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Evaluation of Seabed Stability of Offshore Wind Farm for Donghai Bridge(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2012年01期
Page:
50-55
Research Field:
Publishing date:

Info

Title:
Evaluation of Seabed Stability of Offshore Wind Farm for Donghai Bridge
Author(s):
ZHANG Yong-li;  LI Jie
1. Guodian United Power Technology Co., Ltd, Shanghai 200062, China; 2. Department of Building Engineering, Tongji University, Shanghai 200092, China
Keywords:
offshore wind farm;  seabed stability;  Biot consolidation theory;  analytical method;  numerical method;  soil
PACS:
TU311.2
DOI:
-
Abstract:
According to the wave-induced soil shear failure criterion based on the total stress method and the liquefaction criterion based on the effective stress method, authors analyzed the seabed stability of offshore wind farm for Donghai Bridge, and discussed effective normal stress, oscillating normal stress and stress angle contours of the soil under three wave conditions, namely, mean wave height, once-in-a-century wave height and breaking wave height, and the influence of wave height on the seabed stability was obtained. Results show that the method can provide reference for the foundation design of offshore wind farm and location.

References:

[1] BARENDS F B J.Interaction Between Ocean Waves and Sea-bed[C]//GECD.On Geotechnical Engineering for Coastal Development:Theory and Practice on Soft Ground(Geot-Coastal'91).Yokohama:GECD,1991:1091-1108.
[2]BEA R G,WRIGHT S G,SIRCAR P,et al.Wave-in-duced Slides in South Pass Block 70,Mississippi Delta [J].Journal of Geotechnical Engineering,1983,109(4):619-644.
[3]PUTNAM J A.Loss of Wave Energy Due to Percolation in a Permeable Sea Bottom[J].Transactions of the American Geophysical Union,1949,30(3):349-356.
[4]SLEATH J F A.Wave-induced Pressures in Beds of Sand[J].Journal of the Hydraulics Division,1970,96(2):367-378.
[5]LIU P L F.Damping of Water Waves Over Porous Bed[J].Journal of the Hydraulics Division,1973,99(12):2263-2271.
[6]MASSEL S R.Gravity Waves Propagated over Permeable Bottom[J].Journal of the Waterways Harbors and Coastal Engineering Divison,1976,102(2):111-121.
[7]NAKAMURA H,ONISHI R,MINAMIDE H.On the Seepage in the Seabed Due to Waves[C]//JSCE.Proceedings of 20th Coastal Engineering Conference.Taipei:JSCE,1973:421-428.
[8]MOSHAGEN H,TORUM A.Wave Induced Pressures in Permeable Seabeds[J].Journal of Waterways Harbors and Coastal Engineering Division,1975,101(1):49-57.
[9]OKUSA S.Wave-induced Stresses in Unsaturated Submarine Sediments[J].Geotechnique,1985,35(4):517-532.
[10]BIOT M A.General Theory of Three-dimensional Consolidation[J].Journal of Applied Physics,1941,12(2):155-164.
[11]ZEN K,YAMAZAKI.Mechanism of Wave-induced Liquefaction and Densification in Seabed Foundations[J].Soils and Foundations,1990,30(1):90-104.
[12]TSAI C P.Wave-induced Liquefaction Potential in a Porous Seabed in Front of a Breakwater[J].Ocean Engineering,1995,22(1):1-18.
[13]JENG D S.Soil Response in Cross-anisotropic Seabed Due to Standing Waves[J].Journal of Geotechnical and Geoenvironmental Engineering,1997,123(1):9-19.
[14]JENG D S.Wave-induced Seabed Instability in Front of a Break Water[J].Ocean Engineering,1997,24(10):887-917.

Memo

Memo:
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Last Update: 2012-03-20