Research of city bridge passed through by subway construction in health monitoring and safety warning

摘要

With the rapid urban underground rail development, a considerable number of cities bridges face the impact of the MTR. The subway construction through the city bridges lead to a considerable degree of subsidence, deformation, cracks and even a partial collapse, severely affected the bridge function. As the Beijing Subway Line 10 passing through Xinxing Bridge for the study object, the author set up the health monitoring index system of the subway construction through the city bridge, and analyses the monitoring data and the impact for the processing of subway construction across the bridge.