桩基负摩阻力群桩效应分析

Analysis on Piles Effect in Negative Friction Drag of Foundation Pile

论述了负摩阻力产生的条件及负摩阻力随桩基类型不同对桩基承载力和沉降的影响有所区别； 指出关于负摩阻力标准值计算的有关方法， 同时对负摩阻力在群桩效应下基桩的下拉荷载标准值的计算方法进行了探讨。

The paper expounds the condition in which negative friction drag is produced,the negative friction drag affects the load capacity of foundation pile in a different way as there are different types of foundation piles.Methods to calculate the standard value of negative friction are presented.The paper also explores the calculation method about the standard value of pulling load of foundation pile when negative friction drag is under the effect of foundation piles.