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Tytuł artykułu

Wave-induced stresses and pore pressures near a mudline

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Conventional methods for the determination of water-wave induced stresses in seabeds composed of granular soils are based on Biot-type models, in which the soil skeleton is treated as an elastic medium. Such methods predict effective stresses in the soil that are unacceptable from the physical point of view, as they permit tensile stresses to occur near the upper surface of the seabed. Therefore, in this paper the granular soil is assumed to behave as an elastic-ideally plastic material, with the Coulomb-Mohr yield criterion adopted to bound admissible stress states in the seabed. The governing equations are solved numerically by a finite difference method. The results of simulations, carried out for the case of time-harmonic water waves, illustrate the depth distributions of the excess pore pressures and the effective stresses in the seabed, and show the shapes of zones of soil in the plastic state. In particular, the effects on the seabed behaviour of such parameters as the degree of pore water saturation, the soil permeability, and the earth pressure coefficient, are illustrated.
Czasopismo
Rocznik
Strony
539--555
Opis fizyczny
biblogr. 15 poz., wykr.
Twórcy
autor
  • Institute of Hydroengineering, Polish Academy of Sciences, (IBW PAN), Kościerska 7, PL-80-328 Gdańsk, Poland, rstar@ibwpan.gda.pl
Bibliografia
  • Biot M.A., 1941, General theory of three-dimensional consolidation, J. Appl. Phys., 12 (2), 155-164.
  • Dunn S. L., Vun P. L., Chan A.H.C., Damgaard J. S., 2006, Numerical modelling of wave-induced liquefaction around pipelines, J.Waterw. Port C.-ASCE, 132 (4), 276-288.
  • Hsu J.R.C., Jeng D. S., 1994, Wave-induced soil response in an unsaturated anisotropic seabed of finite thickness, Int. J. Numer. Anal. Met., 18 (11), 785-807.
  • Madsen O. S., 1978, Wave-induced pore pressure and effective stresses in a porous bed, Géotechnique, 28 (4), 377-393.
  • Massel S.R., Przyborska A., Przyborski M., 2004, Attenuation of wave-induced groundwater pressure in shallow water. Part 1, Oceanologia, 46 (3), 383-404.
  • Massel S.R., Przyborska A., Przyborski M., 2005, Attenuation of wave-induced groundwater pressure in shallow water. Part 2. Theory, Oceanologia, 47 (3), 291-323.
  • Mei C.C., Foda M.A., 1981, Wave-induced responses in a fluid-filled poro-elastic solid with a free surface - a boundary layer theory, Geophys. J. Roy. Astr. S., 66 (3), 597-631.
  • Sawicki A., Mierczyński J., 2006, Developments in modeling liquefaction of granular soils, caused by cyclic loads, Appl. Mech. Rev., 59 (2), 91-106.
  • Sawicki A., Mierczyński J., 2005, Wave-induced stresses and liquefaction in seabed according to the Biot-type approach, Arch. Hydro-Eng. Environ. Mech., 52 (2), 131-145.
  • Sawicki A., Staroszczyk R., 2008, Stresses in a seabed due to water wave action, [in:] Geotechnics in maritime engineering, Proc. 11th Baltic Sea Geotechnical Conf., Gdańsk, 743-748.
  • Sumer B.M., Fredsoe J., 2002, The mechanics of scour in the marine environment, Adv. Ser. Ocean Eng. 17, World Sci., New Jersey, 552 pp.
  • Verruijt A., 1969, Elastic storage of aquifers, [in:] Flow through porous media, R. J.M. De Wiest (ed.), Acad. Press, New York, 331-376.
  • Yamamoto T., Koning H. L., Sellmeijer H., Van Hijum E., 1978, On the response of a poro-elastic bed to water waves, J. Fluid Mech., 87 (1), 193-206.
  • Zienkiewicz O.C., Taylor R. L., 2000a, The finite element method, Vol. 1, The basis, 5th edn., Butterworth-Heinemann, Oxford, 736 pp.
  • Zienkiewicz O.C., Taylor R. L., 2000b, The finite element method, Vol. 2, Solid mechanics, 5th edn., Butterworth-Heinemann, Oxford, 480 pp.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS5-0015-0003
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