Deformation Monitoring And Stability Analysis Of Xiling Xueshan Tunnel

Xiling xueshan tunnel lie in Dayi country in Sichuan province. It is the only tunnel in Chengdu town.This tunnel has happened many distortions from begin construct, and it continuanced use in the tunnel manage.This arose part collapse of tunnel or disease in differ degree.The early work include: find out the characteristic of engineering, geological instance, hydrological geological instance of Xiling xueshan tunnel; analyze the cause of the tunnel deformation and mechanism of the the wall rock by the locale test. It provide proposal to repair the tunnel.It makes more detailed research in the base of the early work in the ariticle. First do a series of examinations to find out the force of expansion, found the finity units model to convert the swellingforce of rock to the temperature stress. In the period and after one year of the repairation of the tunnel, monitore the tunnel by the pressure of tunnel lining, the stress of steel frame structure, the stress of rockbolt, the pore water pressure and the tunnel convergence. Then found the finity units model to calculate deformation and stress of the tunnel in the base of geological instance, characteristic of engineering, characteristic of the swelling wall rock.It estimate the stability of the tunnel by examination, monitoring and calculation of the the finity units in the ariticle in which provide proposal to the measureing, design and construct of the swilling wall rock tunnel.