石油勘探与开发2011，Vol.38Issue(2)：237-242,6.
海上自升式钻井平台新型筒型桩靴承载力
Bearing capacity of the bucket spudcan foundation for offshore jack-up drilling platforms
张浦阳 1丁红岩2
作者信息
- 1. 天津大学建筑工程学院
- 2. 天津大学滨海土木工程结构与安全教育部重点实验室
- 折叠
摘要
Abstract
To compare the bearing capacities of the traditional spudcan and the bucket spudcan, the effects of different-type spudcans on the rigidity of pile legs and the entire bearing capacity were analyzed in detail. Through the loading method of Swipe and constant displacement, this paper plots the spatial failure envelopes of the vertical-horizontal load, verticalmoment load, vertical-horizontal-moment load of the bucket spudcan and traditional spudcan under the mode of composite loading, as well as the spatial failure envelopes of the vertical static load-vertical cycling limit load, vertical static loadhorizontal cycling limit load based on these two spudcans under the mode of cycling loading. Theoretical study showed that the skirt system of bucket spudcan can increase the effective embedded depth, consequently improving the foundation rigidity and entire stiffness of a jack-up drilling platform. It is found that the bearing capacity of the horizontal load and moment load of the new spudcan is increased by at least 10％ than that of the traditional spudcan, especially the horizontal load being up to 20％ in the dyanmic load condition. Under the action of limit storm loading condition including wind, wave and flow loads, the entire bearing capacity of the jackup rig in stiff clay is increased by about 46 ％ with the bucket spudcan foundation compared to the traditional one.关键词
筒型桩靴/海上自升式钻井平台/承载力/数值模拟/破坏包络面分类
建筑与水利引用本文复制引用
张浦阳,丁红岩..海上自升式钻井平台新型筒型桩靴承载力[J].石油勘探与开发,2011,38(2):237-242,6.
