The Traetment Study On Tunnel Disease Of Pantian Highway

Along with high speed development of our country infrastructure enterprise and western development,The highway, railway and water-power engineering are developed rapidly in our country, a large number of tunnel projects will be started. The collapse and great deformation of tunnel become the big problem concerned by people. The collapse and great deformation reasons of tunnel is complicated, not merely delay project time, also improve the project expenses and be dangerto the workers. So the study of the tunnel show urgently and importantly.This article base on PianTian highway project, discuss the classification and formation mechanism, give the principle and plan of dispose in collapse and great deformation of tunnel. Combining collapse and great deformation of two tunnels in PanTian highway, analyzed its cause reason and evolution proceed and the dispose plan. Using the tunnel monitoring control in the proceed of disposing,and also using the finite element simulation analyze the difference of the disposing and undisposing. Analyzing the strain from the simulation analysis.Contrasting the results of the tunnel monitoring and finite element simulation analysis, it is indicated that the dispose method is proper.The study of paper is instructive and worthy of learning.