大断面硐室交岔点锚网梁支护施工技术

The construction technology of large section cave cross point anchor net beam supporting

以4号交岔点为例,介绍了锚网喷支护作用机理、支护形式及具体施工方法和注意事项,工程实践证明:在交岔点等大跨度巷道采用锚网喷支护,再加打锚索作为辅助支护有很好的推广价值。

With 4 # cross point as example, the function mechanism, supporting form, specific construction method and maters need attention in anchor net supporting were introduced. The engineering practice proved that the anchor net spray supporting adopted in cross point large span tunnel and with anchor cable as secondary support had better popularization value.