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针对杨营煤矿巷道支护设计缺乏地应力依据的问题,采用套孔应力解除法完成了-595 m水平3个测点的原岩应力测定,掌握了区域内地应力大小及分布规律,根据地应力测试结果对巷道围岩稳定性进行了分析,对原有支护方案进行了优化。
In view of the lack of geo-stress based on the design of roadway support in Yangying Coal Mine, the original rock stress measurement of 3 measuring points at the level of -595 m was completed with the stress relief method of the sleeve hole. The in-situ stress magnitude and distribution were grasped. According to the in-situ stress test Results The stability of roadway surrounding rock was analyzed and the original support scheme was optimized.