低应变反射波法在桩基检测中的运用及模拟分析

Application and Simulation Analysis of Low Strain Reflected Wave Method in Pile Foundation Detection

低应变反射波法是一种桩基检测方法,由于其自身的先进性和准确性,被广泛应用于桩身长度和桩身病害检测之中。低应变反射波法通过对比不同反射波的差异性对桩基属性进行检测,由于其自身的准确性和高效性,目前在国内外已大范围展开应用。文中对反射波法的机理进行了论述,并结合实例分析了低应变反射波法在实际工程中的应用,最后通过数值模拟分析了双速法在桩身长度测量中的应用,研究了测点间距对桩长计算精度的影响。

Low strain reflected wave method is a pile foundation detection method. Because of its progressiveness and accuracy, it is widely used in the detection of pile length and pile disease. Low strain reflected wave method detects the properties of pile foundation by comparing the differences of different reflected waves. Due to its accuracy and efficiency, it has been widely used at home and abroad. This paper first discusses the mechanism of the reflected wave method, and then gives the application of the low strain reflected wave method in practical engineering combined with an example. Finally, the application of two speed method in pile length measurement is analyzed through numerical simulation, and the influence of measuring point spacing on pile length calculation accuracy is studied.