声波透射法在公路桥梁桩基检测中的典型缺陷分析

   雷,马  兰,沈 

陕西高速公路工程试验检测有限公司,陕西 西安  710086

  要:利用声波透射法对桩身完整性检测是准确有效的方法。本文结合工程实例,分析灌注桩桩身断桩、离析、桩头强度不足、桩底未嵌基岩等质量缺陷的各种波形图及产生缺陷的原因,为类似桩检测提供参考。指出对桩的承载力进行检测时,需结合静载荷法和高应变法进行测试。

关键词:声波透射法桩基检测缺陷

中图分类号U446          文献标识码A

The Crosshole Sonic Logging on the DefectsAnalysis

of Pile Testing of Highway Bridge

YUAN LeiMA LanSHEN Jian

Shaanxi Highway Engineering Test Co. Ltd.Xi'an 710086china

AbstractIt is an effective method to detect the integrity of pile by using the Crosshole Sonic Logging. Combined with engineering examplevariety waveform of quality defects and reasons of defects were analyzed such as bored pile body broken, segregationinsufficient strengthen of pile headbedrock deletant at the bottom and so onwhich provided a reference for the similar pile detection. The study showed that it should combined with static load method and the high strain method during the detection of the bearing capacity of the pile.

Key wordsthe crosshole sonic loggingdetection of pile foundationdefect