隧道不良地质段二衬与初支置换施工及经济效益分析

Construction and Economic Benefit Analysis of Secondary Lining and Primary Support Replacement of Tunnel in Poor Geological Section

隧道作为控制公路工程的重要咽喉节点,直接影响着公路全线的通行效率和安全性。本文以某高速公路隧道衬砌病害处治施工项目为案例,通过阐述置换法的施工工艺和工程经济性指标,分析了隧道置换法在围岩衬砌病害处治中的实际效果。

As an important throat node for controlling highway engineering,tunnels directly affect the efficiency and safety of the entire highway route.Taking the highway tunnel lining disease treatment construction project as a case,this paper expounds the construction technology and engineering economic index of the replacement method,and analyzes the actual effect of the tunnel replacement method in the treatment of surrounding rock lining disease.