【摘要】 通过不同级配的碎石桩模型三轴试验，分析结果表明，在实际工程桩的围压水平下桩体的应力—应变关系近似于邓肯模型。着重探讨了围压级配对桩体变形特性的影响，并由此导出了几条对碎石桩设计理论有重要作用的结论更多还原

【Abstract】 By the analysis of triaxial test results of stone pile models with different gradation,this paper noticed the similarityr between pile stress strain relation under practising confining pressure level and Duncan Chang non linear model,and furthermore,discussed the effect of different confining pressure upon pile deformation properties and drew some conclusions that would enrich the design work.更多还原