The geological characteristics on discontinuity plane of Yangwan doubled arch tunnel in Jinliwen highway is investigated and analyzed in this paper.Surrounding rock stress field and displacement field during excavation and consolidation in Jinliwen highway Yangwan doubled arch tunnel are researched guantitatively. The result shows that strain ratio of surrounding rock is high in Yangwan tunnel

and displacement decreases by fifty percent after liner.It testified that the linear type satisfy surrounding rock displacement.Tension stress is bigger than the first excavation.Anti-tension of linearity is satisfactory except at some location.