某山区铁路隧道工程地质综合勘察与施工验证分析

Analysis of Comprehensive Exploration and Construction Verification of Engineering Geology of a Mountain Railway Tunnel

近些年,高速铁路隧道修建积累了丰富的勘察设计与施工经验,而山区隧道的勘察一直是困扰业界的难题。通过对比分析后发现,隧道区物探的异常和区域地质资料的可溶岩分布,应引起项目负责人的高度警惕。施工前应进行更加详细的地质调查、加密布置勘探孔、采用不同方法的物探验证和深孔钻孔等手段进行验证,施工时更加重视超前水平钻和地质雷达等超前地质预报工作。通过总结提炼了勘察与施工配合的相关内容,提升了我院山区铁路勘察的方法和经验,更好地指导施工期隧道地质配合。

In recent years,the construction of high-speed railway tunnels has accumulated rich experience in exploration,design and construction,and the exploration of mountain tunnels has always been a difficult problem that troubles the industry.Through comparative analysis,project leaders should be highly alert to the anomaly of geophysical prospecting in the tunnel area and the distribution of soluble rocks in regional geological data,carry out more detailed geological exploration,infill the layout of exploration holes,and use the different methods of geophysical verification,deep hole drilling and other means to verify,and they should pay more attention to advanced geological prediction such as advanced horizontal drilling and geological radar during construction.By summarizing and refining the relevant content of exploration and construction coordination,our institute has improved the methods and experience of railway exploration in mountainous areas to better guide the geological coordination of tunnels during construction.