干振—水冲法碎石桩施工工艺及其应用

Construction Process and Application of Dry Vibration Wash Boring Method

分析了干振法与振冲法碎石桩施工工艺的优劣，提出一种新的碎石桩施工工艺——干振水冲法，并从理论上进行了论证。

Dry vibration wash boring method is one of stone column.Using this new method to replace traditional vibroflotation or dry vibration method,both of new construction process and good economic benefit can be obtained.The dry vibration wash boring methods operating principle is to apply the engineering properties of artificial vibration liquefaction in sandy bed.This is a key which construction can be carried out successfully.The feasibility and reasonability of the new method are identified by a port engineering in Zhengjiang.The soil treatment and loading test are correspond with national standards and design requirements.As a new construction process,dry vibration wash boring method is neither dry vibration operation nor vibroflotation operation.Combining with two operations advantages,the new method can not only save water,but also have a perfect adaptability for the construction stratum.So,it is a good treatment measures for the soft foundation in the distribution district.