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该文简要介绍了超声波检测基桩的平测法、斜测法和扇形扫测法,并对上述方法的声波曲线特征进行了对比分析。在超声波检测中,发现缺陷后先运用低应变法进行辅助验证,然后,综合运用加密测点、斜测法、扇形扫测法判定缺陷的范围,并绘出缺陷部位的纵向剖面图和水平断面图。从图中可以清晰地反映出缺陷随深度的渐变过程和范围,为施工处理提供了可靠的依据。
This paper briefly introduced the flat measuring method, skew measuring method and sector scanning method of ultrasonic testing pile, and compared the characteristics of the sonic curve of the above method. In the ultrasonic testing, the defect is detected by the low strain method, then the area of the defect is determined by using the encrypted measuring point, the oblique measuring method and the fan-shaped scanning method, and the vertical section and the horizontal section of the defect are plotted Figure From the figure can clearly reflect the gradual progress of the defect with the depth and scope of the construction provided a reliable basis.