岩溶隧道综合超前地质预报技术应用

岩溶水文地质条件复杂多变,单一预报方法难以全面预报岩溶地质信息,导致施工中突水突泥事故频发。本文提出了一套以TSP作为长期预报关键技术初判,地质雷达和红外探水作为短期预报关键技术准确预报,同时结合地质素描综合判断法和水平地质钻探辅助验证的综合超前地质预报技术方案。应用结果表明,此岩溶隧道综合超前地质预报技术能准确预报前方一定范围内岩溶发育特征和位置,能有效保证岩溶隧道施工安全,可为类似岩溶隧道工程建设提供借鉴。

Study on the Application of Comprehensive Advanced Geological Prediction for Karst Tunnel

Since the hydrogeological condition of karst is complicated, it is difficult to forecast karst geological information comprehensively single forecasting method, and the accidents of sudden water or mud inrush take place frequently. The paper proposes a set of comprehensive advanced geological prediction technology solution which takes TSP as the key technology of long-term prediction to estimate preliminarily, GPR and infrared detector as the key technology of short-term prediction for accurate prediction combined with geological sketch comprehensive judgment method and level geological drilling as auxiliary verification. The application results show that the comprehensive advanced geological prediction technology of karst tunnel can accurately predict the karst development characteristics and location within a certain range and effectively ensure the safety of karst tunnel construction, as well serve as a reference for the construction of similar engineering.