Soil/water/air coupled F. E. simulation of phreatic surface generation process within a river levee

• Kawai Katsuyuki

  Research Center for Urban Safety and Security, Kobe University

• Viradeth Phommachanh

  Graduate School of Engineering, Kobe University

• Iizuka Atsushi

  Research Center for Urban Safety and Security, Kobe University

抄録

In this study, the generation process of the phreatic surface within a river levee is investigated through soil/water/air coupled simulation. Here, the effects of river level fluctuation and rainfall on changes in soil moisture distribution within a river levee are considered. The constitutive model proposed by Ohno et al.1) is formulated to the initial and boundary value problems in accordance with Borja’s multi phases’ concept and is used for simulation. Consequently, it is first found that high groundwater level is maintained for ground consisting of low permeability and high soil water retentivity. Moreover, it is found that the fluctuation of river level directly influences the phreatic surface, and that, in contrast, the effect of rainfall appears after a time lag.

収録刊行物

• Japanese Geotechnical Society Special Publication

  Japanese Geotechnical Society Special Publication 2 (49), 1714-1717, 2016

  公益社団法人 地盤工学会

キーワード

• Soil/water/air coupled simulation
• river levee
• phreatic surface

詳細情報

• CRID: 1390282680741327744
• NII論文ID: 130005124135
• DOI: 10.3208/jgssp.jpn-078
• ISSN: 21888027
• Web Site: https://www.jstage.jst.go.jp/article/jgssp/2/49/2_JPN-078/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可