Based on the in-situ observation of the firstly mined working face of Nanliang coal mine, the roof movement, the roof weighting intensity, and entry deformation and failure of the working face were analyzed.
Based on the in-situ observation of the firstly mined working face of Nanliang coal mine, the roof movement, the roof weighting intensity, and entry deformation and failure of the working face were analyzed.
摘要通过南梁煤矿首采工作面采前的实验研究和开采时的现场观测，分析了工作面顶板的移动、来压强度以及巷道变形破坏情况，总结了厚黏土覆盖层浅埋煤层单体长壁工作面的矿压显现规律。