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

Tomohiro Miyazaki, Takashi Okayasu, Eiji Inoue

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

Abstract

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.

Original languageEnglish
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
PublisherAmerican Society of Agricultural and Biological Engineers
Pages2666-2675
Number of pages10
ISBN (Print)9781618391568
Publication statusPublished - Jan 1 2011
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, United States
Duration: Aug 7 2011Aug 10 2011

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
Volume4

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011
CountryUnited States
CityLouisville, KY
Period8/7/118/10/11

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

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