复杂地质条件下的隧道地质超前探测技术

GEOLOGICAL PREDICTION TECHNIQUE FOR TUNNEL CONSTRUCTION UNDER COMPLEX GEOLOGICAL CONDITIONS

近年来 ,隧道超前地质探测工作在我国越来越受到重视 ,许多隧道工程中都采用了相应的超前探测技术 ,积累了有益的经验。实践表明 ,采用以TSP(TunnelSeismicPrediction)隧道地质超前预报系统为主 ,并结合其它探测手段的综合超前预报方案能较好地兼顾隧道工程施工的特点和探测成本等方面的要求。本文以德国楚格山排污隧洞和中国某高速公路隧道为例 ,介绍了TSP在复杂的岩溶地质条件下的应用情况 ,初步探讨TSP在溶洞体探测方面的局限性 。

In recent years, there is increasing awareness on the importance of geological prediction while tunneling in China, and many tunnel projects have been constructed under assistance of selected geological prediction techniques which contribute greatly to the experience recording. The practice shows that the combined approach of TSP （Tunnel Seismic Prediction） with other prediction techniques can best meet the requirements of tunnel construction procedures and the prediction implementation costs etc. This paper presents the TSP application under complex karstic rock formations taking the Zuckerberg sewer tunnel in Germany and a highway tunnel in China as examples. Additionally, the limitations of TSP prediction technique for karst detection are discussed, and the basic ideas to solve such problems are presented.