Caisson Failure Induced by Liquefaction: Barcelona Harbour, Spain

Puzrin, Alexander M.; Alonso, Esteban; Pinyol, Núria M.

doi:10.1007/978-90-481-3531-8_5

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…In the initial stages of researching such topics, analytical solutions are often employed [5][6][7]. However, these analytical solutions assume that breakwaters exist as impermeable straight lines, neglecting the influence of their geometry and characteristics on wave propagation, as well as the effect of the breakwater's self-weight on the initial stress distribution of the seabed foundation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Dynamic Response and Liquefaction Phenomena in Sandy Seabed Foundation around a Semi-Circular Breakwater under Wave Loading

Liu,

Jia,

Cui

et al. 2023

JMSE

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Understanding the stability of the seabed foundation holds paramount significance in guaranteeing the safety and structural soundness of the breakwater alongside additional offshore structures. This study aimed to investigate the stability of a sandy seabed foundation around a semi-circular breakwater under wave loading in nearshore areas. A coupled numerical model of waves, a semi-circular breakwater, and the seabed was developed based on the OpenFOAM platform. The VARANS equations were used to govern the wave behavior. Meanwhile, the Biot’s partially dynamic model was employed to numerically simulate the seabed response considering both consolidation under self-weight and dynamic response under wave loading. The effects of various wave parameters, seabed properties, and the radius of the structure on the dynamic response of the seabed and the depth of liquefaction were investigated. The numerical results indicate that an increase in wave height, period, and permeability coefficient intensifies the dynamic response of the seabed soil. Furthermore, an increase in water depth weakened the soil’s dynamic response. There was a negative correlation between the radius of the semi-circular breakwater and the dynamic response. The influence of Poisson’s ratio on the dynamic response of the seabed was relatively small. Furthermore, a stronger dynamic pore pressure response was observed at the connection between the semi-circular breakwater and the rubble foundation.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Dynamic Response and Liquefaction Phenomena in Sandy Seabed Foundation around a Semi-Circular Breakwater under Wave Loading

Liu,

Jia,

Cui

et al. 2023

JMSE

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“…Soft silty soils are widespread in deltas, estuaries and coastal zones, and are prone to liquefaction under cyclic wave loading because of their high natural water content and weak permeability [1,2], which may result in serious damage to marine structures, such as the instability of gravity platforms [3], large horizontal displacements of immersed tunnels [4], tilting of caissons [5], shear failure of breakwater slopes [6], shear and tensile failures of bolts [7], and floating up of pipelines [8]. Such silty soils are also characterized by high anisotropy of strength properties, mainly manifested as stress path dependence.…”

Section: Introductionmentioning

confidence: 99%

Deformation Behavior of Saturated Marine Silt under Principal Stress Rotation as Induced by Wave Loading

et al. 2021

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An experimental study aimed at providing insights into the cyclic deformation behavior of saturated marine silt under principal rotation, as induced by wave loading, is presented. Using the GDS hollow cylinder apparatus, a series of undrained tests are performed and the specimens at identical initial states are subjected to combined axial–torsional cyclic loading that imposes different levels of stress rotation. The cumulative generalized shear strain γg is used to describe the deformation of the silt under complex stress paths. The test results show that the cumulative generalized shear strain is significantly dependent on the cyclic stress ratio (CSR) and cyclic loading amplitude ratio δ. The cumulative generalized shear strain increases with the increase in CSR and decreases with the increase in δ. The development trend of γg can be well predicted through the correct Monismith model in the non-liquefaction silt, with a low error that is generally less than 10%.

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“…For instance, in 1960, the waves induced the seabed soil near Fao Island in Shatt Al Arab Delta turning into a dense liquid, and caused the pipeline there oatation (Damgaard et al 2006). Puzrin et al, (A. M. Puzrin, Alonso, andPinyol 2010) also reported a disaster caused by typhooninduced liquefaction of the seabed and subsidence of caisson breakwaters at Barcelona Harbor, Spain in 2001. Therefore, investigation on wave-induced seabed liquefaction been considered to be a critical issue for the fundamental failure of coastal and ocean structures.Previous scholars have extensively studied the mechanisms of wave-induced seabed liquefaction.…”

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confidence: 99%

Experimental Investigation on Seabed Response Under Wave-Induced Motion of Marine Structure

Wu,

Ren,

Xiong

2024

Preprint

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Periodic wave loads acting on marine structures cause them to vibrate accordingly. The wave-induced vibration of marine structures can induce seabed liquefaction, and result in foundation instability. Therefore, seabed stability induced by wave-induced vibrations of marine structures should be one of the key issues to guide the design of marine structures to ensure their safety. In this study, the effect of wave-induced vibration of marine structure on seabed liquefaction was carefully investigated based on a flume experiment. The effects of grain size of sandy seabed sediments, self-weight of structures, and amplitude and period of external forces acting on the structures on the spatial distribution of super-hydrostatic pore water pressure in the seabed, and influences of them on the liquefaction characteristics of the seabed were also investigated through modeling experiments. The experimental results show the accumulation of super-static pore water pressure caused by wave-induced vibration of the structure is more obvious in the experiments with smaller grain size sediment; the peak value of the transient pore water pressure in the seabed increases with the increase of the self-weight of the structure, while the peak value of the residual pore pressure shows a tendency to increase firstly and then decrease with the increase of the structure's self-weight; the amplitude of the external force acting on the structure increases and the period decreases, which will lead to the accumulation of superstatic pore water pressure and liquefaction of the seabed. An increase in amplitude or decrease in the period of external force on the structure will cause the accumulation of superstatic pore water pressure and the deepening of liquefaction.

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Caisson Failure Induced by Liquefaction: Barcelona Harbour, Spain

Cited by 4 publications

References 14 publications

Numerical Analysis of Dynamic Response and Liquefaction Phenomena in Sandy Seabed Foundation around a Semi-Circular Breakwater under Wave Loading

Numerical Analysis of Dynamic Response and Liquefaction Phenomena in Sandy Seabed Foundation around a Semi-Circular Breakwater under Wave Loading

Deformation Behavior of Saturated Marine Silt under Principal Stress Rotation as Induced by Wave Loading

Experimental Investigation on Seabed Response Under Wave-Induced Motion of Marine Structure

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