深部高应力矿井原岩应力测试与生产影响分析

Analysis on the Influence of Primary Rock Stress Testing and Production in Deep High Stress Mine

本文通过应力解除法在郭屯煤矿巷道中选取了4个测点,进行原岩应力测试,分析原岩应力分布规律以指导矿井更加安全高效的生产。结果显示:最大主应力为水平应力,方向为119.03°~122.01°;工作面巷道掘进方向与最大水平应力已接近垂直,水平应力对巷道围岩控制和底板破坏深度影响严重。

In this paper,through the stress relief method,four measuring points are selected in Guotun Coal Mine roadway to test the primary rock stress and analyze the stress distribution law of primary rock,so as to guide the safe and efficient production of the mine.The results show that:the maximum principal stress is horizontal stress,the direction is 119.03°to 122.01°;and the heading direction of working face is nearly vertical to the maximum horizontal stress,and the horizontal stress has a serious impact on the surrounding rock control and floor failure depth.