VERIFICATION OF SEEPAGE FLOW CALCULATION BASED ON FLUID-GROUND WEAK COUPLING ANALYSIS MODEL

  • Riku Okajima
  • Yuki Ohki
  • Shinji Taenaka
  • Shunsuke Moriyasu
  • Takeji Deji
  • Hideki Ueda
  • Katsumi Seki
  • Taro Arikawa

Abstract

In order to evaluate destruction of coastal structure caused by tsunami, it is essential to establish coupling method of fluid and ground. Arikawa et. Al.(2009) developed the model using weak coupling method of fluid analysis and ground analysis (named as CADMAS-STR). It is performed by mutual communication between pressure on fluid side and displacement on structure side. Based on boundary pressure from the fluid side, the ground side calculates seepage flow analysis using Biot's equation. On the other hand, the fluid side converts the ground region to porosity and calculates the resistance force to calculate seepage on the fluid side. In this study, based on Yoshioka's research, we applied Dupuit-Forchheimer's rule in CADMAS-STR's fluid resistance calculation, and verify its validity by comparing it with physical experiment. Furthermore, we compared pore water pressure

References

Arikawa.T et. al. (2009): Development of Numerical Wave Tank Coupled with Structure Analysis Based on FEM

Yoshioka.M et.al (2010): Review on non-Darcy flow in highly permeable flow porous media

Published
2018-12-30
How to Cite
Okajima, R., Ohki, Y., Taenaka, S., Moriyasu, S., Deji, T., Ueda, H., Seki, K., & Arikawa, T. (2018). VERIFICATION OF SEEPAGE FLOW CALCULATION BASED ON FLUID-GROUND WEAK COUPLING ANALYSIS MODEL. Coastal Engineering Proceedings, 1(36), structures.68. https://doi.org/10.9753/icce.v36.structures.68

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