Application of Squeezed Branch Pile in Underground Building for Anti-floating Design
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摘要: 对目前地下建筑的各种抗浮措施进行了分析,根据挤扩支盘桩的受力特征,提出了采用挤扩支盘桩作为抗浮桩的新思路,给出了挤扩支盘桩单桩承载力的计算公式和构造要求,阐述了该方法的施工要点,并结合工程实例进行了技术经济分析。工程实践表明,采用挤扩支盘桩解决地下建筑抗浮问题是一种比较经济、合理的新方法。Abstract: Various current anti-floatting measures in the Underground building are analyzed. According to the bearing force character of squeezed branch pile, a new idea that squeezed branch pile is used to anti-floatting pile is suggested. The calculation formula and structure requests are given. The technology of construction for squeezed branch pile is elaborated too. A practical project is analyzed in technique and economy,it shows that it is very economical and reasonable that squeezed branch pile is used to solve the anti-floatting problem of the underground building.
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