急倾斜薄煤层巷道变形破坏及顶板冒落特征分析

摘要

During the exploitation of steeply inclined coal mine brings the huge influence to normal mining of working face,transportation of coal or other materials,leading to unnormal production on working face,worse still, shutdown.Therefore,1922 working face of Zhaojiaba coal mine is as the project background,researches the influence factors and characteristics of roadway deformation and roof caving in steeply inclined thin coal seam,and the relation-ship between steeply inclined thin coal seam and coal seam,side and floor.Then adopts effective measures to avoid major accidents of roadway roof caving based on the characteristics.%急倾斜煤矿开采过程中，由于巷道顶板支护效果差，地质构造应力影响，煤层开采方法不同等导致了煤层巷道变形破坏及顶板冒落，给正常的工作面回采、煤炭及其他物料的运输带来巨大影响，导致工作面不能正常生产，甚至停产。因此，以赵家坝矿1922工作面巷道为工程背景，对急倾斜薄煤层巷道变形破坏及顶板冒落的影响因素及特征，急倾斜薄煤层巷道及煤层、顶底板的关系进行研究，可以此特征为依据采取有效的措施，避免巷道顶板冒落发生重大事故。