Simulation and Analysis on Slope Cutting Reinforcement Scheme of Lishigou Tunnel

摘要

In the construction and excavation process of highway project in mountain area, because the value degree of the geological environment conditions and geological disasters is insufficient, so it often causes the landslide resurrection or part of the resurrection, and forms a new landslide disaster. To ensure the tunnel portal construction and the stability of the slope, this paper based on LiShigou tunnel portal slope engineering, in view of the different slope unloading plan of the LiShigou tunnel portal slope, and based on FLAC~(3D) software to take numerical simulation analysis and comparison, then to determine the safety and the reliability of the construction, at last the optimum scheme of the unloading is chosen.