摘要
采用中空注浆锚索支护大断面永久硐室,实现了锚注一体化,提高了锚索的承载力,巷道两帮和顶底板移近量明显减小,顶板深部离层得到了有效控制,取得了良好的支护效果,节约了用于补强支护的成本。表明以中空注浆锚索为基础的锚注支护方式对大断面硐室的支护稳定性具有显著的效果,值得推广应用。
Using hollow grouting anchor to support the large section permanent chamber, realize the bolting and grouting integration, improve the bearing capacity of anchor cable, and decrease two sides and the deformation amount between roof and floor of roadway, the roof deep separation has been effectively controlled, achieved good supporting effect, and saved the reinforcement support cost, which indicate that the bolting and grouting methods on the basis of hollow grouting anchor to the stability of large cross section chamber has significant effect, it is worthy of popularization and application.
出处
《山东煤炭科技》
2015年第4期1-2,4,共3页
Shandong Coal Science and Technology
关键词
中空注浆锚索
大断面硐室
锚注支护
hollow grouting anchor
chamber of large section
bolting and grouting support
作者简介
申文彪（1971-）山西长治人，采矿工程师，毕业于东北大学采矿专业，现从事矿建工程建设工作。
