桩基完整性检测桩头响应的频域状态转移解法  

The Frequency Domain State Transfer Method in Pile Integrity Testing

作　　者：袁健[1] 朱德懋[1] 张永康[2] 

机构地区：[1]南京航空航天大学振动工程研究所 [2]江苏理工大学机电学院

出　　处：《振动工程学报》1998年第1期58-64,共7页Journal of Vibration Engineering

摘　　要：从桩在频域的动力学方程出发，采用频域状态转移解法推导了桩头和桩底处速度－力矢量之间的关系。给定桩顶激振力、辐射阻抗和桩底边界条件，便可求得桩头速度响应。文中还给出了该方法对于Ｋｕｈｌｅｍｅｙｅｒ桩－土模型的应用。本方法物理概念清楚且运算简单。The computation of forward problem concerned in pile integrity test is discussed.Based on the dynamic elasticity theory and a model with a pile buried in stratified soil,a state transfer method in frequency domain is derived.The simulation examples show that the computation method developed in the paper is rational and applicable. It can be expected to be a powerful technique with distinct physical meaning for pile soil parameters inversion.

关 键 词：桩基 完整性检测 桩头响应 频域状态转移解 

分 类 号：TU473.1[建筑科学—结构工程]