摘要
桩土界面处土的扰动要远大于远离桩土界面处的土 ,在该扰动区内 ,土的应力应变关系为非线性。本文提出一个双曲线模型来描述扰动区内土的剪切应力与剪切位移的非线性关系。通过一系列室内单剪试验的结果验证了该双曲线模型 ;提出一个用于计算双曲线模型参数的近似公式 。
The remolding is much greater in the vicinity between pile and soil than that further away.In this vicinity the stress and strain relationship is nonlinear.A hypebolic relation of stress and desplacement is proposed.Through sesres of indoor shearing tests,a hyperbolic model is estabilished and a formula for approximative calculation is proposed.conparisons were made between results of in silu single pile test and FEM calculation.
出处
《土工基础》
2002年第3期60-63,75,共5页
Soil Engineering and Foundation
关键词
单桩
双曲线模型
相应参数
剪应力
剪切位移
single pile analysis,hypenbolic model,shear stress,shearing displacenment
