郭屯煤矿深部地应力测试及应用探讨

Study on Stress Measurement and Distribution Law of Deep Rock in Deep Part of Guotun Coal Mine

选用应力解除法,依据地应力测点排列的基本原则,并把郭屯煤矿深部井下生产和建设情况结合起来,在现有埋深900 m巷道范围内选择了4个测点进行了地应力实测。根据具体的地应力实测结果,地应力场的最大主应力为水平应力,对矿井的影响最大。因此,在矿井安全生产中,特别在巷道支护设计、冲击地压防治和底板水防治工作中应考虑水平应力的这一主要影响因素。

According to the basic principle of the original rock stress measurement point layout, combined with the Guotun coal mine deep underground production construction,applied overcoring method, existing in the depth range of 900 m tunnel chose four measuring points of in-situ stress measurement.According to the measured monitoring results of the original rock stress. The stress field＇s maximum principal stress is the horizontal stress ,which has the greatest impact on the mine. Therefore, in the production of coal mine, the main factors that should be considered in the design of roadway support, the prevention and control of rock burst and floor water should be considered.