2.5D scattering of incident plane SV waves by a canyon in layered half-space |
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| Authors: | Ba Zhenning Liang Jianwen |
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| Institution: | 1. Department of Civil Engineering, Tianjin University, Tianjin 300072, China ;Key Laboratory of Coast Civil Structure Safety Tianjin University, Ministry of Education
2. Department of Civil Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | This paper presents a 2.5D scattering of incident plane SV waves by a canyon in a layered half-space by using the indirect
boundary element method (IBEM). A free field response analysis is performed to provide the displacements and stresses on the
boundary of the canyon where fictitious uniform moving loads are applied to calculate the Green’s functions for the displacements
and stresses. The amplitudes of the loads are determined by the boundary conditions. The free field displacements are added
to the fictitious uniform moving loads induced displacements and the total response is obtained. Numerical calculations are
performed for a canyon with homogenous and in one layer over bedrock. The effects of the thickness and stiffness of the layer
on the amplification are studied and discussed. |
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| Keywords: | layered half-space canyon plane SV wave amplification scattering surface layer indirect boundary element method |
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