钻孔灌注桩桩端后注浆技术在建筑桩基工程中的应用

Application of Pile Tip Post Grouting Technology of Drilled Cast-in-place Pile in Pile Foundation Engineering of Architecture

通过工程实例介绍钻孔灌注桩后注浆工艺及效果,分析后注浆技术提高桩侧摩阻力和桩端阻力的机理。试验表明桩端后注浆技术可作为提高钻孔灌注桩承载力的有效措施。

The article introduces the technology and effect of post grouting of drilled cast-in-place pile based on engineering cases, and analyzes the mechanism of improving pile side friction resistance and pile tip resistance of post grouting technology. The test shows pile tip post grouting technology may be used as effective measures for improving bearing capacity of drilled cast-in-place pile.