海相淤泥土质下的水工构筑物深基坑施工技术研究

Research on Construction Technology of Deep Foundation Pit of Hydraulic Structure under Marine Silt Soil

本文以连云港市徐圩新区第二水厂及配套管网二期工程为例,通过分析工程地质、水文情况、支护设计及施工等方面,最后基坑采用较为经济安全、节约工期的拉森钢板桩+钢支撑围护体系,取得了良好的支撑效果,为今后类似沿海土质的工程深基坑支护施工提供技术参考。

This article takes the second phase of the second water plant and supporting pipeline network in Xuwei New district;Lianyungang city as an example.Through the analysis of engineering geology;hydrological conditions,support design and construction,etc.,Finally,the foundation pit adopts a relatively economical,safe,and time-saving Larsen steel sheet pile and steel support enclosure system,which has achieved a good support effect.lt provides technical reference for the support construction of deep foundation pits similar to coastal soils in the future.