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RESEARCH PAPERS: Offshore Mechanics

A Slender-Body Theory for a Rigid Pile Under Static or Low-Frequency Axial Loading

[+] Author and Article Information
S. N. B. Fallou, C. C. Mei

Department of Civil Engineering, Massachusetts Institute of Technology, Cambridge, Mass. 02139

J. Energy Resour. Technol 107(4), 433-440 (Dec 01, 1985) (8 pages) doi:10.1115/1.3231215 History: Received March 20, 1984; Revised March 29, 1985; Online October 22, 2009

Abstract

If the seabed is modeled as a poroelastic medium, the stresses and pore pressure induced by sea waves attacking pile-supported structures can be approximately treated by a quasi-static, single-phase theory almost everywhere except near the unsealed mudline. Therefore, the theory of a pile in an elastic half-space is fundamental. A survey of literature indicates that existing theories are only numerical; the few analytical formulas are based on either intuitive argument or interpolation of numerical work. A more systematic theory is first developed here for an axially loaded pile by employing slender-body approximation to a pair of integral equations. The results are used to calculate the pore pressure in the seabed around low-frequency loading.

Copyright © 1985 by ASME
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