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In this paper, vibration induced by spatial coupled vibration of vehicle-track-bridge system of urban rail transportation is transferred to the basement of buildings by ambient soil, it causes the vibration of the buildings. Aiming at this problem, a model for spatial coupled vibration of vehicle track-bridge system is established firstly, the reactions at bottom of bridge piers are obtained by random...
In this paper, computational analysis of characteristics of deformation and internal forces in the loading system due to deep foundation pit excavation is conducted by establishing two-dimensional finite element model of excavation system including subsoil, and elastic bracing diaphragm based on FEM algorithm. Through computational studies, it is shown that the location of maximum horizontal displacement...
This paper investigates the influence of soil-structure interaction (SSI) on seismic responses of long-span space truss roof. First, a three-dimensional (3D) integral finite element (FE) model of a typical regular pyramids space truss structure consisting of space truss roof and support columns is developed. By applying FE method for near field soil and infinite element (IE) method for far field unbounded...
Shafts are channels linking the surface part and underground part of mines or hydropower stations, while the numerical simulation of super-deep shafts under construction is scarcely done. In order to promote the construction technology of shafts, a three dimensional FE analysis with surveillance records verification is carried out to simulate the full process of construction to analyze the stress...
It is extensive use to sacked sand drain in the engineering of soft soil foundation. Three-dimensional finite element model is established on the based of Biot consolidation theory, the model is loaded and calculated on the based of considering lateral deformation and spatial seepage, elastic-plasticity character of soil, construction stage loading progress etc. case study is analyzed to obtain the...
In this paper, cantilever support system of foundation pit is analyzed by ANSYS which is the large scale general software of finite element analysis, the stress and displacement of foundation pit and support system are available from ANSYS. According to a foundation pit project in Handan, on the basis of the finite element analysis results, traditional method is adopted to design and calculate the...
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