俞宗卫，许魁，张小伟
（长安大学建筑工程学院，西安 710061）

[摘要]  对湿陷性黄土地区进行地基处理时，湿陷性处理效果的好坏直接关系到基础乃至整个建筑物的安全。孔内深层超强夯法( SDDC法)由于其技术、经济综合效益显著，近年来在湿陷性黄土地基处理中得到广泛的推广应用。通过具体工程实例，对SDDC桩复合地基的加固机理、设计参数、处理效果进行分析与讨论，为湿陷性黄土地区建筑物地基处理提供工程经验。
[关键词]  SDDC法；复合地基；湿陷性黄土；地基处理

    Application of SDDC in wet-sinkable yellow soil area's project
    Yu zongwei, Xu Kui, Zhang Xaowei
    ( Chang an University, Xi'an 710061, China )

Abstract:  Major objective of foundation treatment in wet-sinkable yellow soil is to remove wet- sinker, which has inclose relationship with the foundation even the whole buildings safety. Super Down Hole Deep Compaction (SDDC) is an effect method on foundation treatment. Owing to the fact that technical and economical benefit,it is widespread applied to the foundation treatment in wet-sinkable yellow soil in recent years. Based on the actual engineering project, SDDC method's consolidate mechanism, design parameter and treatment result are analysed and discussed, that gjving a engineering experience to the foundation treatment in wet-sinkable yellow soil area.
Keywords:  SDDC method; composite foundation; wet-sinkable yellow soil; foundation treatment