对比分析基桩低应变检测中的波速校核

Comparative Analysis on Wave Velocity in the Low Strain Testing of Foundation Piles

低应变法是地基检测中最常用的桩身完整性检测方法之一,常作为基桩质量普查的一种方法。低应变检测中的波速对最终检测结果的判定起到至关重要的作用。通过试验分析,找到一种校核低应变波速的通用方法。试验通过钻取基桩芯样,并对芯样低应变波速和声波波速进行对比分析,找到二者之间的特定关系后进行拓展分析。

The low strain integrity testing is the most popular ways of pile integrity in the foundation detection,which often used as a common method for pile quality investigation. The wave velocity in the low strain integrity testing played an important role in judgement of the final test results. Through the experimental analysis,a general method to check the low strain wave speed was found. Test used core samples by drilling pile,and comparative analysis of low strain and acoustic wave velocity of core samples,then made expand analysis after found specific relationship between the two.