Research conclusions:Through comparison and analysis，as for lining structure，the beam － spring mode should be adopted in stress analysis． The load direction of groundwater pressure should align with tunnel radius，reaction force at the arch bottom should be determined through the comparison between buoyancy and the vertical total load ，and the interaction between ground and segment should be modeled by radial and tangential springs． Furthermore ，the dimension of sealing gasket in segment joints should be determined by numerical simulation ，the release coefficient of ground stress can be adopted to simulate the disturbance of surrounding formation due to tunneling ，and the control of the upward movement of tunnel lining should be realized by the minimum shield stress of grout．