隧道超前地质预报的方法探讨

Research of the Advanced Geological Forecast Technology of the Tunnel

当前隧道超前地质预报在隧道施工中变得越来越重要,对于如何选择合理有效的预报方法,进行了详细探讨。首先分析了我国现阶段所有的超前地质预报方法的优缺点,然后通过对比分析,提出了隧道的超前地质预报以TSP法长距离探测为主,同时有效地与探地雷达短距离探测相结合的预报方案。通过对邵怀、常吉高速公路的多个隧道的应用研究,此方案取得了很好的预报效果,给施工单位提供了有效科学的指导。

The advanced geological forecast technology of tunnel is becoming more and more important at present. And how to choose a kind of reasonable and effective way to forecast is a big problem. To this problem, a detailed discussion has been made in this paper. Firstly, all kinds of advanced geological forecast methods in our country are introduced. Then a new project is put forward by comparing advantages and disadvantages of each method. The new project is that TSP203 system is made as the main forecast method under some complicated geological condition. The GPR can be used as an assistance means. This project has obtained a good result during the research of many tunnels on the highway of Changde to Jishou,Shaoyang to Huaihua in Hunan province.