深厚软土地基大型浅圆仓上部结构-桩基共同作用下的动态施工过程有限元模拟分析

FEM Analysis of Dynamic Construction Process Under the Interaction Effect of Large Squat Silo Superstructure-pile in Deep Soft Soil

采用大型有限元分析软件MIDAS-GTS建立反映浅圆仓上部结构动态施工过程的上部结构-桩基-地基共同作用的三维数值分析模型,对施工过程中整体结构及地基的受力变形情况进行动态模拟,通过三维数值分析,得到施工过程中管桩及桩间土的受力情况变化及变形情况,得到其随施工过程中的变化发展规律,为类似工程的设计及施工提供参考。

To investigate the interaction effect of large squat silo, MIDAS-GTS is used to build the 3D finite element model （FEM） of squat silo superstructure-pile-soil interaction. The deformation of the whole structure and foundation is simulated in the construction stage. The three-dimensional numerical analysis achieves the force and deformation of the pipe pile foundation, and their developing law in the dynamic construction process. It provides a reference for the design and construction of similar projects.