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ISSN Druckformat: 1091-028X
ISSN Online: 1934-0508
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DYNAMIC RESPONSE OF COUPLED THERMO-HYDRO-ELASTODYNAMIC PROBLEM FOR SATURATED FOUNDATION UNDER G-L GENERALIZED THERMOELASTICITY
ABSTRAKT
Analytical solutions are developed for a two-dimensional coupled thermo-hydro-elastodynamic problem in an isotropic, uniform, fully saturated, poroelastic half-space foundation subjected to harmonic loads. The Green-Lindsay (G-L) theory of thermoelasticity with two relaxation time parameters has been used to investigate this problem. Normal mode analysis (NMA) has been used to obtain general solutions for nondimensional vertical displacement, excess pore water pressure, vertical stress, and temperature. NMA is a method to deduce analytic solutions by means of weighted residuals. This method can solve partial differential equations more quickly than others, so as to achieve the purpose of fast decoupling. These results are then illustrated graphically. This paper introduces a numerical example, uses the Maple program to illustrate the theoretical results, and discusses the differences between the coupled thermo-hydro-elastodynamic model (THED) and the thermoelastic dynamic model (TED). From this investigation, we have discovered that the pore water and pore water pressure have a significant effect on foundation stability.
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