Study on Longitudinal Settlement Deformation Law and Influencing Factors of Railway Road and Bridge Transition Section
Based on the subgrade project of Lankaonan Station section of Zhengzhou-Xuzhou High-speed Railway,the settlement monitoring of transition section is carried out to analyze the temporal and spatial distribution of the settlement of transition section in view of the problem that the transition section is prone to uneven settlement.The finite element model of ABAQUS was established and its validity was verified.Based on the finite element model,the effects of foundation elastic modulus,filler,shape on the settlement of railway road and bridge transition section were further analyzed.The results show that the settlement value of each monitoring point changes with time,and the settlement changes greatly in the early stage,and gradually tends to be stable in the operating period after track laying.The filling and shape of transition section have little influence on the settlement,and the elastic modulus of foundation is the main factors for the settlement of the railway road and bridge transition section.
road and bridge transition sectionsettlement monitoringnumerical simulationsettlement lawfoundation treatmentstability
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