软弱围岩隧道施工技术探讨

结合雁门关隧道地质条件极其复杂,地下水极为丰富,施工安全风险极高的工程状况,对施工过程中采取的严格控制地下水对施工的影响、狠抓超前地质预报和围岩监控量测工作、及时增强初支刚度等技术措施进行了探讨,以期为施工和结构安全提供保证,实现预期目标。

On exploration for construction technique for weak surrounding rock tunnels

Combining with the project statues at Yanmenguan Tunnel, including the complicated geological conditions, the abundant underground water, the risky construction, the paper explores the technical measures in the construction process, such as the strict control over the influence of the underground water on the tunnel, the studies on the advanced geological forecast and inspection and measurement of the surrounding rock, and the timely enhancement of the initial stiffness, provide some guarantee for the construction and structural safety and realize the expected aims.