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The wave induced behavior of soil and water in seabeds of finite thickness is considered analytically based on the Biot theory. The analytical results are compared with the results from a laboratory experimentation. As a practical numerical example, the stress analysis is done for a coarse sand bed and a fine sand bed which are subjected to the North Sea design wave conditions. The results indicate that the top part of the sand beds, as much as 7.5 m thick, can be unstabilized from the design waves. The theoretical development and the numerical results from this study may be important with regard to the problems of the flotation of buried pipelines, the burial of bubble mounds and the foundation failures. The results may also be useful when the sand transport by tsunamis and storm waves and the associated wave attenuation rates are considered.
The wave induced behavior of soil and water in seabeds of finite thickness is considered analytically based on the Biot theory. The analytical results are compared with the results from a laboratory experimentation. As a practical numerical example, the stress analysis is done for a coarse sand bed and a fine sand bed which are subjected to the North Sea design wave conditions. The results indicate that the top part of the sand beds, as much as 7.5 m thick, can be unstabilized from the design waves. The theoretical development and the numerical results from this study may be important with regard to the problems of the flotation of buried pipelines, the burial of bubble mounds and the foundation failures. The results may also be useful when the sand transport by tsunamis and storm waves and the associated wave attenuation rates are considered.
Wave Induced Instability in Seabeds
T. Yamamoto (author)
1977
16 pages
Report
No indication
English
Civil Engineering , Soil & Rock Mechanics , Ocean Sciences & Technology , Soil mechanics , Stress analysis , Foundations , Coastal engineering , Mathematical models , Harmonic functions , Ocean waves , Sediment transport , Pore pressure , Strains , Boundary value problems , Failure , Reprints , Sea Grant program
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