隧道综合超前地质预报技术应用研究

Research on the Application of Comprehensive Tunnel Advance Geology Prediction Technology

在不良地质地区的隧道施工过程中,涌水、塌方等地质灾害风险较高,给施工带来了重大安全隐患。目前地质灾害的物探方法各有其优缺点,为了提高预报的准确性,使用多种方法开展综合超前地质预报十分必要。文章以钦崇路四方山隧道为例,将弹性波反射法和地质雷达法相结合,对隧道开挖掌子面前方的破碎带、节理裂隙、富水段等不良地质进行了有效的综合预报,所采用的预报手段和思路可供类似工程借鉴。

The tunnel construction in poor geological areas has high risk to gushing,landslides and other geological disasters,causing the major safety risk to the construction. The current geophysical methods of geological disasters have their own advantages and disadvantages respectively,thus,in order to improve the accuracy of forecasts,using various methods to carry out integrated geological prediction becomes necessary. Taking Sifang Mountain Tunnel of Qincong Road as the example,and combining the elastic wave reflection method and geological radar method,this article conducted the effective in-tegrated prediction on broken belts,joints and fissures,water-rich segments and other adverse geolo-gies in front of tunnel excavation working face,and the prediction means and ideas being used can provide the reference for similar projects.