Analysis of the Impact of Small Radius Shield Tunnel Construction on Underpassing Buildings in Changzhou Area
During the construction process of tunneling through buildings,shield tunneling can cause settlement and tilting of buildings.This paper takes a small radius curve double track shield tunneling section of Changzhou Metro Line 2 as the background,and uses numerical simulation methods to study the settlement characteristics of buildings during the shield tunneling process.The research results indicate that after the shield tunneling,buildings 1 to 3 experienced varying degrees of settlement and deformation.Among them,building 1 was less affected in the case of lateral tunneling,while buildings 2 and 3 were more affected in the case of direct tunneling,with a maximum settlement of 4.79 mm.The settlement and inclination of each building meet the control requirements.