Abstract
In this paper, the mechanical model of tunnel in landslide area is established, the boundary and load conditions are determined, the internal force distribution of tunnel under landslide load is analyzed, and the influence of the scope of landslide area, load characteristics and stiffness of support structure on the internal force of tunnel structure is analyzed by using finite element software, and the sensitivity of each influencing factor is divided. Analysis. It is proposed that the support of tunnel in landslide area should be combined with increasing the thickness of secondary lining and the length of bolt, and verified by finite element method. By comparing the internal force of reinforced lining with that of unreinforced lining, it is concluded that the new support method is feasible.
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