Effects of Surface Waves and Marine Soil Parameters on Seabed Stability
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摘要: 基于Yamamoto的多孔弹性介质模型,研究了波生底床的稳定性.通过给出的有限深底床下土响应分析解,针对三种土质底床,讨论了主要波参数和土参数对这些底床稳定性的影响.与其他土模型计算结果进行了比较,分析了海洋土内部Coulomb摩擦因素的影响.Abstract: Based on the Yamamoto's soil model by considering the Coulomb friction effects,the wave-induced seabed instability has been investigated.An analytical solution is derived for soil response of a finite depth seabed under surface water wave.The effects of wave parameters and soil characteristics on the seabed instability are addressed for three types of soil.Finally,the roles of Coulomb friction stability are then analyzed as well.
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Key words:
- seabed instability /
- shear failure /
- liquefaction
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[1] Smith A W,Gordon A D.Large breakwater toe failures[J].Journal of Water way Port Coastal andOcean Engineering,ASCE,1983,109(2):253-255. [2] Silvester R,Hsu J R C.Sines revisited[J].Journal of Water way Port Coastal and Ocean Engineering,ASCE,1989,115(3):327-344. [3] Putnam J A.Loss of wave energy due to percolation in a permeable sea bottom[J].Trans Am Geophys Un,1949,30:662-666. [4] Sleath J F A.Wave induced pressures in beds of sand[J].J Hydraul Div ASCE,1970,96(HY2):367-378. [5] Liu PL-F.Damping of waves over porous bed[J].J Hydraul Div ASCE,1973,99(HY12):2263-2271. [6] Massel S R.Gravity waves propagated over permeable bottom[J].J Watways Harb Cstl Engng ASCE,1976,102(WW2):111-121. [7] Moshagen H,Torum A.Wave induced pressures in permeable seabed[J].J Watways Harb Cstl Engng ASCE,1975,101(WW1):49-58. [8] Prevost J H,Eide O,Anderson K H.Discussion of wave induced pressure in permeable seabed[J].J Watways Ha b Cstl Engng ASCE,1975,101(WW4):464-465. [9] Yamamoto T,Koning H L,Sellmeijer H,et al.On the response of a poroelastic bed to water waves[J].Journal Fluid Mechanics,1978,87(1):193-206. [10] Madsen O S.Wave-induced pore pressures and effective stresses[J].Geotechnique,1978,28(4):377-393. [11] Oksua S.Wave-induced stresses in unsaturated submarine sediments[J].Geotechnique,1985,35(4):517-532. [12] Hus J R C,Jeng D S.Wave-induced soil response in an unsaturated anisotropic seabed of finite thickness[J].International Journal for Numerical and An alytical Methods in Geomechanics,1994,18:785-807. [13] Seymour B R,Jeng D S,Hus J R C.Transient soil response in porous seabed with a variable perme-ability[J].Ocean Engineering,1996,23(1):27-46. [14] Lin Y S,Jeng D S.Response of poro-elastic seabed to a 3-D wave system:a finite element analysis[J].Coastal Engineering in Japan,1996,39(2):165-183. [15] Lin Y S,Jeng D S.The effects of variable permeability on the wave-induced seabed response[J].Ocean Egineering,1997,24(7):623-643. [16] Jeng D S.Wave-induced seabed instability in front of a breakwater[J].Ocean Engng,1997,24(10):887-917. [17] Stokoe K H.Dynamic properties of offshore silty samples[A].In:Program Departmen,Offshore Technology Conference Ed.Offshore Technology Conference Proceedings[C].Richardson,T X75083-3868,USA,1980,2:289-302. [18] Yamamoto T.On the response of a Coulomb-damped poroelastic bed to water waves[J].Marine Geotechn ology,1983,5(2):93)127. [19] 林缅.波浪作用下粉土特性分析,中国科学(E 辑),2000,30(6):1-12. [20] Li J C,Lin M.On the interaction of water waves and seabed by porous medium model[J].Acta Mecha nics Sinica,1995,11(2):17)27. [21] Tsai C P.Wave-induced liquefaction potential in a porous seabed in front of a breakwater[J].Ocean Engineering,1995,22(1):1-18. [22] Zen K,Yamazaki.Mechanism of wave-induced liquefaction and densification in seabed foundations[J].Soil and Foundations,1990,30:90-104. [23] Yamamoto T.Wave-induced pore pressures and effective stresses in inhomogeneous seabed foundations[J].Ocean Engng,1981,8:1-16.
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