Abstract
This paper describes an investigation into the effect of fabric anisotropy on the phase transformation (PT) behavior of granular soil by a DEM (discrete element method) analysis. The results indicate that the PT behavior of granular soil depends on fabric anisotropy created in the particle deposition process. As the deviation of principal anisotropy direction of soil fabric from the loading direction escalates, the mean effective and deviatoric stresses decrease, with the PT behavior being more easily developed. At a microscopic level, fabric anisotropy relating to both contact and particle orientations is found not to be a suitable micromechanical indicator of macroscopic PT behavior, while the occurrence of PT behavior is accompanied by the emergence of local minimum coordination number (or mean contact normal force). Furthermore, the PT line in e c – log pʹ plane is revealed to be non-unique, and fabric anisotropy is a fundamental factor affecting the position of PT line in e c – log pʹ plane.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Vaid, Y.P., Chung, E.K.F., Kuerbis, R.H.: Stress path and steady state. Can. Geotech. J. 27, 1–7 (1990)
Georgiannou, V.N., Burland, J.B., Hight, H.W.: The undrained behavior of clayey sands in triaxial compression and extension. Géotechnique 40(3), 431–449 (1990)
Verdugo, R., Ishihara, K.: The steady state of sandy soils. Soils Found. 36(2), 81–91 (1996)
Lade, P.V., Yamamuro, J.A.: Effects of non-plastic fines on static liquefaction of sands. Can. Geotech. J. 34, 918–928 (1997)
Chu, J., Leroueil, S., Leong, W.K.: Unstable behavior of sand and its implication for slope instability. Can. Geotech. J. 40, 873–885 (2003)
Murthy, T.G., Loukidis, D., Carraro, J.A.H., Salgado, R.: Undrained monotonic response of clean and silty sands. Géotechnique 57(3), 273–288 (2007)
Yang, J., Dai, B.B.: Is the quasi-steady state a real behaviour? A micromechanical perspective. Géotechnique 61(2), 175–184 (2011)
Negussey, D., Wijewickreme, W.K.D., Vaid, Y.P.: Constant-volume friction angle of granular materials. Can. Geotech. J. 25, 50–55 (1988)
Ishihara, K.: Liquefaction and flow failure during earthquakes. Géotechnique 43(3), 351–415 (1993)
Nakata, Y., Hyodo, M., Yasufuku, N.: Flow deformation of sands subjected to principal stress rotation. Soils Found. 38(2), 115–128 (1998)
Cundall, P.A., Strack, O.D.L.: A discrete numerical model for granular assemblies. Géotechnique 29(1), 47–65 (1979)
Dai, B.B., Yang, J., Zhou, C.Y., Luo, X.D.: DEM investigation on the effect of sample preparation on the shear behavior of granular soil. Particuology 25, 111–121 (2016)
Rothenburg, L., Bathurst, R.J.: Analytical study of induced anisotropy in idealized granular materials. Géotechnique 39(4), 601–614 (1989)
Dai, B.B., Yang, J., Luo, X.D.: A numerical analysis of the shear behavior of granular soil with fines. Particuology 21, 160–172 (2015)
Dai, B.B., Yang, J., Zhou, C.Y.: Micromechanical origin of angle of repose in granular materials. Granul. Matter 19, 24 (2017)
Uthayakumar, M., Vaid, Y.P.: Static liquefaction of sands under multiaxial loading. Can. Geotech. J. 35, 273–283 (1997)
Yoshimine, M., Ishihara, K., Vargas, W.: Effects of principal stress direction and intermediate principal stress on undrained shear behavior of sand. Soils Found. 38(3), 179–188 (1998)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Dai, BB., Li, AG., Xu, K. (2018). A Numerical Study of the Fabric Anisotropy Effect on the Phase Transformation Behavior of Granular Soil. In: Zhou, A., Tao, J., Gu, X., Hu, L. (eds) Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0125-4_46
Download citation
DOI: https://doi.org/10.1007/978-981-13-0125-4_46
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0124-7
Online ISBN: 978-981-13-0125-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)