Prediction of compaction behavior of heavy clayey soil beneath an off-road vehicle

Tomohiro Miyazaki, Takashi Okayasu, Eiji Inoue

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

抄録

Soil compaction is one of the major subjects in a well-mechanized modern agricultural system. In order to reduce the risk of soil compaction, the mechanical impacts to topsoil and subsoil during agricultural machinery operations have to be controlled. Soil compaction test using an off-road vehicle was conducted in the reclamation farmland at Isahaya bay, Nagasaki, Japan. The farmland was formed by sedimentary heavy clayey soil having high water-holding capacity and strong cohesion. In all the tests, the penetration resistance (cone index) of the soil and the bulk density before and after the vehicle running was measured in the field. The detail of soil mechanical properties was obtained from typical soil tests such as the standard compression, oedometer and triaxial compression test, respectively. On the other hand, an unconventional elastoplastic constitutive model for soils having the structure and cohesion was proposed by the superloading-yield/subloading surface model with Hashiguchi and Mase concept (2007). The validity of the model was evaluated by comparisons with the test data mentioned above.

本文言語英語
ホスト出版物のタイトルAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
出版社American Society of Agricultural and Biological Engineers
ページ2666-2675
ページ数10
ISBN(印刷版)9781618391568
出版ステータス出版済み - 1 1 2011
イベントAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, 米国
継続期間: 8 7 20118 10 2011

出版物シリーズ

名前American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
4

その他

その他American Society of Agricultural and Biological Engineers Annual International Meeting 2011
国/地域米国
CityLouisville, KY
Period8/7/118/10/11

All Science Journal Classification (ASJC) codes

  • 農業および作物学

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