摘要
在隧道施工中经常面临复杂多变的不良地质条件,给施工安全带来艰巨的挑战。如何提高隧道超前地质预报技术的准确性,为施工方案的优化提供可靠的信息,一直是隧道施工技术研究的关键问题。隧道工程界广泛使用地球物理探测方法对隧道进行超前地质分析。文章通过地球物理探测方法在石塘隧道(TSP法)与莫洛隧道(GPR)中的实际应用,结合施工阶段采取地质分析法实现超前地质预报。结果表明:探测结果和实际开挖后的情况基本吻合,其中,地质雷达GPR探测距离相对较短,准确度相对较高;TSP探测距离相对较长,准确度表现较好,但投入成本相对较高。通过对比分析两套地球物理探测方法的应用效果和特点,可为类似工程提供参考。
The complex and changeable adverse geological conditions are often faced in the tunnel construction,which brings arduous challenges to the construction safety.How to improve the accuracy of the tunnel advance geological forecasting technology and provide reliable information for the optimization of the construction plan has always been the key problem of tunnel construction technology research.Geophysical detection methods are widely used in tunnel engineering to carry out advanced geological analysis of tunnels.The paper adopted the geophysical detection method applied in Shitang Tunnel(TSP method) and Moruo Tunnel(GPR),combined with the geological analysis method in the construction stage to achieve advance geological prediction.The results show that the detection results are basically consistent with the actual situation after excavation.Among them,the geological radar GPR has a relatively short detection distance and a relatively high accuracy;TSP has a relatively long detection distance and a good accuracy performance,but the investment cost is relatively high.By comparing and analyzing the application effects and characteristics of the two sets of geophysical detection methods,it can provide a reference for similar projects.
出处
《内蒙古公路与运输》
2022年第1期6-10,共5页
Highways & Transportation in Inner Mongolia
基金
国家自然科学青年基金项目(51608081)
重庆市教委科技项目(KJQN202103004)。
关键词
隧道工程
超前地质预报
隧道施工
不良地质
tunnel engineering
advanced geological forecast
tunnel construction
unfavorable geology
