Laboratory Study for Influence of Clay Content (CC) on Wave-Induced Liquefaction in Marine Sediments

2015 ◽  
Vol 34 (3) ◽  
pp. 280-292 ◽  
Author(s):  
B. Liu ◽  
D.-S. Jeng
Keyword(s):  
Marine Sediments ◽  
Laboratory Study ◽  
Clay Content ◽  
Wave Induced

scholarly journals Laboratory study of wave-induced flexural motion of ice floes

2021 ◽  
Vol 182 ◽  
pp. 103208
Author(s):  
Hongtao Li ◽  
Ersegun Deniz Gedikli ◽  
Raed Lubbad
Keyword(s):  
Laboratory Study ◽  
Ice Floes ◽  
Wave Induced

Two-Dimensional Model for Wave-Induced Pore Pressure Accumulation in Marine Sediments

2013 ◽  
Author(s):  
Hongyi Zhao ◽  
Dong-Sheng Jeng ◽  
Huijie Zhang ◽  
Jisheng Zhang
Keyword(s):  
Pore Pressure ◽  
Marine Sediments ◽  
Wave Motion ◽  
Present Model ◽  
Two Dimensional ◽  
New Model ◽  
One Dimensional ◽  
Wave Cycle ◽  
Previous Solution ◽  
Wave Induced

In this paper, a two-dimensional (2D) porous model is established to investigate the predication of the wave-induced pore pressure accumulations in marine sediments. In the new model, the VARANS equation is used as the governing equation for the wave motion, while the Biot’s consolidation theory is used for porous seabed. The present model is verified with the previous experimental data [1] and provides a better prediction of pore pressure accumulation than the previous solution [2]. With the new model, a 2D liquefied zone is formed at the beginning of the process, and then gradually move down. After a certain wave cycle (for example, 30 wave cycles in the numerical example), the liquefaction zone will become one-dimensional (1D) and continuously move down and eventually approaches to a constant. Numerical results also conclude the maximum liquefaction depth increases as wave height increases and in shallow water.

Microbial Activity in Marine Sediments Exposed to Hexadecane: A Laboratory Study

2017 ◽  
Vol 45 (12) ◽  
pp. 1700531
Author(s):  
Abril M. Gamboa-Muñoz ◽  
N. Ulises García-Cruz ◽  
Alejandra Ramos-Castillo ◽  
Gerardo Gold-Bouchot ◽  
M. Leopoldina Aguirre-Macedo
Keyword(s):  
Microbial Activity ◽  
Marine Sediments ◽  
Laboratory Study

Laboratory study on wave-induced setup and wave-driven current in a 2DH reef-lagoon-channel system

2020 ◽  
Vol 162 ◽  
pp. 103772 ◽  
Author(s):  
Jinhai Zheng ◽  
Yu Yao ◽  
Songgui Chen ◽  
Shubin Chen ◽  
Qiming Zhang
Keyword(s):  
Laboratory Study ◽  
Channel System ◽  
Reef Lagoon ◽  
Wave Induced

Poro-Elasto-Plastic Model for the Wave-Induced Liquefaction1

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
C. C. Liao ◽  
H. Zhao ◽  
D.-S. Jeng
Keyword(s):  
Pore Pressure ◽  
Marine Sediments ◽  
Plastic Model ◽  
Whole Process ◽  
Centrifuge Tests ◽  
Pore Pressures ◽  
2D Pattern ◽  
Plastic Components ◽  
Excess Pore Pressures ◽  
Wave Induced

In this paper, we presented an integrated numerical model for the wave-induced pore pressures in marine sediments. Two mechanisms of the wave-induced pore pressures were considered. Both elastic components (for oscillatory) and the plastic components (for residual) were integrated to predict the wave-induced excess pore pressures and liquefaction in marine sediments. The proposed two-dimensional (2D) poro-elasto-plastic model can simulate the phenomenon of the pore pressure buildup and dissipation process in a sandy seabed. The proposed model overall agreed well with the previous wave experiments and geo-centrifuge tests. Based on the parametric study, first, we examined the effects of soil and wave characteristics on the pore pressure accumulations and residual liquefaction. Then, a set of analysis on liquefaction potential was presented to show the development of liquefaction zone. Numerical example shows that the pattern of progressive waves-induced liquefaction gradually changes from 2D to one-dimensional (1D), while the standing wave-induced liquefaction stays in a 2D pattern in the whole process.

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