连续弹性体模型下桩的动刚度表达式及与静刚度的关系

A Study on Dynamic Stiffness Based on Continuous Elastic Model of Pile

本文根据有限长桩问题的解析解，推导出连续弹性体模型下基桩动、静刚度及静动刚度比的理论表达式，在此基础上研究分析了各有关参数对动刚度的影响，并研究了各种参数影响下动刚度与静刚度之间的关系。

Based on continuous elastic model, some theoretical formulae of pile dynamic and static siffness are obtained from the analytical solution of vertical vibration of piles with finite length, and the influences of some relevant parameters of piles and surrounding soil on the dynamic and static stiffness are to be analyzed. It is indicated that variation principle of ratio of dynamic stiffness to static stiffness is very complicated, and therefore, the application of the ratio should be very carefully studied.