本文分析了两类常见的沉管灌注桩和人工挖孔灌注桩的工艺特点，桩基质量问题的产生原因及动力检测方法，指出要准确地判断两类桩基质量问题，必须准确计算缺陷的位置，对桩基的工艺特点和施工过程有深刻的认识，对动力检测理论有透彻的理解。同时，对人工挖孔灌注桩动力检测的特殊性进行了专门分析 This paper analyzes the process characteristics of two kinds of common immersed and cast-in-place bored piles and artificial bored cast-in-place bored piles, the causes of the pile foundation quality problems and the dynamic test methods. It points out that to accurately judge the quality problems of two types of pile foundations, Position, deep understanding of the process characteristics of the pile foundation and the construction process, a thorough understanding of the power detection theory. At the same time, a special analysis of the particularity of dynamic detection of artificial digging and pouring pile is made