Novel rapid measurement system of undisturbed soils water characteristics curve utilizing the continuous pressurization method

Adel Alowaisy, Noriyuki Yasufuku, Ryohei Ishikura, Masanori Hatakeyama, Shuu Kyono

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

抄録

Through this paper, a sampling methodology and a novel full automatic system adopting the continuous pressurization method which is capable of determining the Soil Water Characteristics Curve (SWCC) for both remoulded and undisturbed samples in a very short time were developed. The proposed system was validated by comparing the SWCCs of standard testing soils obtained using the developed system to the SWCCs obtained using a conventional method. Remoulded and undisturbed natural soil samples were tested, where the degree of disturbance influence on the obtained SWCC was discussed. In addition, the undisturbed samples containing moulds material influence on the obtained SWCC was investigated. It was found that remoulded samples do not properly represent the in-situ conditions with significant error that should be carefully considered when conducting analysis and proposing countermeasures against unsaturated soils related Geo-disasters. In addition, the material which the containing mould is made from has minor influence on the obtained SWCC which can be neglected. Finally, it can be concluded that the developed undisturbed soil water characteristics curve obtaining system is direct, rapid, reliable and simple. In addition, the proposed undisturbed sampling and testing methodology can be used to accurately evaluate the spatial variations of the SWCC regardless the heterogeneity of the soil profile.

本文言語英語
ホスト出版物のタイトル7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
編集者Erdin Ibraim, Alessandro Tarantino
出版社EDP Sciences
ISBN(電子版)9782759890644
DOI
出版ステータス出版済み - 6 25 2019
イベント7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 - Glasgow, 英国
継続期間: 6 26 20196 28 2019

出版物シリーズ

名前E3S Web of Conferences
92
ISSN(印刷版)2555-0403
ISSN(電子版)2267-1242

会議

会議7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
Country英国
CityGlasgow
Period6/26/196/28/19

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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