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［摘 要］ 通过工程实例，对比分析了普通灌注桩承载力与后压浆法灌注桩承载力差异的原因，其一为通过后压浆法技术提高了灌注桩的侧摩阻力，其二为通过后压浆法技术提高了桩基的桩端承载力，并得出了通过后压浆法技术可以达到减少桩长、缩短工期、节约投资的结论。

 

［关键词］ 灌注桩 承载力 后压浆

 

1 概述

 

工程位置地处郑州市南三环路与大学路交叉口。改建后南三环路路幅宽70m，大学路段路幅宽6