围岩破碎巷道支护技术研究

Research on support technology for broken surrounding rocks

为了研究某矿采区破碎围岩巷道的支护技术,采用钻孔窥视仪分析了巷道顶板和两帮的围岩破碎情况;在钻孔窥视观测的基础上,结合实践经验,提出了采用高预应力锚杆锚索+金属网+W钢带+巷道表面喷射混凝土的方法,巷道矿压观测表明,试验巷道采用研究确定的支护参数和支护手段,能够有效的控制破碎围岩巷道的围岩变形。

To study the support technology for broken surrounding rocks, drilling peep instrument was used to analysis the situation of broken surrounding rocks of roadway and roof. On the foundation of this detection, combining the experience of practice, the author proposed the method of incorporating of high pretension force anchor and cable, wire netting, W steel band and concret spaying over the roadway. The mine pressure indicates that the supporting parameters and method used in the study of roadway effectively control the deformation of surrounding rock in broken surrounding rocks.