The design of tunnel cross section depends on the values of internal forces and deformations induced in the lining. These values are influenced by many factors such astype of soil, method of construction and dimensions of the tunnel cross section In the present study, a numerical analysis is proposed using finite element software Adina version 8.5 (A finite element code for soil and rock analyses). A numerical model is presented as a plane strain problem with two dimensions element of specific-node to present the soil elements and specific -node beam element to simulate the lining of the circular , elliptical , and horse shoe tunnel. The material of the lining was chosen as a reinforced concrete beam. The properties of the selected soil are as constant properties with an elastic linear model involve two elastic stiffness parameters: Young's modulus (Es) and Poisson's ratio (ν). With this numerical model, the horizontal and vertical boundary dimensions, as well as the interaction between the two tunnels parallel twins, according to the distance between the central lines of the tunnel; was also study the effect of the change in stiffness of soft clay soils using the three values of the modulus of elasticity (Es) and the Poisson ratio (ν). The effect of the thickness- radius ratio (t/r) on the displacement tunnel under the ground surface at a depth 6 times the radius of the tunnel from the surface of the ground until the center of the tunnel, also obtained the best shape tunnel in soft clay soil with different values for (Es) and (ν).Effect of three types of soft clay soil on the values of internal forces and displacement induced in lining has been determined. These types depend on values of (Es) and (ν). Comparisons between the values of the bending moments as well as the settlement induced at the horizontal line of the tunnel cross section with the maximum values have been determined. Design charts for the bending moments as well as settlement to pred