Abstract
Pedestrian underpass is an effective measure to relieve the pressure of city traffic congestion. The influence of the underpass construction to the surrounding environment is inevitable, sometimes it may affect the the normal use of ground buildings and underground pipeline. The background of the research is based on Hangzhou Qingtai pedestrian tunnel. The main content is to use the ABAQUS finite element software to simulate CRD-engineering tunnel excavation by two models considering the road rigidity or not, to find the discipline of ground displacement and Stress caused by shallow buried tunnel excavation under existing road. Comparison research was done with measurement results of actual project site, getting consistent results. This study can provide guide for the similar engineering practices.
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