应力波反射法在检测桥梁基桩中缺陷方向性问题探析

Analysis on Defect Directivity Prolbem in Testing Bridge Foundationpiles by Stress Wave Reflection Method

目前在测试基桩桩身质量的低应变方法中,应力波反射法应用得非常广泛,它具有测试方便、速度快、测试波形易于判读等特点,但也存在缺陷方向性与检测结果的不确定性等问题。研究应力波反射法中缺陷方向性对测试波形的影响有助于提高工程质量。

Stress wave reflection method is widely used in low-strain method of testing foundation pile shaft quality at present, it has some peculiarities such as convenient test, fast speed, easily interpretating measurement waveform etc. But the question between defect directivity and uncertainty of test results exists. Research on the effects of defect directivity in stress wave reflection method on measurement waveform can help to improve the construction quality.