竖向荷载下支盘桩的荷载传递性状及承载力的确定

支盘桩是钻孔灌注桩的一种异形桩。本文根据支盘桩的原体试验资料 ,深入分析了支盘桩竖向荷载的传递机理 ,分析了此类桩在竖向荷载的作用下桩的侧摩阻力和桩端阻力的发挥过程 ,以及支、盘在桩的受力过程中发挥的作用 ,从而指导支盘桩桩身的设计 ,提供了预估此类桩承载力的方法。

Vertical Load Transmission C haracter and Bearing Capacity of Cast-in -Place pile with Branches & Plates

Cast in place pile with branches & plates is a special shaped drilled cast in place pile.Based on the comprehensive pile test results,this paper is intended to serve the understanding of load transferring characteristics and change process of skin friction and end resistance of pile with branches & plates as well as the functions of branches and plates under vertical load.The understanding of these principles is considered to be essential foundation upon which the design of pile body and estimation of ultimate bearing capacity of this kind of pile are built.