The influence on the slope stability of the initial degree of saturation of a fill ground

Tomohiro Mori, R. Uzuoka, M. Kazama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a case study on a numerical prediction of seepage and seismic behaviors of an unsaturated fill slope. In this study, the numerical prediction is performed by using a dynamic threephase (soil, water and air) coupled analysis based on porous media theory and constitutive models. In-situ observation at the target fill slope of the case study has been performed since 2006. The ground water level, the soil moisture and the water quantity gushed up from the toe of the fill slope are monitored continuously. These observation data were used for verification of the analysis. First, distributions of water saturation in the fill slope are simulated by performing seepage analyses to reproduce the in-situ ground water level in the fill slope. Next, seismic responses of the fill slope during a future scenario earthquake are predicted under different moisture conditions of unsaturated fill.

Original languageEnglish
Title of host publicationUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Pages1267-1272
Number of pages6
Publication statusPublished - 2011 Dec 1
Event5th International Conference on Unsaturated Soils - Barcelona, Spain
Duration: 2010 Sep 62010 Sep 8

Publication series

NameUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Volume2

Other

Other5th International Conference on Unsaturated Soils
CountrySpain
CityBarcelona
Period10/9/610/9/8

ASJC Scopus subject areas

  • Soil Science

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