Based on Yangpoli tunnel in Wudu-Guanzigou expressway

both the interaction mechanism and the deformation and failure mode between tunnel and landslide in the condition of tunnel traversing landslide longitudinally are deeply discussed. On the basis of theoretical analysis

a relevant comprehensive controlling design is put forward. Furthermore

the strength reduction finite element method and limit equilibrium method are carried out to analyze the excavation reinforcement effect for the tunnel crossing landslide. The comparison analysis of stabilities before and after excavation illustrates that under the excavation

the landslide stability meets the design specifications of the code. So far

the engineering is under construction and the safety stability is in good condition. In addition

studies show that: the tunnel structure crossing landslide longitudinally works as a major “anti-sliding structure” in terms of landslide; due to the effect of landslide thrust

the principal stresses of tunnel lining suffer apparent deflection. When entering the stable bedrock

with the increasing of distance between tunnel vault crown and the interface of bedrock and alluvion covering

the principal stresses of tunnel lining gradually transform into normal state. The analysis of tunnel crossing landslide longitudinally and comprehensive controlling scheme will provide a guidance for similar engineering.