基于地质雷达的隧道超前地质预报技术应用研究

Research on the Application of Advanced Geological Predition Technology for Tunnels Based on Ground Penetrating Radar

日益增多的山岭隧道多处于复杂工程地质条件的地区,以我国西南地区尤甚.在山岭隧道的勘查和施工过程中,常伴随着岩体破碎、岩溶、岩爆、煤层瓦斯和采空区等特殊工程地质问题单独或者交错出现,带来严重安全隐患,耽误工程进度.超前地质预报是山岭隧道施工过程中有效避免此类工程地质问题不可或缺的重要手段之一.本文在简要论述了华蓥山隧道地质条件的基础上,采用地质雷达探测掌子面与开挖掌子面验证相结合的方式,对比分析了山岭隧道施工中超前地质预报技术的应用成效,并进一步提出相应的施工建议.

An increasing number of mountain tunnels are located in area with complex engineering geological conditions,especially in the southwest region.During the Exploring and constructing process of mountain tunnels,it is often accompanied by rock fragmentation,karst,blasting,coal seam gas and goal,etc.These problems are appearing alone or in a staggered manner,which bring serious potential safety hazard,and postpone construction process.Advanced forecasting enables effective avoidence such engineering problems during the construction process of mountain tunnels,which is an indispensable means.It is the basis of briefly discussing the geological conditions of Huaying Mountain Tunnel.It adopts verification of palm face and excavation face detection using ground penetrating radar as combination way to analyze the application effect of advanced geological prediction technology contrastively in mountain tunnels and put forward further construction suggestions.