Abstract: The working principles and the applied characteristics of the integrity tests for cement-soil column by Deep Mixing Method (DMM )were analysed,by means of the testing practices.Based on a testing application of a certain composite ground by DMM,the judge method of the standard penetration test was presented.Finally,the paper gives some of the test results and discussion about the advantages of the low-strain vibration test applied on the cement-mixed column.The documentation gives guidance for future tests for the composite ground stabilized by DMM.

Key words: cement-mixed column, static loading test, standard penetration test, low-strain vibration test

摘要： 笔者通过深层搅拌桩复合地基的检测,分析了搅拌桩各类检测方法工作机理及应用特点.结合具体的工程实例,提出了搅拌桩检测方法中标贯试验的判定标准.同时讨论了搅拌桩质量检测中应力波技术的应用机制和特点.本文对今后搅拌桩工程检测具有参考价值.

关键词: 水泥搅拌桩, 静载荷试验, 标准贯入试验, 桩基低应变检测