are studied and analyzed and put forward corresponding prevention and control measures. Research shows early stage of mine earthquake disturbance, roadway roof is first affected, and the principal stress of the roof has the trend of deflection to the side of the goaf. In the middle stage of mine earthquake disturbance, the main body of roof principal stress deflects to the side of goaf, and the deflection range is large. In the later stage of mine earthquake disturbance, the principal stress directions in the surrounding rock reverse rotation, and the reverse rotation angle of the principal stress direction in the roof is the largest. Finally, the asymmetric distribution characteristics of principal stress rotation are verified by using the asymmetric deformation phenomenon on both sides of roadway surrounding rock. Based on the rotation characteristics of principal stress under the dual influence of mine earthquake disturbance and goaf, optimize the layout scheme and blasting parameters of blasting pressure relief holes. The transmission direction of principal stress can be changed by blasting pressure relief method; meanwhile, the transmission of principal stress can be blocked; through the comparison of microseismic activity law before and after pressure relief, pressure relief effect is good. The research results can provide a certain reference basis for coal mine roadway pressure relief and reducing disaster conditions.

中文翻译：

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矿山地震扰动对采空区附近主巷道主应力的影响及防治措施

随着浅层能源的减少和枯竭，全球煤炭开采深度逐年增加，我国部分煤矿开采深度已达千米。采空区附近静应力深高的主巷道，受矿山地震干扰后极易损坏。走在没有的主要道路。以陕西省宾昌矿区高家堡煤矿1矿区为工程背景，通过FLAC ^3D动态模块等效模拟现场微震监测的高能矿井地震,研究分析了矿山地震扰动下巷道围岩主应力的时空旋转特征,并提出了相应的防治措施。研究表明，在矿山地震扰动初期，巷道顶板首先受到影响，顶板主应力有向采空区侧偏斜的趋势。矿山地震扰动中期，顶板主应力主体向采空区侧偏，偏斜幅度大。在矿井地震扰动后期，围岩主应力方向反转，顶板主应力方向反转角最大。最后，利用巷道围岩两侧的不对称变形现象，验证了主应力旋转的不对称分布特征。根据矿山地震扰动和采空区双重影响下主应力旋转特性，优化爆破泄压孔布置方案和爆破参数。可通过爆破卸压法改变主应力的传递方向；同时，可以阻断主应力的传递；通过泄压前后微震活动规律的比较，泄压效果良好。研究成果可为煤矿巷道减压、减轻灾害状况提供一定的参考依据。