Dynamic Analysis Method for Finite Element Modeling of Pile-Bearing Embankments Considering Cracking

Abstract

This invention discloses a finite element modeling and dynamic analysis method for pile-supported embankments considering cracking, comprising: simplifying the pile-supported reinforced embankment to obtain its simplified structure; establishing a geometric model of the pile-supported reinforced embankment with pre-set cracks based on the geometric parameters of the simplified structure; assigning material and element properties to each structure of the geometric model of the pile-supported reinforced embankment with pre-set cracks and meshing; setting the loads and boundary conditions of the structure for a first analysis, and then establishing the above model of different sizes for analysis; performing static analysis on the pile-supported reinforced embankment model obtained in step 4 to determine the physical and mechanical parameters of the soil and structure of the pile-supported reinforced embankment geometric model; and, based on the determined physical and mechanical parameters of the soil and structure, performing dynamic analysis on the pile-supported reinforced embankment geometric model to verify the effectiveness of the model. This invention is simple to model, yields stable and reliable results, and fills the gap in finite element analysis of pile-supported embankments that did not consider the influence of cracked pavement.

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