超声波法是目前利用广泛的桩基础检测方法。超声波法是利用埋在桩身中的声测管,通过声波发射头和接收传感器来测试桩身各个断面的波速,根据波速剖面可以定量评定桩身质量、混凝土的均匀性及强度参考值。声波透射法的优点是准确可靠,尤其在有缺陷的位置附近可以进行加密测量,从而对缺陷位置有更为准确的判断,但是不易做到随机抽检。 Ultrasonic method is widely used in the pile foundation detection method. Ultrasonic method is to use the acoustic probe embedded in the pile body to test the wave velocity of each section of the pile through the acoustic emission head and the receiving sensor. According to the wave velocity section, the pile mass, concrete uniformity and strength reference can be quantitatively evaluated. Acoustic transmission method has the advantage of being accurate and reliable, especially in the vicinity of the location of the defect can be encrypted measurement, so that the location of the defect has a more accurate judgment, but not easy to do random sampling.