综合超前地质预报技术在隧道探测中的应用

Application of Comprehensive Advanced Geological Forecast in Tunnel Detection

针对在我国岩溶地区修建隧道时遇到的某些地质灾害,利用综合超前地质预报技术对地质情况进行探测,分析综合地质预报技术的组成、特点及工作方法;结合具体工程地质特征,提出基于地质识别、地质雷达法等相结合的综合探测技术,分析该技术手段对具体工程的实用性、先进性及其发挥的重要作用;并以贵州省德江至习水高速公路天城坝隧道为案例,阐述该技术的实施工艺流程及原则。探测结果表明,实际情况与预报情况基本一致,具有高精准度,可为类似隧道的超前地质预报的应用提供参考及借鉴。

Aiming at certain geological disasters encountered when constructing tunnels in karst areas of our country,this paper uses comprehensive advanced geological forecasting technology to detect geological conditions,analyzes the composition,characteristics,and working methods of comprehensive geological forecasting technology;combining specific engineering geological features,comprehensive detection technology based on geological recognition and ground penetrating radar is put forward. The practicability,advanced nature and important role of the technical means to specific projects are analyzed. With Expressway in Guizhou Province as a case,the technology’s implementation process and principles are illustrated. The detection results show that the actual situation is basically the same as the forecast situation with high accuracy,which can provide reference for application of advanced geological forecasts in similar tunnels in the future.