Bimodal and multimodal descriptions of soil-water characteristic curves for structural soils

Shiyu Liu, Noriyuki Yasufuku, Qiang Liu, Kiyoshi Omine, Hazarika Hemanta

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Many empirical models have been developed to describe soil-water characteristic curves (SWCCs). Unfortunately, few functions adequately describe SWCCs of structured soils. In the presented study, a bimodal and a multimodal SWCCs functions have been developed for the purpose of studying unsaturated water flow and solute transport in structured soils. The model involves two or multiple overlaying continua pore systems, the pore probability density functions of systems are assumed as lognormal distribution and them can be superposed to obtain the overall probability density function of the soil. The proposed functions are capable of simulating bimodal or multimodal SWCCs using parameters which can be related to physical properties of the structural soils. After verification, we conclude that proposed function fit bimodal SWCCs very well. These models can potentially be used as effective tools for indentifying hydraulic porosities in the structural medium.

本文言語英語
ホスト出版物のタイトル5th China-Japan Geotechnical Symposium
出版社People's Communications Press
ページ241-248
ページ数8
ISBN(印刷版)9787114105821
出版ステータス出版済み - 1 1 2013
イベント5th China-Japan Geotechnical Symposium: New Advances in Geotechnical Engineering - Chengdu, 中国
継続期間: 5 18 20135 19 2013

出版物シリーズ

名前5th China-Japan Geotechnical Symposium

その他

その他5th China-Japan Geotechnical Symposium: New Advances in Geotechnical Engineering
国/地域中国
CityChengdu
Period5/18/135/19/13

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学

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