Infiltration measurements in model embankments composed of volcanic sandy soils

Y. Kiyohara, T. Unno, M. Kazama

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

Abstract

To study seepage behavior caused by rainfall, field tests were carried out on model embankments that consisted respectively of Hachinohe Shirasu and Tsukidate soil. They are volcanic pyroclastic sediments with pumice that exist in Aomori and Miyagi Prefectures in Japan. Due to rainfall the maximum value of water content in earthfills which consist of Hachinohe Shirasu and Tsukidate soil were 40-42 percent and about 42 percent respectively. Their peak had tend to occur after each 1day and 2.5day of rainfall peak. Furthermore from the field test results, storage coefficient, which is normalized by porosity, at wetting process was 0.01-0.25 in Hachinohe Shirasu and Tsukidate soil. Subsequently, using hydraulic properties determined from laboratory tests, finite element analyses of saturated-unsaturated seepage in those embankments were performed. Comparing the calculated behavior with measured one for about three months data, after 20 days we could conclude that the calculated seepage behavior agreed with observed one. Copyright ASCE 2006.

Original languageEnglish
Title of host publicationProceedings of the Fourth International Conference on Unsaturated Soils
Pages167-178
Number of pages12
Edition147
DOIs
Publication statusPublished - 2006
Event4th International Conference on Unsaturated Soils - Carefree, AZ, United States
Duration: 2006 Apr 22006 Apr 5

Publication series

NameGeotechnical Special Publication
Number147
ISSN (Print)0895-0563

Other

Other4th International Conference on Unsaturated Soils
CountryUnited States
CityCarefree, AZ
Period06/4/206/4/5

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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