Experimental Study on Loading-Creep Coupling Effect in Rockfill Material
Publication: International Journal of Geomechanics
Volume 17, Issue 9
Abstract
Drained triaxial tests were performed to investigate the loading-creep coupling effect in a rockfill material using a modified triaxial apparatus. The modified apparatus can switch between stress-controlled and strain-controlled modes; thus, it enabled long-term multistage loading and creep. The test program was carefully designed to study two main concerns: (1) influence of creep on deforming characteristics under postcreep loading and (2) influence of loading history on creep characteristics. A strong coupling effect between loading and creep was observed in the tests. It was found that creeps change the deforming characteristics in the postcreep-loading stages through strain hardening, and the creep was influenced not only by the stress state but also by the precreep-loading pattern. The creeps after elastic and elastoplastic loadings showed different behaviors. It was further shown that the loading-creep coupling effect can be interpreted using the hardening plasticity theory.
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Acknowledgments
The authors gratefully acknowledge the financial support from the Natural Science Foundation of China (Grants 51479099 and 51379103). C. Peng acknowledges the financial support from the Otto Pregl Foundation for Fundamental Geotechnical Research in Vienna.
References
Augustesen, A., Liingaard, M., and Lade, P. V. (2004). “Evaluation of time-dependent behavior of soils.” Int. J. Geomech., 137–156.
Charles, J. A. (1990). “Laboratory compression tests and the deformation of rockfill structures.” Advances in rockfill structures, Springer, Dordrecht, Netherlands, 73–95.
Delfosse-Ribay, E., Djeran-Maigre, I., Cabrillac, R., and Gouvenot, D. (2006). “Factors affecting the creep behavior of grouted sand.” J. Geotech. Geoenviron. Eng., 488–500.
Feda, J. (1992). Creep of soils and related phenomena, Elsevier, Amsterdam, Netherlands.
Hunter, G., and Fell, R. (2003). “Rockfill modulus and settlement of concrete face rockfill dams.” J. Geotech. Geoenviron. Eng., 909–917.
Justo, J. L., and Durand, P. (2000). “Settlement-time behaviour of granular embankments.” Int. J. Numer. Anal. Methods Geomech., 24(3), 281–303.
Kaliakin, V. N., and Dafalias, Y. F. (1990). “Theoretical aspects of the elastoplastic-viscoplastic bounding surface model for cohesive soils.” Soils Found., 30(3), 11–24.
Kuwano, R., and Jardine, R. J. (2002). “On measuring creep behaviour in granular materials through triaxial testing.” Can. Geotech. J., 39(5), 1061–1074.
Lade, P. V. (1994). “Creep effects on static and cyclic instability of granular soils.” J. Geotech. Eng., 404–419.
Lade, P. V., and Liu, C. T. (1998). “Experimental study of drained creep behavior of sand.” J. Eng. Mech., 912–920.
Liingaard, M., Augustesen, A., and Lade, P. V. (2004). “Characterization of models for time-dependent behavior of soils.” Int. J. Geomech., 157–177.
Maranha das Neves, E., ed. (1991). Advances in rockfill structure, Springer, Dordrecht, Netherlands.
Mejia, C. A., Vaid, Y. P., and Negussey, D. (1988). “Time dependent behavior of sand.” Proc., Int. Conf. on Rheology and Soil Mechanics, Elsevier, London, 312–326.
Mi, Z., Shen, Z., and Li, G. (2002). “Creep model for high concrete rockfill dams.” Hydro-Sci. Eng., 24(2), 35–41.
Murayama, S., Michihiro, K., and Sakagami, T. (1984). “Creep characteristics of sand.” Soils Found., 24(2), 1–15.
Naghdi, P. M., and Murch, S. A. (1963). “On the mechanical behavior of viscoelastic/plastic solids.” J. Appl. Mech., 30(3), 321–328.
Oldecop, L. A., and Alonso, E. (2007). “Theoretical investigation of the time-dependent behaviour of rockfill.” Géotechnique, 57(3), 289–301.
Oldecop, L. A., and Pinyol, N. M. (2012). “Time-dependent behaviour of rockfill embankments and dams.” Innovative numerical modelling in geomechanics, CRC, Boca Raton, FL, 161–170.
Olszak, W., and Perzyna, P. (1966). “The constitutive equations of the flow theory for a non-stationary yield condition.” Applied Mechanics, Springer, Berlin, 545–553.
Peng, C., Wu, W., and Zhang, B. Y. (2015). “Three-dimensional simulations of tensile cracks in geomaterials by coupling meshless and finite element method.” Int. J. Numer. Anal. Methods Geomech., 39(2), 135–154.
Peng, Z. G. (1999). “Deformation analysis of Xibeikou CFRD after 7 years of impoundment.” Water Res. Hydropower Eng., 30(9), 24–27.
Shen, Z. (1994). “Creep model of geomaterials and its application.” Hydro-Sci. Eng., 31, 335–342.
Wang, Y., and Yin, Z. Z. (2000). “A rheology model of rockfill used in the rheology analysis of concrete face rockfill dam.” Rock Soil Mech., 21(3), 227–230.
Wu, Y. K., Zhang, B. Y., Yu, Y. Z., and Zhang, Z. L. (2016). “Consolidation analysis of Nuozhadu high earth-rockfill dam based on the coupling of seepage and stress-deformation physical state.” Int. J. Geomech., 04015085.
Zhang, B. Y., Wang, J. G., and Shi, R. F. (2004). “Time-dependent deformation in high concrete-faced rockfill dam and separation between concrete face slab and cushion layer.” Comput. Geotech., 31(7), 559–573.
Zhou, M. Z., Zhang, B. Y., Peng, C., and Wu, W. (2016). “Three-dimensional numerical analysis of concrete-faced rockfill dam using dual-mortar finite element method with mixed tangential contact constraints.” Int. J. Numer. Anal. Methods Geomech., 40(15), 2100–2122.
Zhou, W., Chang, X. L., Zhou, C. B., and Liu, X. H. (2010). “Creep analysis of high concrete-faced rockfill dam.” Int. J. Numer. Methods Biomed. Eng., 26(11), 1477–1492.
Zhou, W., Hua, J., Chang, X., and Zhou, C. (2011). “Settlement analysis of the Shuibuya concrete-face rockfill dam.” Comput. Geotech., 38(2), 269–280.
Information & Authors
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Published In
International Journal of Geomechanics
Volume 17 • Issue 9 • September 2017
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Aug 9, 2016
Accepted: Feb 8, 2017
Published online: Jun 2, 2017
Published in print: Sep 1, 2017
Discussion open until: Nov 2, 2017
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