预应力管桩承载力分析

本文根据预应力管桩的工程实例 ,通过对单桩竖向静载试验和基桩高应变动力测试结果的分析 ,结合预应力管桩单桩承载力经验公式的计算 ,指出在桩端持力层起伏变化较大的情况下 ,对于摩擦端承桩而言 ,桩端进入持力层的深度将直接影响单桩的极限承载力。

Analysis about the Bearing Capcity of Prestressed Pipe Pile

Base on the project instance of prestress pipe pile,by analyzing the result of the vertically static load test of single pile and the high strain dynamic testing of piles,and combined with the experience formula calculation about single pile capacity of prestress pipe pile,the paper points out that the supporting course depth entered by pile toe will directly influence the ultimate bearing capacity of single pile for frictional end-bearing pile at the condition of the supporting course of pile toe waving and changing.