论文部分内容阅读
以矿区首采区地质补充勘探工程为基础,结合收集到的井田水文地质、工程地质、工作面开采等相关资料。采用相似材料模拟实验,对采区首采面及后续工作面开采上覆整体移动带坚硬火成岩岩床初次破断及周期破断距进行了模拟研究。结果表明10414工作面火成岩的初次破断距为285~300m,周期破断距为135~150m。研究成果对坚硬覆岩条件下煤层开采具有较重要的理论和实践意义。
Based on the geological supplementary exploration project of the first mining area in the mining area and the collected relevant data of minefield hydrogeology, engineering geology and working face mining, etc. The simulating experiment of similar material was used to simulate the initial rupture and periodic rupture of the hard igneous rock bed in the first mining face and the subsequent working face of the mining area. The results show that the initial breaking distance of igneous rocks in 10414 is 285 ~ 300m and the period of breaking is 135 ~ 150m. The research results have more important theoretical and practical significance for coal mining under hard overburden conditions.