中国舰船研究2016，Vol.11Issue(2)：66-71,6.DOI:10.3969/j.issn.1673-3185.2016.02.010
桩靴支护结构对桩端极限承载力的影响
The effect of optimized structures on the spudcan bearing capacity
摘要
Abstract
Based on the engineering practice about the pile-soil penetration interaction of Shengli No.5 Jack-up in Bohai Bay, a numerical model for the pile-soil penetration process is established to investigate the bearing capacity of an optimized spudcan structure which is then compared to that of the real spudcan. The results show that the spudcan bearing capacity first increases and then decreases from inside to outside along the radial and vertical optimized position. At the radial r'/r=0.6 position and vertical h/H=0.4 posi⁃tion, the optimized structure satisfies expectation. It is concluded that the supports in reasonable positions can increase the spudcan bearing capacity and maintain the stability of the penetration process by changing the flow mechanism of soil, which decreases the impulse and velocity deficit of the soil at the top and bot⁃tom of the spudcan.关键词
自升式平台/桩靴/极限承载力/支护/数值模拟Key words
jack-up platform/spudcan/bearing capacity/supports/numerical simulation分类
交通工程引用本文复制引用
张兆德,吕国兴,张心..桩靴支护结构对桩端极限承载力的影响[J].中国舰船研究,2016,11(2):66-71,6.基金项目
国家自然科学基金资助项目 （）
