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| Project Number | 612 |
| Date of Summary | May 22, 2008 |
| Subject | Analysis of Conservatism in Offshore Foundation Design |
| Performing Activity | Texas Engineering Experiment Station (TEES) |
| Principal Investigator | Drs. Robert Gilbert and Richard Mercier |
| Contracting Agency | Minerals Management Service |
| Estimated Completion | May 18, 2009 |
| Description |
The objectives of this project are to identify and analyze the factors
that may contribute to the apparent conservatism in fixed-structure
foundation design and to provide guidance on how to incorporate this
information into design standards. The research will consist of four
tasks: Task 1. Qualitative Analysis: Compile, analyze and summarize available data for platforms where the foundation unexpectedly survived hurricane loading in Andrew, Lili, Ivan, Katrina, or Rita. Task 2. Quantitative Analysis: For a subset of platforms selected from Task 1, perform a detailed analysis of the foundation system to study relationships between system capacity, axial and lateral capacity for individual piles, and the base shear and overturning moment applied to the foundation system by the hurricane. Task 3. Design and Assessment Implications: The results from Tasks 1 and 2 will be synthesized into implications on design and assessment, including possible ways in which the methods for design and assessment could be revised, such as the inclusion of "correction" factors in estimating foundation capacity and stiffness. Task 4. Expert Panels: Additional review, input and recommendations related to the study will be solicited directly from the industry via an Expert Panel comprised of approximately ten representatives from MMS, operators, and consultants. |
| Progress | Contract awarded May 19, 2008. |
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