本文描述了通过应力波测量预估桩的承载力的分析方法。在有限元模型中,通常用实测速度作为波动方程分析的输入边界条件,如果不给以适当的补充和完善,就有可能产生很大的数值误差。本文建议了一种用速度积分得到位移记录的分析途径,并证明了其有效性。最后还用实例说明了关于数值模型处理的若干问题。 This paper describes an analytical method to predict the bearing capacity of piles by stress wave measurements. In the finite element model, the measured velocity is usually used as the input boundary condition for wave equation analysis. If not properly supplemented and perfected, great numerical errors may occur. In this paper, we propose a way to get displacement records by velocity integration and prove its validity. Finally, some examples about numerical model processing are given.