确定碎石桩复合地基桩土应力比的一种新方法

New Pile-soil Stress Ratio Calculation Method in Rushed Stone Pile Composite Foundation

探讨软基处理碎石桩径向变形机理 ,提出碎石桩体变形模式的纵横向异性 ,并根据桩土变形协调引入魏西克圆孔扩张理论和 p- y曲线法得出桩土应力比计算式 .

The radial deformation of the rushed stone pile in the soft foundation was discussed and the pile's different deformation mode in the vertical and horizontal was presented,as the result of it,the pile soil stress ratio expression is established on the principle of continuity and harmony of the stress strain of composite ground by Visic curvity expansive theory and p y curve method.