... of turbulence. By applying the general flat-bed sediment transport model to the local scour around a circular pile, a physics-based ordinary differential equation (ODE) for predicting the scour depth development is derived and the corresponding numerical solution is further obtained. The equation contains all...

... three-wing monopile scour depth displacement Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-81-4; ISSN 1098-6189...

... scour around a vibrating pipeline in steady current. It was found that the maximum scour depth occurred slightly behind the pipeline rather than directly below it. Zang et al. (2021) studied vortex induced vibration of a pipeline on a silty seabed and its effects on local scour under steady current...

... caisson excavation depth flow rate caisson foundation local scour depth upstream oil & gas water depth scour pit open caisson maximum scour depth scour depth topography water flow foundation pit scour topography flow velocity sediment foundation caisson shape streamline...

... ABSTRACT Taking the long-span three-pylon cable-stayed bridge with the main span of 720m in the sea-crossing project as the object, the influence of the different scour depths on the seismic responses of the structure was analyzed. The research shows that with the increase of the scour depth...

... Abstract A new simplified and practical methodology for the calculation of the equilibrium scour morphology in the clear-water regime is proposed using the bed shear stress amplification as a surrogate for the scour depth. With gradually decreasing scour depth increments, the morphology...

... around the submarine pipeline in extreme sea conditions, the numerical study on the local scour under solitary wave is conducted in this paper. The influence of prominent factors, such as solitary wave height, pipeline diameter and sediment property, on the scour depth has been examined and discussed...

... including the jack-up platform and soil was constructed to accurately reflect the interaction between the pile leg and the soil. On the basis of investigating the relationship between the stress field and the scour depth of Jack-up's legs and boots, the scouring identification model was built by applying...

... piers strengthened by FRP under the soil-pile interaction are carried out. Parametric studies are performed to study the effect of laminate layup of FRP, strengthening area of FRP, mono pile, group piles and scour depth of piles on the ultimate strength and failure behavior of bridge pier system...

... ABSTRACT Scouring, due to the interaction of fluid, pipeline and material of soil, is a complex phenomenon, numerous effective parameters are involved on the scouring phenomenon below the pipelines. In order to predict scour depth accurately, investigators have tried to predict scour depth...

... developed. For instance, Roulund et al. (2005) studied, both numerically and experimentally, the flow and local scour around a vertical pile exposed to a steady current and found that the scour depth was highly affected by the local flow pattern around the pile, such as horseshoe vortex and lee-wake vortex...

... been done on scour phenomenon with monopile foundations. It led to various empirical formulas and methods to predict scouring depth and extension (Matutano et al., 2013). On the other hand, the computation can be employed as an alternative tool to study the scour process around structure (Pang et al...

... simulation analyses including the finite element model and the material properties are described. Finally, the performance of a realistic highway bridge in Taiwan under dynamic loading is studied and conclusions for this investigation are given. reaction force equation element model scour depth...

... phenomenon single pile finite element method soil solid element pile foundation frequency engineering natural frequency element method bridge interaction reaction force scour depth loading Finite Element Frequency Analysis of Bridge Pier under the Soil-Pile Interaction H.-T. Hu, P.-J. Chen...

.... The numerical results indicated that the maximum scour depths under the vibrating pipelines are much larger than those under the fixed pipelines. Strong dynamic interaction between the two pipelines is observed. The shadowing effect of the upstream pipeline on the downstream pipeline is significant. The effects...

..., and superstructure were established. The four finite element models corresponding to four scour conditions were subjected to an acceleration time history, so as to assess the seismic response of the wind turbine structure and foundation soil for various scour depths. It is found that with the increase of scour depth...

.... It was discovered that the scour depth has such a significant negative impact on dynamic responses of offshore wind turbine (OWT) that engineers must pay enough attention to it (Yan, Gu, Lu and Lin, 2011). According to Xue, Wang, and Yang (2012), scour may increase deformation and decrease bearing capacity of OWTF...

... could occur due to tsunami under the condition that amplitude of changes in sea level was large and the drawdown rapidly occurred. liquefaction scour hole maximum scour depth tsunami initial stage scour depth soil bed hydraulic gradient effective stress experiment downstream part...

... Abstract The paper presents an experimental study of local scour around truncated vertical piles subject to oscillatory flow. The experiments were conducted with six height-to-diameter ratios ( h/D =0.25~3.5) and three KC numbers (33, 52 and 80). The development of scour depth around...

.... With the 100-year or 10-year return period wave and current parameters, numerical cases for two values of Keulegan-Carpenter number (KC) were set up. The evolution of scour depth is given. D50 of sand is 0.16mm from the sand sample in the field. Numerical Study of Local Scour of Pipeline under Combined...