摘要
给出了几种完整桩和有缺陷桩的机械导纳数学模型，通过分析瞬态激振导纳曲线共振峰频率和波速可获得桩身缺陷性质、位置和范围等有关参数，采用ＲＳＭ－０８Ｃ桩分析仪进行了模型桩试验，结果表明所述方法是可行的。
Presents the mathmatical models for sound and defective piles with the theory of mechanical impedance. It is possible to determine the location, boundary, section area and other parameters in defective piles by means of analyzing the resonance frequencies of mechanical admittance curves and wave speed under transient excitation. Some model piles with various defects are tested by using the RSM 08C piling analysis system.
