Study on Shield Tunnel Segment Mechanical Model with the Influence of Joints

In this paper,considering the structural specialties in shield tunnel segment force characteristics,an improved mechanical model that considers the effects of joints and changing distribution of soil resistant pressure on shield tunnel segment rings is proposed,an analytical solution to the internal forces of the lining under the loads such as hydrostatic pressure,vertical soil resistance,horizontal soil resistance changing in distribution,ground pressure and dead loads is derived from the elasticity center method of structural mechanics.