Wave-induced seabed slide could happen even at very gently sloping silty seabed. Based on the wave-seabed interaction, the safety coefficient calculation model of wave-induced gentle seabed slides in the seabed instability was carried out using limit equilibrium method, Bishop Method, in this paper. The calculated results shows that the effective internal cohesion c′ and the effective internal friction angle φ′ affect the location of slip surface and the magnitude of the safety coefficient significantly. The safety coefficient rises linearly with the increases of c′ and φ′ at a fixed depth. The results fit reasonable well with the slide calculation results from a wave flume experiment in laboratory. Additionally, it was concluded that the silty seabed tended to slide under wave actions at the depth less than 5 meters in the Yellow River Subaqueous Delta.
- Ocean, Offshore and Arctic Engineering Division
Calculation of Wave-Induced Shallow Stratum Seabed Slides in the Subaqueous Yellow River Delta
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Xu, G, Wang, X, Wei, C, Fu, Z, & Zhao, Q. "Calculation of Wave-Induced Shallow Stratum Seabed Slides in the Subaqueous Yellow River Delta." Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7: Offshore Geotechnics; Petroleum Technology. Honolulu, Hawaii, USA. May 31–June 5, 2009. pp. 73-81. ASME. https://doi.org/10.1115/OMAE2009-79069
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