论文部分内容阅读
针对深埋厚煤层孤岛煤柱回收过程中巷道围岩变形不均匀、维护效果差等现状,以回收3102孤岛煤柱为工程背景,采用混凝土、承载煤柱和锚杆三者互相耦合共同支撑上覆岩层。详细介绍了防冲护巷方法的施工工艺。
Aiming at the current situation of uneven deformation and poor maintenance effect of surrounding rock in the process of recovery of isolated thick coal pillars in deep thick coal seams, 3102 island coal pillars are taken as the engineering background, and the concrete, the coal pillar and the anchor are co-supported by each other Overburden. Described in detail the method of construction of anti-road protection Lane.