Dynamic Behavior of Underground Structures in Multi-Layered Media

Abstract:

This study performs dynamic analysis of underground structures on multi-layered half planes in frequency domain by using the coupled finite and boundary element method. The near field including underground structures is modeled with onventional finite elements, while the far field is modeled with boundary elements which satisfies radiation conditions. In evaluating the dynamic fundamental solutions, semi-analytical solutions due to line loads are employed. Therefore, the range of wavenumber integration can be reduced significantly. These solutions satisfy the reflection and transmission conditions of waves at each layer interface, so that the multi-region problem can be analyzed. Numerical examples are given to demonstrate the accuracy and efficiency of the proposed method.

• Periodical: Key Engineering Materials (Volumes 297-300)
• Pages: 78-83
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.297-300.78
• Online since: November 2005
• Authors: Sung Woo Park, Jong Woo Rhee, Weon Keun Song, Moon Kyum Kim
• Keywords: Coupled Finite and Boundary Element Method, Dynamic Fundamental Solution

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