Dynamic Green's functions for an anisotropic poroelastic half‐space
Source abstract
Abstract
Summary The dynamic responses of an anisotropic poroelastic half‐space under an internal point load and fluid source are investigated in the frequency domain in this paper. By virtue of Fourier transform and Stroh formalism, the three‐dimensional (3D) general solutions of the anisotropic Biot's coupling dynamics equations are derived in the frequency domain. Considering the two surface conditions, permeable and impermeable, the analytical solutions for displacement fields and pore pressure in half‐space under a point source (point load or a fluid source) are obtained. When the material properties are isotropic, the numerical results of the poroelastic half‐space are in excellent agreement with the existing analytical solutions. For anisotropic half‐space cases, numerical results show the strong dependence of the dynamic Green's functions on the material properties.
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Research context
OpenAlex topics: Geotechnical Engineering and Underground Structures · Seismic Imaging and Inversion Techniques · Seismic Waves and Analysis
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Affiliations
Department of Mechanics, School of Aerospace Engineering Beijing Institute of Technology Beijing P. R. China
School of Petroleum Engineering and Environmental Engineering Yan'an University Yan'an P. R. China
School of Chemistry and Chemical Engineering Yan'an University Yan'an P. R. China
Funding
National Natural Science Foundation of China
References (43)
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