巷道过断层安全支护技术分析

Analysis of safety support technology for roadway crossing fault

断层是井下巷道掘进过程中常见的复杂地质状况之一。因断层的存在,其围岩通常破碎而强度较低,这对于掘进施工的支护提出了更高的要求。文章以巷道过断层只工艺为着手点,结合具体工程实例,对巷道通过大断层破碎带的支护技术开展分析。文中在阐述具体支护方案的同时对其支护效果进行了分析,结果表明所采用的支护方案能够对围岩稳定性起到良好的加固效果,实现了对施工安全的保障。

the fault is one of the most complicated geological conditions in the process of underground tunnel excavation. Because of the existence of the fault, the surrounding rock is usually broken and the strength is low, which puts forward higher requirements for the support of tunneling construction. In this paper, the roadway crossing fault technology as the starting point, combined with specific engineering example,the roadway through the large fault zone of the supporting technology analysis. In this paper the specific supporting scheme and the supporting effect were analyzed. The results show that the supporting scheme can reach good reinforcement effect on the stability of surrounding rock, the realization of construction safety.