崔天宝
    （郑州铁路局郑州科研所 450052）

[提要] 瞬态敲击法是一种简便、有效的检测桩身质量的方法。本文简要地介绍了该法的基本原理、检测方法及判定准则，并列举了几个工程实例。
[关键词]  瞬态敲击法 动测  缺陷  桩基 波动方程

Instantaneous Hammering Method which is a simple and efficient method has been widely used in inspecting the defects of pile foundation. Its basic theory, testing procedure and judging principles are described briefly in this paper. Some testing examples are given as well.
Keywords: instantaneous hammering method; dynamic  inspection; defect; pile foundation; wave equation