Elementary Analysis of Technique of Boreholing and Sampling in Offshore Soil Improved with Cement Deep Mixing Method

The paper presents the specific technique for boreholing and sampling in offshore soft soil improved with the cement deep mixing method(CDM)from the point of view of the machinery and equipment and their operation for the boreholing and sampling in the CDM improved soft soil and precautions to be taken during the boreholing and sampling operations.The analysis is also a summary of the experience in boreholing and sampling in CDM improved offshore soft soil in China as well as a discussion of boreholing and sampling techniques for CDM improved offshore soft soil.