Wave-induced progressive liquefaction in loosely deposited seabed

Luan Yixiao

doi:10.3969/j.issn.0253-4193.2017.09.010

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Luan Yixiao. Wave-induced progressive liquefaction in loosely deposited seabed[J]. Haiyang Xuebao, 2017, 39(9): 101-109. doi: 10.3969/j.issn.0253-4193.2017.09.010

Citation:

Luan Yixiao. Wave-induced progressive liquefaction in loosely deposited seabed[J]. Haiyang Xuebao, 2017, 39(9): 101-109. doi: 10.3969/j.issn.0253-4193.2017.09.010

Luan Yixiao. Wave-induced progressive liquefaction in loosely deposited seabed[J]. Haiyang Xuebao, 2017, 39(9): 101-109. doi: 10.3969/j.issn.0253-4193.2017.09.010

Citation:

Luan Yixiao. Wave-induced progressive liquefaction in loosely deposited seabed[J]. Haiyang Xuebao, 2017, 39(9): 101-109. doi: 10.3969/j.issn.0253-4193.2017.09.010

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Wave-induced progressive liquefaction in loosely deposited seabed

doi: 10.3969/j.issn.0253-4193.2017.09.010

Luan Yixiao

Wuhan University of Technology, Wuhan 430070, China

Received Date: 2017-06-12
Rev Recd Date: 2017-08-05

Abstract

Abstract

Quaternary newly deposited loose seabed soil widely distributes in offshore area in the world. Wave-induced residual liquefaction in loose seabed floor brings great risk to the stability of offshore structures in extreme climate. In this study, wave & current-induced residual liquefaction in loose seabed floor has been investigated comprehensively adopting FSSI-CAS 2D incorporating Pastor-Zienkiewicz-Mark Ⅲ(PZⅢ) soil model which is a validated integrated numerical model. The time history of wave & current-induced pore pressure, effective stress, stress angle are discussed. The variation process of progressive liquefactionis illustrated in detail. The computational results confirm that the wave & current-induced liquefaction in loose seabed soil is progressively downward, initiating at seabed surface. Besides, it is found that vertical distribution of oscillatory pore pressure, and time history of stress angle could be taken as indirect indicator to judge the occurrence of wave-induced residual liquefaction. The developing process of the progressive liquefaction is analyzed by stress statement data of seabed soil.
- progressive liquefaction,
- loose seabed floor,
- wave loading,
- FSSI-CAS 2D,
- PZⅢ soil model

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References(32)

References

Biot M A. Theory of propagation of elastic waves in a fluid-saturated porous solid. Part 1:Low frequency range[J]. Acoustical Society of America, 1956, 28(2):168-179.

Lee T C, Tsai C P, Jeng D S. Ocean wave propagating over a porous seabed of finite thickness[J]. Ocean Engineering, 2002, 29(12):1577-1601.

Jeng D S. Wave-induced sea floor dynamics[J]. Applied Mechanics Reviews, 2003, 56(4):407-429.

Seed H B, Martin P O, Lysmer J. Pore-water pressure changes during soil liquefaction[J]. Journal of Geotechnical Engineering ASCE, 1976, 102(4):323-346.

Seed H B, Rahman M S. Wave-induced pore pressure in relation to ocean floor stability of cohesionless soils[J]. Marine Geotechnology, 1978, 3(2):123-150.

Sassa S, Sekiguchi H, Miyamoto J. Analysis of progressive liquefaction as a moving boundary problem[J]. Géotechnique, 2001, 51(10):847-857.

Dunn S L, Vun P L, Chan A H C, et al. Numerical modeling of wave-induced liquefaction around pipelines[J]. Journal of Waterway, Port, Coastaland Ocean Engineering, 2006, 132(4):276-288.

Pastor M, Zienkiewicz O C, Chan A H C. Generalized plasticity and the modelling of soil behaviour[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1990, 14(3):151-190.

Zienkiewicz O C, Chang C T, Bettess P. Drained, undrained, consolidating and dynamic behaviour assumptions in soils[J]. Géotechnique, 1980, 30(4):385-395.

Jeng D S, Ou J. 3D models for wave-induced pore pressures near breakwater heads[J]. Acta Mechanica, 2010, 215(1/4):85-104.

Ou J. Three-dimensional numerical modelling of interaction between soil and pore fluid[D]. Birmingham, UK:Universtity of Birmingham, 2009.

王良民, 叶剑红, 朱长歧. 近海欠密实砂质海床内波致渐进液化特征研究[J]. 岩土力学, 2015, 36(12):3583-3588. Wang Liangmin, Ye Jianhong, Zhu Changqi. Investigation on the wave-induced progressive liquefaction of offshore loosely deposited sandy seabed[J]. Rock and Soil Mechanics,2015, 36(12):3583-3588.

Chan A H C. A unified finite element solution to static and dynamic problems of geomechanics[D]. Swansea Wales:University of Wales, 1988.

Ye J H. Numerical analysis of wave-seabed-breakwater interactions[D]. Dundee, UK:Universtity of Dundee, 2012.

Hsu T J, Sakakiyama T, Liu P L F. A numerical model for wave motions and turbulence flows in front of a composite breakwater[J]. Coastal Engineering, 2002, 46(1):25-50.

Ye J H, Jeng D S, Wang R, et al. Validation of a 2D semi-coupled numerical model for Fluid-Structures-Seabed Interaction[J]. Journal of Fluids and Structures, 2013, 42(4):333-357.

Zienkiewicz O C, Chan A H C, Pastor M, et al. Computational Geomechanics with Special Reference to Earthquake Engineering[M]. Chichester:John Wiley & Sons Ltd, 1999.

Miyamoto J, Sassa S, Sekiguchi H. Progressive solidification of a liquefied sand layer during continued wave loading[J]. Géotechnique, 2004, 54(10):617-629.

Sassa S, Sekiguchi H. Wave-induced liquefaction of beds of sand in a centrifuge[J]. Géotechnique, 1999, 49(5):621-638.

Hsu J R, Jeng D S. Wave-induced soil response in an unsaturated anisotropic seabed of finite thickness[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1994, 18(11):785-807.

Lu H B. The research on pore water pressure response to waves in sandy seabed[D]. Changsha:Changsha University of Science & Technology, 2005.

Tsai C P, Lee T L. Standing wave induced pore pressure in a porous seabed[J]. Ocean Engineering, 1995, 22(6):505-517.

Mizutani N, Mostarfa A, Iwata K. Nonliear regular wave, submerged breakwater and seabed dynamic interaction[J]. Coastal Engineering, 1998, 33(2/3):177-202.

Mostafa A, Mizutani N, Iwata K. Nonlinear wave, composite breakwater, and seabed dynamicinteraction[J]. Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 1999, 25(2):88-97.

Ye J H, Jeng D S, Wang R, et al. Numerical simulation of wave-induced dynamic response of poro-elasto-plastic seabed foundation and composite breakwater[J]. Applied Mathematical Modeling, 2015, 39(1):322-347.

Ye J H, Wang G. Seismic dynamics of offshore breakwater on liquefiable seabed foundation[J]. Soil Dynamics and Earthquake Engineering, 2015, 76:86-99.

Teh T C, Palmer A C, Damgaard J S. Experimental study of marine pipelines on unstable and liquefied seabed[J]. Coastal Engineering, 2003, 50(1/2):1-17.

Ye J H, Jeng D S. Response of porous seabed to nature loadings:Waves and currents[J]. Journal of Engineering Mechanics, ASCE, 2012, 138(6):601-613.

Ye J H. Numerical modelling of consolidation of 2-D porous unsaturated seabed under a composite breakwater[J]. Mechanika, 2012, 18(4):373-379.

Sassa S, Takayama T, Mizutani M, et al. Field observations of the build-up and dissipation of residual porewater pressures in seabed sands under the passage of stormwaves[J]. Journal of Coastal Research, 2006, 39(12):410-414.

Ishihara K. Liquefaction and flow failure during earthquakes[J]. Géotechnique, 1993, 43(3):351-451.

Wu J, Kammaerer A M, Riemer M F, et al. Laboratory study of liquefaction triggering criteria[C]//Proceedings of 13th World Conference on Earthquake Engineering. Vancouver, British Columbia, Canada. 2004.

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