论文部分内容阅读
文章通过对五指山特长公路隧道发生的特大突涌水坍方的灾害发生过程分析,认为成功排泄坍方体前方的积水是处理坍方的关键所在,并运用TSP203地质超前预报系统查明了坍方体的大致范围。本文主要介绍采用迂回导洞技术进入主洞坍方体前方实现泄水和坍方处理的施工技术。结果表明采用迂回导洞泄水是行之有效的方法,不仅可以排泄主体隧道的涌水为坍方的治理创造条件,而且也为隧道的继续开挖提供了工作空间。
Based on the analysis of the process of the sudden collapse of the Wuzhishan highway tunnel, the author thinks that the successful drainage of the water in front of the collapse body is the key point to deal with the collapse, and the approximate scope of the collapse body is identified by TSP203 geological advanced forecasting system . This article mainly introduces the construction technology of using the roundabout guide hole technology to enter the main cave and collapses in front of the collapse body. The results show that it is an effective way to use the detour guide tunnel to drain water, which can not only drain the water from the main tunnel to create conditions for the collapse control, but also provide a working space for the continued excavation of the tunnel.