MECHANICAL PROPERTIES OF UNSATURATED LOW QUALITY ROCKFILLS

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概要

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• This paper presents mechanical properties of two unsaturated low quality rockfills (Materials O and S) with almost the same water absorption values of particles and comprehensive experimental data in order to establish an elastoplastic model for rockfills. The data were obtained from soil water retention, oedometer, triaxial compression and rock particle compression tests. The soil column method used here may give certain suction ranges to obtain soil water retention curves for rockfills. In oedometer and triaxial tests, there is quite a difference in the deformation and shear strength properties between Materials O and S. The properties for Material S are strongly affected by initial water contents of specimens but there was little affection on those of Material O. In compression tests for rock particles, the breakage strength values for particles of Material S were strongly affected by the water content conditions, but the affection for those of Material O was remarkably smaller than that for Material S. The difference in mechanical behavior between Materials O and S may arise from the difference in breakage characteristics for particles of both materials.

• 社団法人地盤工学会の論文

著者

• KOHGO YUJI

  Tokyo University of Agricultural and Technology

• ASANO ISUMU

  Agriculture Forestry and Fishers Research Council

• HAYASHIDA YOICHI

  Department of Geotechnical and Hydraulic Engineering, National Institute for Rural Engineering

• Kohgo Yuji

  Tokyo Univ. Agriculture And Technol. Tokyo Jpn

• Hayashida Yoichi

  Department Of Geotechnical And Hydraulic Engineering National Institute For Rural Engineering

関連論文

• MECHANICAL PROPERTIES OF UNSATURATED LOW QUALITY ROCKFILLS
• AN ELASTOPLASTIC MODEL FOR UNSATURATED ROCKFILLS AND ITS SIMULATIONS OF LABORATORY TESTS

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