Browse > Article
http://dx.doi.org/10.7843/kgs.2008.24.6.37

Prediction of Tensile Strength of Wet Sand (II) : Validation  

Kim, Tae-Hyung (Division of Civil and Environmental Engrg., Korea Maritime Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.6, 2008 , pp. 37-44 More about this Journal
Abstract
At low normal stress levels, tensile strength of sand characteristically varies with either saturation or suction of soil in an up-and-down manner with a peak tensile strength that can occur at any degree of saturation. A theory that accurately predicts tensile strength of wet sand was presented in the previous study. In this study, the results of uniaxial tensile, suction-saturation and direct shear tests obtained from three sands (Esperance sand from Seattle, Washington, clean sand from Perth, Australia, and Ottawa sand) are used to validate the proposed theory. The closed form expression of the proposed theory can predict well the experimental data obtained from these sands in terms of the variation patterns of tensile strength over the entire saturation regimes, the magnitude of the tensile strength, its peak value, and the corresponding degree of saturation when the peak strength occurs.
Keywords
Direct shear; Suction-saturation; Tensile strength; Uniaxial tensile;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Al-Hussaini, M.M. and Townsend F.C. (1974), "Tensile testing of soils: A literature review", Miscellaneous Paper S-74-10U.S. Army Waterways Experiment Station, Vicksburg, MS
2 Alshibli, K. A. and Sture, S. (1999), "Sand Shear Band Thickness Measurements by Digital Imaging Techniques", Journal of Computing in Civil Engineering, Vol.13, No.2, pp.103-109   DOI   ScienceOn
3 Kim, T-H. (2001), Moisture-induced tensile strength and cohesion in sand, PhD Dissertation, Department of Civil, Environmental and Architectural Engineering, University of Colorado, Boulder, CO
4 Perkins, S. W. (1991). Modeling of regolith structure interaction in extraterrestrial constructed facilities, Ph.D. thesis, University of Colorado at Boulder
5 Kim, T-H. and Hwang, C. (2003), "Modeling of tensile strength on moist granular earth material at low water content", Engineering Geology, Vol.69, pp.233-244   DOI   ScienceOn
6 Lu, N. and Likos, W.J. (2006), "Suction stress characteristic curve for unsaturated soil", Journal of Geotechnical and Geoenvironmental Engineering, Vol.132, No.2, pp.131-142   DOI   ScienceOn
7 Znidarcic, D., Illangasekare, T. and Manna, M. (1991), Laboratory testing and parameter estimation for two-phase flow problems. ASCE Geotechnical Special Publications 27, pp.1089-1099
8 Lu, N., Wu, B., and Tan, C.P. (2005), "A tensile strength apparatus for cohesionless soils", Proceedings of Experts 2005, A. Tarantino et al. (eds.), Balkema
9 Likos, W.J., Wayllace, A., Lu, N., and Godt, J. (2007), "Modified direct shear apparatus for suction-controlled testing at low stress levels", Geotechnical Testing Journal. Submitted
10 Lu, N., Wu, B., and Tan, C.P. (2007), "Tensile strength characteristics of unsaturated sands", Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol.133, No.2, pp.144-154
11 Bishop, A.W. and Garga, V.K. (1969), "Drained tests on London clay", Geotechnique, Vol.19, No.2, pp.309-312   DOI
12 ASTM D 3080-72 (1979), "Direct Shear Test of Soils under Consolidated Drained Conditions", pp.496-500