桩基优化设计的单位荷载成本法*
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刘金皊, 李娜(中国联合工程公司,杭州310022)[摘要] 通过对影响桩基技术经济要素的分析,提出了桩基优化设计的简便方法。该方法以单位荷载成本为出发点,充分考虑了地质条件、上部结构形式、承台形式、成桩可行性等对桩基技术经济性的影响,对合理选择桩基设计参数和桩基设计优化具有重要的参考价值。[关键词] 桩基;优化设计;单位荷载成本;桩比表面积;布桩系数中图分类号:TU473 文献标识码:A 文章编号:1002-848X(2012) S2-0498-06Pile foundation optimizing design on the urut load cost methodLiu Jinling, Li Na( China United Engineering Corporation, Hangzhou 310022, China)Abstract: A simple method for optimizing design of pile foundation was proposed. This method based on the cost of the unit load, and took full account of the impact of the economy on the pile foundation in the aspect of the geological conditions, structure form, cap form and pile feasibility etc. It will guide you to select a reasonable pile foundation parameters. This method has an important reference value on pile foundation optinuzing design.Keywords: pile foundation; optinuzing design; unit load cost; pile specific surface area; piles arranged coefficient