Analysis of ground vibration induced by passing trains in subway tunnel

With rapid development of urban subway construction, environmental vibration problem induced by passing trains in subway tunnel has attracted broad attentions of the society.Based on ABAQUS finite-element software,the soil dynamic viscoelastoplastic constitutive model based on modified Martin-Seed-Davidenkov model is used to describe the dynamic character of the soils.The equation describing the vibration load induced by the passing trains in subway tunnel and the model of the tunnel-soil interaction analysis are built.The characters of ground vibration induced by passing trains in subway tunnel are analyzed.Different influence factors on the characters of ground vibration are also considered in the paper.The results can provide some basic data for the line choice of subway tunnel and mitigation of environment vibration