低应变检测法在灌注桩完整性检测中的应用

Application of Integrity Testing of Bored Cast-in-Place Pile by Low Strain Method

介绍了低应变反射波检测法的工作原理。分别对完整桩、缩颈(夹泥)桩、扩径桩、离析桩、断裂桩、不良焊接桩及桩头疏松等典型时域曲线进行解析,探讨不同桩基质量问题在时域曲线的反应表现,为同类检测提供参考。并提出分析处理时的注意事项。

Introduce the testing principle of low strain reflected wave method. The pile integrity, pile contract （containing slurry）, pile expansion, concrete eduction of the pile, crack on the pile, bad weld, loosen on the top of the pile and the time field analysis of these defects are Analyzed. Discuss the different time field curves with different pile quality. The referents and the notices on the similar tests are proposed.