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http://dx.doi.org/10.12814/jkgss.2014.13.4.069

Unsaturated Shear Strength Characteristics of Nakdong River Sand and Clay  

Lee, Dae-Young (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.13, no.4, 2014 , pp. 69-75 More about this Journal
Abstract
The shear strength characteristics of an unsaturated earth material are highly important not only for evaluating the seepage characteristics but also the stability of levee for a lifelong. In this study, unsaturated strength characteristics of Nak-dong river sand and clay that frequently used for the levee construction in southern province of Korea were analyzed using unsaturated triaxial compressive test. The strength characteristics due to the variation of matric suction were analyzed using multi-stage compression technique and the results were directly compared with the non-linear formulation for the apparent cohesion ($C_{max}$), and the friction component ${\varphi}^b$ were determined and evaluated from the test for the application of linear Mohr-Coulomb failure criteria. Cohesion and friction characteristics of the unsaturated levee material under various suction phases were also explored during this study.
Keywords
Leeve material; Unsaturated triaxial compression test; Shear strength characteristic; Matric suction;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 Choi, B. H., Kim, K. M., Kim, J. M. and Lee, D. Y. (2008), "Seepage Characteristics of Domestic Bed Sediments Mixed with Good-quality Soil as Levee Fill Material", Journal of the Korean Geotechnical Society, Vol.24, No.10, pp.105-111.   과학기술학회마을
2 Lee, S. J., Lee, S. R. and Jang, B. S. (2002), "Unsaturated Shear Strength Characteristics of Weathered Granite Soils", Journal of Korea Society of Civil Engineers-C, Vol.22, No.1, pp.81-88.   과학기술학회마을
3 Lim, S. Y. (2007), "The Shear Characteristics Unsaturated Sandy Soils", Journal of the Korean Geotechnical Society, Vol.23, No.10, pp.57-64.   과학기술학회마을
4 Korea Institute of Construction Technology. (2007), A Study on Levee Construction Method using Bed Sediment, Korea Institue of Construction and Transportation Technology Evaluation and Planing, R&D Final Report.
5 Kim, Y. S. and Kim, D. M. (2008), "Characteristics of Undrained Cyclic Shear Behavior of Nak-Dong River Sand by Silt Contents", Journal of the Korean Geotechnical Society, Vol.24, No.11, pp.79-89.   과학기술학회마을
6 Kim, G. I., Shin, J. S., Park, S. S. and Kim, K. Y. (2013), "Unsaturated Shear Strength Characteristics of Nak-Dong River Silty Sand", Journal of the Korean Geotechnical Society, Vol.29, No.2, pp.47-56.   과학기술학회마을   DOI
7 Fredlund, D. G. and Rahardjo, H. (1995), Soil Mechanics for Unsaturated Soils, John Wiley & Sons Inc.
8 Song, Y. S., Hwang, W. K., Jung, S. J. and Kim, T. H. (2012), "A Comparative Study of Suction Stress between Sand and Silt under Unsaturated Conditions", Engineering Geology, Vol.124, pp.90-97.   DOI   ScienceOn
9 Song, Y. S. (2014), "Suction Stress in Unsaturated Sand at Different Relative Densities", Engineering Geology, Vol.176, pp.1-10.   DOI