千米埋深软岩大断面设计及支护技术

Technology of Large Section Design and Support in km Depth

为解决深部区域支护难题,采用优化设计、地应力测试、高强支护技术,简化了生产系统,摸清了地应力情况,试验了多种高强支护技术方案,解决了深部巷道支护困难等问题。通过优化设计布置大断面巷道,针对高地应力、软岩等地质条件,可以采用锚网索喷+注浆锚杆+注浆组合锚索作为深部巷道的支护方案,实现巷道的合理布置和支护安全。

In order to solve the supporting puzzle in km depth,used design optimization, mine stress test, high strength support technology. Then found out the situation of mine stress and solved the roadway support in deep difficulties and other issues. Great large section roadway by design optimization, for geological conditions of high pressure and soft rock, can use high-strength support technology to achieve a reasonable arrangement and support of roadway safety.