摘要
本文提出了分析桩基贯入过程的显式有限元数值方法,详细描述了利用节点约束法对桩锤和桩的头部撞击时相互作用的接触面及桩体侧面与周围地基间的滑移接触面的模拟过程的细节。文中采用八节点六面体单元对桩锤、桩体和地基进行有限元离散化,用摩擦接触单元来模拟桩-土接触面,用中心差分法对运动方程进行数值积分。文中提供了利用DYNA-3D程序对椎基贯入过程分析的数值结果。
A numerical procedure is presented for the analysis of pile driving problem by explicit finite element method. Simulation treatment are described for contact-impact interfaces of the hammer and pile top, and for contact-sliding interfaces of pile and soil by nodal constraint method. Discretizations of hammer, pile and soil are achieved by the use of 8-nodes solid elements. Interfaces of pile and soil are simulated by frictional contacts, and the equations of motion are integrated by the central difference method. Numerical results by program DYNA-3D for analysis of pile driving are provided.
出处
《地震工程与工程振动》
CSCD
北大核心
1992年第1期45-56,共12页
Earthquake Engineering and Engineering Dynamics
