挤扩支盘桩的承载性能与工程应用

Testing study and engineering application of multi-brace-disk piles

通过挤扩支灌注盘桩在福州地区工程应用实例的设计施工、理论分析和现场试验,探讨该桩型在软土地区的承载性能,证明挤扩支盘桩的可行性,提出承载性能影响因素、施工质量控制和技术应用,通过经济性分析进一步说明其性能价格比好、经济效益显著,是一种安全可靠、节省造价的新工艺。

Through the design, construction, panding multi-brace-disk piles in Fuzhou area, theoretical analysis and field tests of extruding-exthis paper focuses on load-transmission mechanism of soft earth areas, feasibility study of multi-brace-disk piles, influential factors on load capacity, construction quality control and technological application. On the basis of economic analysis, its super cost performance ratio is revealed. It is indicated that it is a safe. cost-efficient new process.