Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Parametric Study with the Different Size of Meshes in Numerical Analysis Considering the Dynamic Soil-Pile Interactions

지반-말뚝 동적 상호 작용을 고려한 말뚝의 수치 모델링 : 메쉬 크기와 형상에 대한 매개 변수 연구

  • Na, Seon-Hong (Dept. of Civil and Environmental Engineering, Seoul National University) ;
  • Kim, Seong-Hwan (Dept. of Civil and Environmental Engineering, Seoul National University) ;
  • Kim, Myoung-Mo (Dept. of Civil and Environmental Engineering, Seoul National University)
  • 나선홍 (서울대학교 건설환경공학부) ;
  • 김성환 (서울대학교 건설환경공학부) ;
  • 김명모 (서울대학교 건설환경공학부)
  • Published : 2009.09.25
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Abstract

Numerical analysis is a powerful method in evaluating the soil-pile-structure interaction under the dynamic loading, and this approach has been applied to the practical area due to the development of computer technology. Finite Difference Method, one of the most popular numerical methods, is sensitive to the shape and the number of mesh. However, the trial and error approach is conducted to obtain the accurate results and the reasonable simulation time because of the lack of researches about mesh size and the number. In this study, FLAC 3D v3.1 program(FDM) is used to simulate the dynamic pile model tests, and the numerical results are compared with the 1G shaking table tests results. With the different size and shape of mesh, the responses of pile behavior and the simulation time are estimated, and the optimum mesh sizes in dynamic analysis of single pile is studied.

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