单桩分析的双曲线模型及相应参数的确定  

Determination of Hyperbolic Model and Its Corresponding Parametens in Single-pile Analysis

作　　者：肖昭然[1] 

机构地区：[1]烟台大学土木系,烟台264000

出　　处：《土工基础》2002年第3期60-63,75,共5页Soil Engineering and Foundation

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.

关 键 词：单桩 双曲线模型 相应参数 剪应力 剪切位移 

分 类 号：TU473.13[建筑科学—结构工程]