论文部分内容阅读
桩打入上体过程中,会产生显著的残余荷载。残余荷载对于桩上间的荷载传递具有显著的影响,从而制约桩基的总的特性。计算这种残余应力的方法已有许多,但是,这些方法或者过于简化,或者引入一些不正确的假定。本文分析了现有预测残余应力的各种方法审查了所有影响残余应力大小和分布的参数。利用波动方程,建立了预测打入非粘土中桩的残余应力的简化方法,给出了该方法的图表和方程。利用它们可以迅速估算残余应力的大小和实际测量值进行比较,表明该方法是可靠和有用的。
When the pile enters the upper body, it will produce significant residual loads. The residual load has a significant influence on the load transfer between the piles, thus constraining the overall characteristics of the pile foundation. There are many ways to calculate this residual stress, but these methods are either too simplistic or introduce some incorrect assumptions. This paper analyzes the existing methods for predicting residual stress and examines all parameters that influence the size and distribution of residual stresses. Using the wave equation, a simplified method for predicting the residual stress in non-clay piles was established. The charts and equations of the method were given. Using them to quickly estimate the magnitude of the residual stress and the actual measured values are compared, indicating that the method is reliable and useful.