摘要
通过对基桩做一定的假设后,将其简化为一维弹性杆件,根据基桩埋置于地下后的受力情况,推导了应力波在桩身中传播的阻尼波动方程.分别对完全摩擦桩、端承桩、摩擦端承桩分析了其位移和速度的动态响应,并对其多频谐振特性进行了分析.同时指出,可以在频率域中分析桩身的完整性,并根据桩底的嵌固系数来判断基桩与持力层的接触情况.
After some supposition, the pile is regarded as a 1D elastic rod. According to the forced status of the pile in soil, this article deduces a damping wave equation of the strain wave spreading in the pile. It also analyzes the dynamic response of displacement and velocity, and discusses the multi-frequency resonance characteristics. In the same time, it points out that it is possible to analyze the integrity of the pile in the frequency domain and estimate the contacting condition between the pile and the supporting layer based on the embedded coefficient.
出处
《中南林学院学报》
CSCD
北大核心
2005年第1期90-94,共5页
Journal of Central South Forestry University
基金
中南林学院青年基金项目(No.0204).
关键词
基桩
应力波
动态响应
谐振
嵌固系数
pile
strain wave
dynamic response
resonance
embedded coefficient
