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RESEARCH PAPERS

Stresses in a Submarine Topography Under Ocean Waves

[+] Author and Article Information
C. C. Mei

Massachusetts Institute of Technology, Cambridge, Mass. 02139

D. F. McTigue

Sandia National Laboratories, Albuquerque, N.M. 87185

J. Energy Resour. Technol 106(3), 311-318 (Sep 01, 1984) (8 pages) doi:10.1115/1.3231059 History: Received June 06, 1983; Revised January 24, 1984; Online October 22, 2009

Abstract

The problem of submarine slope stability is of interest to both offshore engineering and geology. In an uneven topography, the weight above a horizontal plane induces two-dimensional variation in the static stress field. The action of wave pressure, which changes with depth, further introduces excess pore pressure and dynamic stresses in the sea bottom. In the present paper, we combine a simple analytical theory for the static stress by the present authors, and the recent solution by Mei and Foda (6) for wave-induced stresses in a plane poro-elastic sea bed to account for mild bottom slope and wave shoaling, and obtain the effective stress field in a submarine topography under sea waves. Sample results are given for a ridge and a canyon. In particular, the dynamic pore pressure and the combined static and dynamic effective stresses are presented.

Copyright © 1984 by ASME
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