摘要
针对深部煤矿复杂困难巷道条件,提出了高预应力强力锚索锚注支护方案,介绍了围岩破坏的特点和高预应力强力锚索的力学性能,以及围岩破坏与预应力全锚索支护的耦合作用机理;高预应力强力锚索锚注支护成功应用于矿井巷道,取得了较好的支护效果,不仅解决了巷道支护难题,而且验证了支护方案的正确性。
In view of deep and complicated roadways in coalmines , the bolting and grouting supporting theory of the high pretensioned stress and intensive cable was put forward.The characteristic of failure of surrounding rocks and mechanical properties of the high pretensioned stress and intensive cable are summarized,so is the coupling Mechanism of failure of surrounding rocks and pretensioned full cable Support, which is successfully applied in coal mine lane-way, and has achieved very good results. With the help of coupling mechanism many problems in roadway supporting have been solved, and the validity of the bolting theory has also been verifed.
出处
《山东煤炭科技》
2017年第12期8-10,共3页
Shandong Coal Science and Technology
关键词
锚索
全锚注
支护
anchor cable bolt all anchor note support
