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China is a mountainous country , and the landslide hazard a corresponding . In particular, With recent years sophistication of the use of land , the construction of the highway , to be completely avoided LANDSLIDE impossible . Sometimes limited due to objective factors , the tunnel will be inevitable under to wear even Zongchuan landslide . However, there is also less work LANDSLIDE tunnels , the lack of experience in the design and construction of reference . Therefore, the to western construction project \The numerical simulation using the finite element program ANSYS, wearing a landslide , acid the inlets tunnel , and Zongchuan - landslide mountain temple tunnel construction simulation analysis , obtained in the process of tunnel construction , tunnel support structure by the force variation , the stress variation of the displacement of the tunnel above the level of the landslide and landslide , the tunnel hole Zhou displacement variation and examines the interaction of law \The finite element strength reduction coefficient method to calculate the stability factor of safety of the landslide . Finite element strength reduction landslide to undermine the state , the displacement of the sliding surface will mutate and produce great and unlimited plastic flow , finite element program can not be found from the finite element equations that meets static the force balance but also to meet the stress - strain relations and strength criterion solutions , whether from the force convergence criteria , or from the displacement convergence criteria to determine finite element calculations do not converge , so the use of force and displacement convergence criteria as landslide destruction of the criterion is the reduction factor at this time is to stabilize the safety factor .
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