摘要
采用声发射法测量技术对东欢坨煤矿深部进行了地应力测试,分析得到了东欢坨煤矿深部地应力的大小和方向,最大水平主应力方向接近垂直方向,最小水平主应力方向接近水平方向,表明矿区深部主要受垂直应力影响,垂直应力是煤层冲击地压发生的诱导因素。
The in - situ stress in Donghuantuo coal mine was measured by adopting sound emission method, and the direction and magnitude of in - situ stress was obtained. It turns out that the maximum principal stresses parallels vertical direction, and the minimum principal stress parallels horizontal direction. The result shows that coal mine are mainly influenced by vertical stress. The vertical principal stress is induction factors of rock burst.
出处
《华北科技学院学报》
2015年第4期36-38,42,共4页
Journal of North China Institute of Science and Technology
关键词
地应力
声发射法
冲击地压
深部
In - situ stress
sound emission method
rock burst
deep
