A Study of Computation Model with Load-structure Method for Unsymmetrically Loaded Closely-spaced Tunnel

The load-structure method is the general method of tunnel structure design,in order to simplify the computation,many kinds of tunnel's computation models have been established with load-structure method. This paper summarizes their characteristics by analyzing and comparing those models.Taking the Pingnian Closely-spaced Tunnel of Yunnan Yuanmo Highway for example,this paper analyses the tunnel with Finite Element Analyses method and Wedge Body Model method,and it compares the numerical simulation result with the computation result by the Wedge Body Model method.The conclusion gained is valuable for computation of unsymmetrically loaded tunnels.