Effects of wetting-drying and stress ratio on anisotropic stiffness of an unsaturated soil at very small strains

Canadian Geotechnical Journal

Volumn 46, Issue 9, 2009, Pages 1062-1076

  Ng, C W W ^a   Xu, J ^a   Yung, S Y ^a  

^a HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Hong Kong)

Author keywords

Completely decomposed tuff; Stiffness anisotropy very small strain shear modulus; Stress ratio; Unsaturated; Wetting drying

Indexed keywords

COMPLETELY DECOMPOSED TUFF; STIFFNESS ANISOTROPY VERY SMALL STRAIN SHEAR MODULUS; STRESS RATIO; UNSATURATED; WETTING-DRYING;

ANISOTROPY; CURING; DEWATERING; ELASTIC MODULI; SHEAR STRAIN; SHEARING; SOIL STRUCTURE INTERACTIONS; SOIL TESTING; SOILS; STIFFNESS; WETTING;

SHEARING MACHINES;

ANISOTROPY; SHEAR MODULUS; SHEAR STRAIN; SOIL WATER; STIFFNESS; STRESS ANALYSIS; SUCTION; TRIAXIAL TEST; TUFF; VADOSE ZONE; WETTING-DRYING CYCLE;

EID: 70349515199     PISSN: 00083674     EISSN: None     Source Type: Journal    
DOI: 10.1139/T09-043     Document Type: Article

References (38)

1. Alonso, E.E., Gens, A., and Josa, A. 1990. A constitutive model for partially saturated soils. Géotechnique, 40(2): 405-430.
2. ASTM. 2006. Standard practice for classification of soils for engineering purposes (Unified Soil Classification System). ASTM standard D2487. American Society of Testing and Materials, West Conshohocken, Pa. doi:10.1520/D2487-06E01.
3. Atkinson, J.H., and Sallförs, G. 1991. Experimental determination of stress-strain-time characteristics in laboratory and in-situ tests. In Proceedings of the 10th European Conference on Soil Mechanics and Foundation Engineering, Florence, Italy, 26- 30. May 1991. A.A. Balkema, Rotterdam, the Netherlands. Vol. 3. pp. 915-956.
4. Barrera, M., Romero, E., Lioret, A., and Gens, A. 2000. Collapse tests on isotropic and anisotropic compacted soils. In Experimental Evidence and Theoretical Approaches in Unsaturated Soils, Proceedings of an International Workshop, Trento, Italy, 10-12 April 2000. Edited by A. Tarantino and C. Mancuso. A.A. Balkema, Rotterdam, the Netherlands. pp. 33-45.
5. Bellotti, R., Jamiolkowski, M., Lo Presti, D.C.F., and O'Neill, D.A. 1996. Anisotropy of small strain stiffness in Ticino sand. Géotechnique, 46(1): 115-131.
6. British Standards Institution. 1990. British standard methods of test for soils for civil engineering purposes. British Standards Institution, London.
7. Cabarkapa, Z., Cuccovillo, and Gunn, M. 1999. Some aspects of the pre-failure behaviour of unsaturated soil. In Proceedings of the Second International Conference on Pre-failure Deformation Characteristics of Geomaterials, Torino, Italy, 27-29 September 1999. A.A. Balkema, Rotterdam. Vol. 1. pp. 159-165.
8. Dyvik, R., and Madshus, C. 1985. Laboratory measurement of Gmax using bender elements. In Proceedings of the ASCE Annual Convention: Advances in the Art of Testing Soils under Cyclic Conditions, Detroit, Mich., 24 October 1985. Edited by V. Khosla. American Society of Civil Engineers, New York. pp. 186- 196.
9. Germine, J.T., and Ladd, C.C. 1988. Triaxial testing of saturated cohesive soils. In Advanced triaxial testing of soil and rock. ASTM STP 977. American Society for Testing and Materials, Philadelphia, Pa. pp. 421-459.
10. Hilf, J.W. 1956. An investigation of pore-water pressure in compacted cohesive soils. U.S. Department of the Interior, Bureau of Reclamation, Design and Construction Division, Denver, Colo. Technical Memorandum No. 654.
11. Hillel, D. 1982. Introduction to soil physics. Acadmic Press, San Diego, Calif.
12. Jardine, R.J., Kuwano, R., Zdravkovic, L., and Thornton, C. 1999. Some fundamental aspects of the pre-failure behaviour of granular soils. In Proceedings of the Second International Conference on Pre-failure Deformation Characteristics of Geomaterials, Torino, Italy, 27-29 September 1999. A.A. Balkema, Rotterdam, the Netherlands. Vol. 2. pp. 1077-1111.
13. Kuwano, R., Connolly, T.M., and Jardine, R.J. 2000. Anisotropic stiffness measurements in a stress-path triaxial cell. Geotechnical Testing Journal, 23(2): 141-157. doi:10.1520/GTJ11039J.
14. Lacasse, S., and Berre, T. 1988. Triaxial testing methods for soils. In Advanced triaxial testing of soil and rock. ASTM STP 977. American Society for Testing and Materials, Philadelphia, Pa. pp. 264-289.
15. Ladd, R.S. 1978. Preparing test specimens using undercompaction. Geotechnical Testing Journal, 1(1): 16-23. doi:10.1520/ GTJ10364J.
16. Li, X.S. 2003. Effective stress in unsaturated soil: a microstructural analysis. Géotechnique, 53(2): 273-277. doi:10.1680/geot.53.2. 273.37273.
17. Mancuso, C., Vassallo, R., and d'Onofrio, A. 2002. Small strain behavior of a silty sand in controlled-suction resonant columntorsional shear tests. Canadian Geotechnical Journal, 39(1): 22-31. doi:10.1139/t01-076.
18. Marinho, E.A.M., Chandler, R.J., and Crilly, M.S. 1995. Stiffness measurements on an unsaturated high plasticity clay using bender elements. In Proceedings of the First International Conference on Unsaturated Soils, UNSAT '95, Paris, France, 6- 8 September 1995. A.A. Balkema, Rotterdam, the Netherlands. Vol. 2. 535-539.
19. Mendoza, C.E., and Colmenares, J.E. 2006. Influence of the suction on the stiffness at very small strains. In Proceedings of the Fourth International Conference on Unsaturated Soils, Carefree, Ariz., 2-6 April 2006. Geotechnical Special Publication 147. Edited by G.A. Miller, C.E. Zapata, S.L. Houston, and D.G. Fredlund. American Society of Civil Engineers, Reston, Va. pp. 529-540.
20. Ng, C.W.W., and Leung, E.H.Y. 2007. Determination of shear wave velocities and shear moduli of completely decomposed tuff. Journal of Geotechnical and Geoenvironmental Engineering, 133(6): 630-640. doi:10.1061/(ASCE)1090-0241(2007) 133:6(630).
21. Ng, C.W.W., and Menzies, B. 2007. Unsaturated soil mechanics and engineering. Taylor & Francis, London. ISBN 978-0-415- 43679-3.687p.
22. Ng, C.W.W., and Pang, Y.W. 2000a. Experimental investigations of the soil-water characteristics of a volcanic soil. Canadian Geotechnical Journal, 37(6): 1252-1264. doi:10.1139/cgj-37-6- 1252.
23. Ng, C.W.W., and Pang, Y.W. 2000b. Influence of stress state on soil-water characteristics and slope stability. Journal of Geotechnical and Geoenvironmental Engineering, 126(2): 157-166. doi:10.1061/(ASCE)1090-0241(2000)126:2(157).
24. Ng, C.W.W., and Yung, S.Y. 2008. Determination of the anisotropic shear stiffness of an unsaturated decomposed soil. Géotechnique, 58(1): 23-35. doi:10.1680/geot.2008.58.1.23.
25. Ng, C.W.W., Pun, W.K., and Pang, R.P.L. 2000. Small strain stiffness of natural granitic saprolite in Hong Kong. Journal of Geotechnical and Geoenvironmental Engineering, 126(9): 819-833. doi:10.1061/(ASCE)1090-0241(2000)126:9(819).
26. Ng, C.W.W., Leung, E.H.Y., and Lau, C.K. 2004. Inherent anisotropic stiffness of weathered geomaterial and its influence on ground deformations around deep excavations. Canadian Geotechnical Journal, 41(1): 12-24. doi:10.1139/t03-066.
27. Pennington, D.S., Nash, D.F.T., and Lings, M.L. 1997. Anisotropy of G0 shear stiffness in Gault clay. Géotechnique, 47(3): 391-398.
28. Pennington, D.S., Nash, D.F.T., and Lings, M.L. 2001. Horizontally mounted bender elements for measuring anisotropic shear moduli in triaxial clay specimens. Geotechnical Testing Journal, 24(2): 133-144. doi:10.1520/GTJ11333J.
29. Qian, X., Gray, D.H., and Woods, R.D. 1993. Voids and granulometry: effects on shear modulus of unsaturated sands. Journal of Geotechnical Engineering, 119(2): 295-314. doi:10.1061/ (ASCE)0733-9410(1993)119:2(295).
30. Roesler, S.K. 1979. Anisotropic shear modulus due to stress anisotropy. Journal of Geotechnical Engineering, 105(7): 871-880.
31. Simpson, B. 1992. Thirty-second Rankine lecture: Retaining structures: Displacement and design. Géotechnique, 42(4): 541-576.
32. Sivakumar, V. 1993. A critical state framework for unsaturated soils. Ph.D. thesis, University of Sheffield, Sheffield, UK.
33. Stokoe, K.H., II, Hwang, S.K., Lee, J.N.K., and Andrus, R.D. 1995. Effects of various parameters on the stiffness and damping of soils at small to medium strains. In Proceedings of the International Symposium on Pre-failure Deformation of Geomaterials, Sapporo, Japan, 12-14 September 1994. Edited by S. Shibuya, T. Mitachi, and S. Miura. A.A. Balkema, Rotterdam, the Netherlands. Vol. 2. pp. 785-816.
34. Vassallo, R., Mancuso, C., and Vinale, F. 2007. Effects of net stress and suction history on the small strain stiffness of a compacted clayey silt. Canadian Geotechnical Journal, 44(4): 447-462. doi:10.1139/T06-129.
35. Viggiani, G., and Atkinson, J.H. 1995. Interpretation of bender element tests. Géotechnique, 45(1): 149-154.
36. Wheeler, S.J., Sharma, R.S., and Buisson, M.S.R. 2003. Coupling of hydraulic hysteresis and stress-strain behaviour in unsaturated soils. Géotechnique, 53(1): 41-54. doi:10.1680/geot.53.1.41. 37252.
37. Yimsiri, S., and Soga, K. 2002. Application of micromechanics model to study anisotropy of soils at small strains. Soils and Foundations, 42(5): 15-26.
38. Zeng, X., and Ni, B. 1999. Stress-induced anisotropic Gmax of sands and its measurement. Journal of Geotechnical and Geoenvironmental Engineering, 125(9): 741-749. doi:10.1061/(ASCE) 1090-0241(1999)125:9(741).