综合超前地质预报法在岩溶隧道的应用

Application of Comprehensive Advanced Geological Forecast Method in Karst Tunnel

文章结合河池至百色高速公路平坎隧道工程实例,介绍了综合超前地质预报法的应用流程,提出采用TSP、地质雷达、多功能C6钻机、超前加深炮孔、地质分析等5种手段,由粗探到精探,特别是应用了C6XP多功能钻机进行超前地质钻孔,并综合地表地质调查、图纸资料核查,对隧道围岩进行超前地质预报及综合研判,判断隧道的岩溶发育情况,查明隧道施工风险,为岩溶隧道施工提供借鉴及参考。

In combination with Pingkan Tunnel engineering project of Hechi-Baise Expressway,this article introduced the application process of comprehensive advanced geological forecast method,and proposed the use of five means： TSP,geological radar,multi-function C6 drilling rig,advanced deepened hole,and geological analysis for rough exploration to fine exploration,particularly it used the C6XP multi-function drilling rigs for advanced geological drilling,then combining the comprehensive surface geological survey and drawing data verification,it conducted the advanced geological prediction and comprehensive judgment of tunnel surrounding rock,to determine the karst development of the tunnel and identify the tunnel construction risks,thereby providing reference for the construction of karst tunnels.