NUMERICAL MODELLING OF WAVE-INDUCED SOIL RESPONSE AROUND BREAKWATER HEADS

2011 ◽  
pp. 789-796
Author(s):  
D.-S. JENG ◽  
Y. ZHANG ◽  
J.-S. ZHANG ◽  
C. ZHANG ◽  
P. L.-F. LIU
Keyword(s):  
Numerical Modelling ◽  
Soil Response ◽  
Wave Induced

scholarly journals Simulating Shallow Soil Response Using Wave Propagation Numerical Modelling in the Western Plain of Taiwan

2016 ◽  
Vol 27 (3) ◽  
pp. 359 ◽  
Author(s):  
Chun-Te Chen ◽  
Chun-Hsiang Kuo ◽  
Kuo-Liang Wen ◽  
Che-Min Lin ◽  
Jyun-Yan Huang
Keyword(s):  
Wave Propagation ◽  
Numerical Modelling ◽  
Soil Response ◽  
Shallow Soil

scholarly journals Numerical Modelling of Realistic Ice Floes in Ocean Waves

1983 ◽  
Vol 4 ◽  
pp. 277-282 ◽  
Author(s):  
Vernon A. Squire
Keyword(s):  
Numerical Model ◽  
Numerical Modelling ◽  
Rigid Body ◽  
Ocean Waves ◽  
Rigid Body Motions ◽  
Ice Floes ◽  
Wave Induced

Results from a numerical model for the computation of ice-floe motions in ocean waves are presented and discussed for floes of various sectional shapes. It is shown that the beam-to-draft ratio is a crucial factor in determining the behaviour of each floe, and that ridges and keels can substantially affect the roll and sway characteristics, particularly for thick floes. Undercuts beneath floes appear to have little effect, but a protruding sill can lead to decreased motion at certain frequencies and a reduced capability for making waves. As the underwater character of an ice floe cannot easily be measured, it is necessary to infer draft from freeboard estimates using the method proposed by Ackley and others (1976). Although most of this paper is concerned with rigid body motions, a brief account is included of a modification to the model which allows each floe to bend on the passing wave. By this means, wave-induced flexure is discussed for floes of non-simple underwater shape.

scholarly journals DYNAMIC RESIDUAL SEABED RESPONSE AROUND A MOVABLE PILE FOUNDATION

2018 ◽  
pp. 20
Author(s):  
Titi Sui ◽  
Chi Zhang ◽  
Jinhai Zheng ◽  
Dong-Sheng Jeng
Keyword(s):  
Pile Foundation ◽  
Wave Model ◽  
Residual Soil ◽  
Governing Equations ◽  
Soil Response ◽  
Oscillatory Mechanism ◽  
Soil Skeleton ◽  
Inertial Terms ◽  
Residual Response ◽  
Wave Induced

Wave-induced seabed soil response and its resultant liquefaction is common observed in a silt seabed with relative poor drainage condition, which poses a great threaten to the foundation safety of marine structures. Regarding the governing equations, three different approaches namely the Fully-dynamic (FD), Partialdynamic (PD) and Quasi-static (QS) model, have been used in the previous studies. Among these, both PD and FD approaches consider the effect of the inertial terms of soil skeleton/fluid. It has been reported in the literature that effects of the inertial terms on the seabed response could not be neglected, especially for the seabed around a movable structure (Ulker et al., 2010). However, these studies only focused on the oscillatory mechanism which are probably seen in a sandy seabed with high permeability. Recently, Zhao et al. (2017) investigated the residual soil response around a pile foundation by integrating a RANS wave model and a QS seabed model. In their study, the inertial terms of soil skeleton and pore water were neglected. To the authors’ best knowledge, up to now, effects of the inertial terms on the residual response of a silt seabed have not been investigated.

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