基于相似模拟试验研究薄基岩浅埋煤层覆岩裂隙演化浅析

Analysis of Overburden Fracture Evolution of Shallow Coal Seam with Thin Bedrock Based on Similar Simulation Test

基于相似原理,以我国西北地区典型的煤层赋存条件为研究对象,采用相似材料模拟试验的方法,分析煤层开采后上覆岩体移动及裂隙在岩体中的动态演化特征,以及煤层开采引起的覆岩裂隙产生发展的空间规律,对煤矿安全开采和采空区生态环境的生态治理与恢复提供一定的理论依据。

Based on the similarity principle, taking the typical occurrence conditions of coal seams in northwest China as the research object, the dynamic evolution characteristics of overlying rock mass movement and cracks in rock mass after coal seam mining as well as the spatial law of the generation and development of overlying rock cracks caused by coal seam mining are analyzed by using similar material simulation test method. It provides some theoretical basis for safety mining of coal mine and ecological management and restoration of goaf ecological environment.