Centrifuge modeling of suction bucket foundations for platforms under ice-sheet-induced cyclic lateral loadings

This paper presents the results of a series of centrifuge model tests performed to study the behavior of suction bucket foundations for a tension leg platform in the Bohai Bay, China. The target lateral loadings were from ice-sheet-induced structural vibrations at a frequency of 0.8-1.0 Hz. The resu...

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Bibliographic Details
Published in:Ocean Engineering
Main Authors: 张建红, Zhang LM, 鲁晓兵, Zhang, JH (reprint author), Tsing Hua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
Format: Article in Journal/Newspaper
Language:English
Published: 2007
Subjects:
Suction Bucket Foundation
Laterally Loaded Pile
Dynamic Loading
Centrifuge Modeling
Liquefaction
Pore Water Pressure
Pile Groups
Embankments
Sands
Engineering
Oceanography
Marine
Civil
Ocean
gases > liquefaction
pore pressure
levees
液化
liquefaction of gases
liquefying
neutral stress
pore-water pressure
dikes (embankments)
berms
dikes (manmade)
revetments
beach berms
Ice Sheet
Online Access:http://dspace.imech.ac.cn/handle/311007/33977
https://doi.org/10.1016/j.oceaneng.2006.08.009
Description
Summary:This paper presents the results of a series of centrifuge model tests performed to study the behavior of suction bucket foundations for a tension leg platform in the Bohai Bay, China. The target lateral loadings were from ice-sheet-induced structural vibrations at a frequency of 0.8-1.0 Hz. The results indicate that excess pore water pressures reach the highest values within a depth of 1.0-1.5 in below the mud line. The pore pressures and the induced settlement and lateral displacement increase with the amplitude of the cyclic loading. Two failure modes were observed: liquefaction in early excitations and settlement-induced problems after long-term excitations. (c) 2006 Elsevier Ltd. All rights reserved.

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