松散回填砂地基的深层振密加固

Research on the deep vibrofloation compacting on loose backfill sand roundation

结合南方某重力式深水集装箱码头(底标高-17.0 m)沉箱后壁45.7 m范围的回填砂经深层振密处理这一工程实例,介绍了松散回填砂振密的技术要求、施工工艺和方法及振密效果的检测,并对施工与检测中的某些问题进行深入的探讨。

Taking an deep-sea container gravity wharf（datum mark - 17.0 m） for example, this paper presents the deep vibroflation compacting of domain of 45.7 m surrounding the cassion posterior wall. It also introduces the technical requirement, construction technology, and the vibrofloation compaction effect of the loose backfill sand, at the end of this paper, we discuss the further research on the some problems existed in the construction and detection.