A coupled SBFEM (Scaled Boundary Finite Element Method)-IBIEM (Indirect Boundary Integral Equation Method) method is developed to investigate the wave scattering by a hill with fissures under SV waves, and some influence factors are discussed in detail. The results show that the larger the fissure, the more obvious the amplification effect, but the peak surface displacement of the hill is not necessarily larger. The fissure location also has a remarkable influence on the surface displacements of the hill, and the peak displacement even exceeds 4.0. The peak displacements always appear near the fissures, the smaller fissures have an obvious influence on the high-frequency components of seismic waves and should not be neglected in the estimation of the amplification effect. Therefore, a detailed geological survey of the hill fissures is necessary and crucial for the seismic safety of hill engineering structures such as buildings, long-span bridges and tunnels.

中文翻译：

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SV波作用下裂隙山波散射求解的SBFEM-IBIEM耦合方法


提出了SBFEM（尺度边界有限元法）-IBIEM（间接边界积分方程法）耦合方法来研究SV波下裂隙山体的波散射，并详细讨论了一些影响因素。结果表明，裂隙越大，放大效应越明显，但山体峰值表面位移不一定越大。裂隙位置对山体地表位移也有显着影响，峰值位移甚至超过4.0。峰值位移总是出现在裂隙附近，较小的裂隙对地震波的高频分量影响明显，在放大效应估算中不应忽视。因此，对山体裂隙进行详细的地质调查对于建筑物、大跨桥梁、隧道等山体工程结构的地震安全是必要且至关重要的。