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《Chinese Journal of Geophysics》 2006-01
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Scattering of plane waves by circular-arc alluvial valleys with saturated soil deposits and water

LI Wei_Hua, ZHAO Cheng_GangSchool of Civil Engineering and Architecture, Beijing Jiao_tong University, Beijing 100044, China  
We present an analytic solution of two_dimensional scattering and diffraction of plane P and SV waves by circular_arc alluvial valleys with saturated soil deposits and water. We use the Fourier_Bessel series expansion technique with the deposits simulated by the Biot dynamic theory for saturated porous media, the half space assumed to be elastic single_phase media, and the water in the valleys simulated by perfect fluid. Numerical results are given to show the displacement amplitudes on the valley floor. Our analysis indicates that the surface displacement amplitudes of the valley floor changes with the positions of the observation points apparently.
【Fund】: 国家自然科学基金项目(50478062)资助.
【CateGory Index】: P315.31
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