高水位沙土地基全联合角钢构架基础形式研究

Study on Foundation Forms of Full United Framework used in High-water Sand Foundation

结合特殊地质条件和工程设计情况,开展了高水位沙土地基的全联合角钢格构式构架的基础形式研究,通过合理选型、精心设计,研究出适合于高水位沙土地基条件下采用的新型构架基础形式——水循环成孔空心浮力深基础和特殊施工方案——水循环成孔灌注桩施工技术,同时与施工单位合作研发了适合该基础采用的专项施工机具,做到结构安全、构造简单、节省材料、施工方便。

Considering the special geological conditions and engineering design, carried out research on foundation forms of full united framework used in high-water sand foundation,through the reasonabe selection and elaborate design,hollow buoyancy of deep foundation based on water circulation into the holes and a construction technology of cast-in-place pile using circulating water were developed. At the same time ,special construction equipment used in the foundation were developed by cooperation with the construction unit, to do the structural safety, simple structure, material saving, convenient construction.