Abstract
Wave reflection and refraction in layered media is a topic closely related to seismology, acoustics, geophysics and earthquake engineering. Analytical solutions for wave reflection and refraction coefficients in multi-layered media subjected to P wave incidence from the elastic half-space are derived in terms of displacement potentials. The system is composed of ideal fluid, porous medium, and underlying elastic solid. By numerical examples, the effects of porous medium and the incident wave angle on the dynamic pressures of ideal fluid are analyzed. The results show that the existence of the porous medium, especially in the partially saturated case, may significantly affect the dynamic pressures of the overlying fluid.
Similar content being viewed by others
References
Biot MA (1956), “Theory of Propagation of Elastic Waves in a Fluid-saturated Porous Solid,”The Journal of Acoustical Society of America,28(1): 168–191.
Biot MA and Willis DG (1957), “The Elastic Coefficients of the Theory of Consolidation,”Journal of Applied Mechanics,24(4):594–601.
Bogy DB and Gracewski SM (1983), “Reflection Coefficient for Plane Waves in a Fluid Incident on a Layered Elastic Half-space,”Journal of Applied Mechanics,50:405–413.
Bougacha S and Tassoulas JL (1991a), “Seismic Response of Gravity Dams, I: Modeling of Sediments,”Journal of Engineering Mechanics, ASCE,117(8): 1826–1837.
Bougacha S and Tassoulas JL (1991b), “Seismic Response of Gravity Dams, II: Effects of Sediments,”Journal of Engineering Mechanics, ASCE,117(8): 1839–1850.
Brekhovskikh LM (1980),Waves in layered media, Second Edition, Academic Press: New York.
Cheng AHD (1986), “Effects of Sediment on Earthquakeinduced Reservoir Hydrodynamic Response,”Journal of Engineering Mechanics, ASCE,112(7):654–663.
Deresiewicz H and Rice JT (1962), “The Effect of Boundary on Wave Propagation in a Liquid-filled Porous Solid: III Reflection of Plane Waves at a Free Plane Boundary (General case),”Bulletin of the Seismological Society of America,52(3):595–625.
Dominguez J, Gallego R and Japon BR (1997), “Effects of Porous Sediments on Seismic Response of Concrete Gravity Dams,”Journal of Engineering Mechanics, ASCE,123(4):302–311.
Fenves G and Chopra AK (1985), “Effects of Reservoir Bottom Absorption and Dam-water-foundation Rock Interaction on Frequency Response Functions for Concrete Gravity Dams,”Earthquake Engineering and Structural Dynamics,13(1): 13–31.
Mei CC and Foda MA (1981), “Wave Induced Response in a Fluid-filled Poroelastic Solid with a Free Surface - a Boundary Layer Theory,”Geophysical Journal of the Royal Astronomical Society, London, England,66: 597–631.
Munjal ML (1993), “Response of a Multi-layered Infinite Plate to an Oblique Plane Wave by Means of Transfer Matrices,”Journal of Sound and Vibration,162(2):333–343.
Verruijt A (1969), “Elastic Storage of Aquifers,”Flow through porous media, Roger J. M. De Wiest ed., Academic Press: New York and London.
Yang J (1999), “Importance of Flow Condition on Seismic Waves at a Saturated Porous Solid Boundary,”Journal of Sound and Vibration,221(3):391–413.
Yang J (2001), “Saturation Effects on Horizontal and Vertical Motions in Layered Soil-bedrock System Due to Inclined SV Waves,”Soil Dynamics and Earthquake Engineering,21:527–536.
Zhang CH, Yan CD and Wang GL (2001), “Numerical Simulation of Reservoir Sediment and Effects on Hydro-dynamic Response cf Arch Dams,”Earthquake Engineering and Structural Dynamics,30:1817–1837.
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by: National Natural Science Foundation of China Under Grant No. 50309005; National Key Basic Research and Development Program Under Grant No.2002CB412709
Rights and permissions
About this article
Cite this article
Jinting, W., Chuhan, Z. & Feng, J. Analytical solutions for dynamic pressures of coupling fluid-solid-porous medium due to P wave incidence. Earthq. Eng. Eng. Vib. 3, 263–271 (2004). https://doi.org/10.1007/BF02858240
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02858240