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http://dx.doi.org/10.9720/kseg.2014.1.23

Characteristics of the Stress Path of a Sabkha Layer Consisting of Carbonate Sand, as Obtained by the Triaxial Test after Particle Crushing  

Kim, Seok-Ju (Department of Civil Engineering, Gyeongbuk Provincial College)
Yi, Chang-Tok (Department of Civil, Safety and Environmental Engineering, Hankyong National University)
Jang, Jae-Ho (Department of Civil Engineering, Kumoh National Institute of Technology)
Han, Heui-Soo (Department of Civil Engineering, Kumoh National Institute of Technology)
Publication Information
The Journal of Engineering Geology / v.24, no.1, 2014 , pp. 23-38 More about this Journal
Abstract
The composition of carbonate sands from a sabkha at Ruwais in the UAE differs from that of silica sand, and these sands are crushed easily under low compression pressures. Accordingly, particle crushing of carbonate sand occurs under high pressure, which results in additional settlement and reduces the shear strength. In this study, consolidation and triaxial tests were conducted to analyze the characteristics of carbonate sands following particle crushing. The unusual shear strength graphs of the carbonate sands result from the degree of particle pre-crushing. For the range at p' > p in the p (p')-q diagram, negative (-) excess porewater pressures occur if the axial pressure causes particle crushing that induces exposure of the inner voids. In addition, the q value decreased after particle crushing. In conclusion, the unusual characteristics of the carbonate sands were induced by particle crushing. The triaxial tests revealed that the degree of particle pre-crushing influenced the excess porewater pressure.
Keywords
Sabkha; Particle crushing; Carbonate sand; Triaxial test; Stress path;
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1 Aiban, S. A., Al-Ahmadi, H. M., Asi, I. M., Siddique, Z. U., and Al-Amoudi, O. S. B., 2006, Effect of Geotextile and Cement on The Performance of Sabkha Subgrade. Buildig and Environment, 41, 807-820.   DOI   ScienceOn
2 Al-Amoudi, O. S. B., 1992, Studies on Soil-foundation Interaction in the Sabkha Environment of Eastern Province of Saudi Arabia, Ph, D. Thesis, King Fahd University of Petroleum and Minerals, Saudi Arabia, 1-12.
3 Dhowian, A. W., Erol, A. O., and Sultan, S., 1987, Settlement Predictions in Complex Sabkha Soil Profiles, Bulletin of Engineering Geology, (36), 11-21.
4 Al-Shamrani, M. A. and Dhowian, A. W., 1997, Preloading for Reduction of Compressibility Characteristics of Sabkha Soil Profiles, Engineering Geology, 48(1-2), 19-41.   DOI   ScienceOn
5 Casagrande, A., 1936, The Determination of the Preconsolidation Load and Its Practical Significance, Proceedings of 1st International Conference on Soil Mechanics and Foundation Engineering, Cambridge, Mass. 3, 60-64.
6 Coop, M. R., 1990, The mechanics of uncemented carbonate sands, Geotechnique, 40(4), 607-626.   DOI
7 Golightly, C. R. and Hyde, A. F. L., 1988, Some fundamental properties of carbonate sands, International Conference on Calcareous Cediments, perth, Australia, 1, 69-78.
8 Huang, J. T. and Airey, D. W., 1998, Properties of Artificially Cemented Carbonated Sand, Journal of Geotechnical and Geoenvironmental Engineering, 124, 492-499.   DOI   ScienceOn
9 Jaky, J., 1944, The Coefficient of Earth Pressure at Rest, Journal of the Society of Hungarian Architects and Engineers, 7, 355-358.
10 Khan, I. H. and Hasnain, S. I., 1981, Engineering Properties of Sabkha Soils in The Benghazi Plain and Construction Problems, Engineering Geology, 17(3), 175-183.   DOI   ScienceOn
11 Kim, S. J. and Han, H. S., 2013, Behavior Analysis of Particle Crushing about Sabkha Layer under Hydrotest, Journal of the Korean Geo-Environmental Society, 14(9), 57-65.
12 Kwag, J. M., 1999, A Basic Study on Crushability of Sands and Characteristics of Particle Strength, Journal of the Korean Geo-technical Society, 15(15), 193-204.   과학기술학회마을
13 Lee, K. L. and Seed, H. B., 1967, Cyclic stress conditions causing liquefaction of sand, Journal of the Soil Mechanics and Foundations Division, ASCE, 92, 47-70.
14 Miura, N. and O-hara, S. N., 1979, Particle crushing of a decomposed granite soil under shear stresses, Soils and Foundations, JGS, 19(3), 1-14.
15 Terzaghi, K., Peck, R. B. and Mesri, G., 1996, Soil mechanics in engineering practice 3rd edition, John Wiley and Sons, New York, 161-208.
16 Ismael, N. F., 1993, Laboratory and field leaching tests on coastal salt-bearing soils, Journal of Geotechnical Engineering, 119, Issue 3, 453-470.   DOI