打桩过程的非线性有限元分析

The non-linear finite element analysis in the process of piling

利用国际上最先进的大型通用有限元计算分析软件之一——ABAQUS中的ABAQUS/Explicit模块,采用对时间进行显式积分的格式对钢筋混凝土预制桩的打桩过程进行动态模拟,得到了桩体的设计参数(包括桩径、桩长、桩身材料等)、打桩机械参数(锤重、落高、能量、桩垫、锤垫等)对打桩过程的影响规律,对工程应用有一定的指导意义.

The dynamic simulation of precast reinforced concrete piles in the process of piling was carried out by using the format of explicit time integration based on the most advanced large-scale general finite element analysis software-explicit module in the ABAQUS.Effect of design parameters（the type of pile,pile diameter,length,shaft material,etc）,piling machine parameters and technics（hammer weight,height,energy,pile pad,hammer pad,etc） on the piling process were studied,providing some guidance on project application.