QI Hui, DING Xiao-hao, ZHANG Yang. Study of scattering of SH-waves by a buried elliptic inclusion near a vertical interface and ground surface vibration[J]. 2016, 37(8): 2151-2158.
QI Hui, DING Xiao-hao, ZHANG Yang. Study of scattering of SH-waves by a buried elliptic inclusion near a vertical interface and ground surface vibration[J]. 2016, 37(8): 2151-2158.DOI: 10.16285/j.rsm.2016.08.004.
The methods of complex variable function and Green’s function are applied to derive analytical solutions to the scattering of SH-waves induced by a buried elliptic inclusion near a vertical interface in the elastic half space. Firstly
the analytical model to be solved is divided into two rectangular domains along the vertical interface. The conformal mapping method was used to map the outer boundary of the elliptic inclusion into a unit circle in the domain I. Moreover
in these two domains
the method of images is applied to construct scattering wave fields and an applicable Green’s function satisfying boundary conditions of rectangular domains. Secondly
with the aid of interface ‘conjunction’ technique
infinite algebraic equations are established by adding an additional system of forces at the interface and then solved by truncation
which meets the displacement and stress continuity conditions at the interface. Finally
some specific examples are given to estimate surface displacement amplitudes. Numerical results show that incident wave
incident angle
the position of inclusion
material properties and vertical interface to some extent affect the distribution of ground surface displacement.