The ring shear apparatus is most suitable for measuring the residual strength of soils, but it is difficult to use conventional ring shear tests to measure the peak strength of low-permeability, high-plasticity clay because shear rates that completely satisfy drained conditions are unknown. Moreover, regarding residual strength, an efficient method to complete the residual state has not been established, although it is known that much deformation is necessary. Therefore this study first demonstrates the effectiveness of the newly developed ring shear apparatus through comparison with the results of triaxial compression tests. Shear-rate effects are then examined in ring shear tests using samples containing various proportions of bentonite. Finally, using results obtained using various remoulded soils, the effects of plasticity index in saturated soils on maximum and residual strength are demonstrated.
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1 October 2009
Research Article|
October 01 2009
Ring shear tests to evaluate strength parameters in various remoulded soils Available to Purchase
H. TOYOTA;
H. TOYOTA
*
* Department of Civil and Environmental Engineering, Nagaoka University of Technology, Japan.
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K. NAKAMURA;
K. NAKAMURA
†
† Department of Civil Engineering, Tottori University, Japan.
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M. SUGIMOTO;
M. SUGIMOTO
*
* Department of Civil and Environmental Engineering, Nagaoka University of Technology, Japan.
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* Department of Civil and Environmental Engineering, Nagaoka University of Technology, Japan.
† Department of Civil Engineering, Tottori University, Japan.
‡ National Research Institute for Earth Science and Disaster Prevention, Japan.
Publisher: Emerald Publishing
Received:
March 02 2008
Accepted:
February 10 2009
Online ISSN: 1751-7656
Print ISSN: 0016-8505
© 2009 Thomas Telford Ltd
2009
Geotechnique (2009) 59 (8): 649–659.
Article history
Received:
March 02 2008
Accepted:
February 10 2009
Citation
TOYOTA H, NAKAMURA K, SUGIMOTO M, SAKAI N (2009), "Ring shear tests to evaluate strength parameters in various remoulded soils". Geotechnique, Vol. 59 No. 8 pp. 649–659, doi: https://doi.org/10.1680/geot.8.029.3671
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