振冲挤密法加固砂类土地基在海岸工程中的应用

Application of Vibro-compaction Technique to Strengthen Sandysoil Foundation in Coastal Engineering

为了有效控制软土地基上海岸建筑物的工后沉降和不均匀沉降,各种软基处理方法在海岸工程建设中得到了越来越广泛的应用。结合海岸工程软土地基处理实例,对振冲挤密法的地基加固机理、加固砂类土地基时的设计参数、施工及加固后地基的检测等进行了探讨,结果表明,振冲挤密处理砂类土地基是行之有效的,并对今后的施工和设计提出了一些参考性建议。

In order to effectively control the post-engineering subsidence, including uneven subsidence, of coastal structures built on soft-soil foundations, various foundation treatments have Been extensively applied in the coastal engineering. In this paper, an application case is discussed to expound the mechanism of the vibro-compaction technique for the foundation strengthening, the design parameters in the engineering for strengthening the sandy soil foundation and the detection after the strengthened-foundation engineering has been completed. It is shown from the strengthening results that the vibro-eompaction technique is effective for the treatment of the foundations in the sandy soil. Some suggestions are made, which might be helpful in the future design and engineering.