快速掘进巷道支护技术研究

Support Technology of Fast Excavation Roadway

为了解决掘进巷道支护效率低、强度低的问题,提出长锚固构建连续锚固层的支护技术,通过增加支护厚度,降低支护密度的方式,优化了支护方案,并通过数值模拟确定了锚固长度。矿压监测结果显示,掘进效率提高,围岩处于稳定状态,新支护方案有效解决了掘支矛盾。

In order to solve the problem of low support efficiency and low strength of tunneling roadway,a support technology of long anchorage to build continuous anchoring layer was proposed.By increasing the thickness of the support and reducing the density of the support,the support scheme was optimized,and the anchorage length was determined by numerical simulation.The mine pressure monitoring results show that the tunneling efficiency is improved,the surrounding rock is in a stable state,and the new support scheme effectively solves the contradiction between excavation and support.