In this paper, from two aspects, the deformation of profile and cross-section, serviceability state is analyzed in detail. The above results provide a reliable basis for the future research on the dynamic response of caisson foundation.Ībstract: Based on the typical adjacent project of extension of LianHuo expressway which is constructed on WenXiang tunnel, the finite difference software, Flac3D, is adopted to stimulate the process of the construction. Looked from the overall,the anti-seismic property of the caisson foundation is good. We sure the bond of the caisson foundation bottom and the below soil layer is firm and the relative displacement is only 1.3 mm. Through the analysis on these curves, we know the maximum values of the acceleration, the velocity and the displacement of the top portion of the caisson foundation are 393.6 cm/s 2, 75.9 cm/s, 28.5 cm, and the maximum rotation angle of the caisson foundation is 0.08°.
We also obtain the rotation angle time-history curve and the relative displacement time-history curve of two key points at the bottom of the caisson foundation. By applying the horizontal (x direction) seismic waves at the bottom of the model, we simulate the earthquake action to the caisson foundation and the soil body around it and obtain the time-history curves of the acceleration, the velocity and the displacement of the key points in the model in x direction.
Abstract: Based on the software FLAC3D, we set up the dynamic calculation model.