Japanese Geotechnical Society Special Publication
Online ISSN : 2188-8027
ISSN-L : 2188-8027
9. Dams and embankments - Seepage
Soil/water/air coupled F. E. simulation of phreatic surface generation process within a river levee
Katsuyuki KawaiPhommachanh ViradethAtsushi Iizuka
Author information

2016 Volume 2 Issue 49 Pages 1714-1717


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.

Content from these authors
Previous article Next article