文献类型： 会议论文

第一作者： J. S. Templeton

作者： J. S. Templeton ¹ ;

作者机构： 1.SAGE USA, Inc.

会议名称： Offshore technology conference

主办单位：

页码： 2301-2315

摘要： This paper presents results of finite element analysis of the lateral interaction of well conductors with soil. Nonlinear, 3-D finite element analyses were performed for the site conditions at an actual deep water production system location as well as for comparison to results from centrifuge model tests. Both static and cyclic analyses are reported. The analyses incorporated elastic-plastic, work hardening models of soil behavior. The model of soil behavior included in these analyses was an elastic-plastic, work hardening model tied precisely to the site specific stress-strain soil behavior exhibited in high quality advanced soil test data or to model soil properties, as appropriate. The soil behavior modeling replicated both static and dynamic behavior of the site soils including both low level stiffness response and also the damping provided by soil hysteresis. The product of the analyses reported in this paper produced fundamentally-based p-y curves to represent the equivalent lateral soil reactions on the conductor. These equivalent p-y curves were appropriate for use in nonlinear dynamic analyses of soil-conductor interaction of the entire riser and conductor system. The results published in this paper achieve a new level for realism and accuracy in the characterization of lateral soil/conductor interaction. This is demonstrated through fundamentally based analysis by achieving simultaneously analyses accurately tied to high quality soil test data, producing and results more consistent with centrifuge test data than have previously been published.

分类号： P75