IMECH-IR  > 流固耦合系统力学重点实验室
Responses of sandy seabed under combined waves and current,Turbulent boundary layer and pore-water pressure
Qi WG(漆文刚); Gao FP(高福平)
2014-01
Conference NamePhysical Modelling in Geotechnics - Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014, ICPMG 2014
Conference Date2014-1
Conference PlacePerth
AbstractNumerous offshore structures have been constructed in severe ocean environments where waves are usually coexisting with current. Previous studies on the seabed response mainly focused on either wave induced pore-pressure in the soil or the particle-transport of surficial sediments, etc. In this study, the sandy seabed responses in combined waves and current were physically modelled with a specially-designed water flume. The flow velocities in the boundary layer and the pore-water pressure in the sand-bed were simultaneously measured with an Acoustic Doppler Current Profiler (ADCP) and miniature Pore Pressure Transducers (PPTs) respectively. In the physical modelling of wave-current coexistence, both the following-current and opposing-current were superimposed on the travelling waves respectively. Experimental results indicate that the pore-pressure amplitudes are enlarged for the following-current case and reduced for the opposing-current case. This coupling effect is more obvious for the waves with shorter periods. The wave-induced seepage has slight effect on velocity profiles in the boundary layer for the examined hydrodynamic loads and the medium sands. © 2010 Taylor & Francis Group, London.
DepartmentLMFS流固土耦合力学(LHO)
ISBN9781138022218
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49465
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Qi WG,Gao FP. Responses of sandy seabed under combined waves and current,Turbulent boundary layer and pore-water pressure[C],2014.
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