Choice of mathematic models of soils in static and seismic analyses of embankment dams

Cover Page

Abstract


Relevance. Numerical analyses of behavior or stress-strain state (SSS) of embankment dams are usually performed using various computational programs, which use different, often complex mathematical models of soils. However, the right choice of these models is left to the program user, who usually has not enough experience in this field of knowledge, and therefore the results of these analyses are often obscure and erroneous. The aims of the work - development of recommendations for selecting the most reliable mathematical models of soils in numerical analyses of embankment dams and comparing these models with the most common models in modern world practice of their application. Methods. Deep comparative analysis of many soil models was conducted on the use of the soil models in numerical analyses of embankment dams during author’s work in ICOLD Committee on Analysis and Dam Design. Results. On the basis of the evaluation of the reliability of soil models, recommendations were obtained on the choice and application of these models in the numerical analyses of SSS of embankment dams under action of static and seismic impacts; interactions between the results of these analyses and dam monitoring data were identified.


About the authors

Yury P. Lyapichev

Hydroproject Institute (Joint Stock Company); International Commission on Large Dams (ICOLD)

Author for correspondence.
Email: lyapichev@mail.ru
SPIN-code: 3096-6362
2 Volokolamskoe Highway, Moscow, 125993, Russian Federation; 61 Kleber Ave., Paris, 75016, French Republic

expert for foreign projects of JSC “Hydroproject Institute”, member of the International Commission on Large Dams (ICOLD), Doctor of Technical Sciences, Professor

References

  1. ICOLD Bulletins. No. 122. Computational procedures for dams. ICOLD Edition, Paris; 2001.
  2. ICOLD Bulletins. № 155. Guidelines for use of numerical models in dams. ICOLD Edition, Paris; 2013.
  3. Newmark N.M., Rosenblueth E. Fundamentals of Earthquake Engineering. Prentice-Hall, Inc., Englewood Cliffs, N. J.; 1971.
  4. Duncan J.M., Chang Y.Y. Nonlinear analysis of stress and strain in soils. Journal of the Soil Mechanics and Foundations Division. 1970;96(5):1629-1653.
  5. Mroz Z., Norris V., Zienkiewicz O. Anisotropic hardening model for soils and its application to cyclic loading. Int. J. Num. & Anal. Methods in Geomechanics. 1978;2:203-221.
  6. Roscoe K.H., Schofield A.N. Mechanical behaviour of an idealized ‘wet clay’. Proc. of 2nd European Conf. on Soil Mechanics (Wiesbaden). 1963;1:47-54.
  7. Roscoe K.H., Burland J.B. On the generalized stress-strain behaviour of ‘wet clay’. In: Heyman J., Leckie F.A. (eds.) Engineering Plasticity. Cambridge University Press, Cambridge; 1968. p. 535-609.
  8. Lade P.V. Elastoplastic stress-strain theory for cohesionless soil with curved yield surfaces. Int. Journal of Solids and Structures. 1977;13:1019-1035.
  9. Prevost J.H. Plasticity theory for soil stress-strain behavior. Journal of the Engineering Mechanics Division. 1978;104(5):1177-1194.
  10. Prevost J.H. Anisotropic undrained stress-strain behavior of clays. Journal of the Geotechnical Engineering Division. 1978;104(8):1075-1090.
  11. Zaretsky Yu. Soil viscoplasticity and design of structures. Balkema, Holland; 1996.
  12. Lyapichev Yu.P. Ocenka dostovernosti matematicheskih modelej gruntov dlya chislennyh raschetov povedeniya gruntovyh plotin [Estimation of reliability of mathematical models of soils for numerical calculations of the behavior of soil dams]. RUDN Journal of Engineering Researches. 2000;(3):110-115. (In Russ.)

Statistics

Views

Abstract - 156

PDF (Russian) - 133

Cited-By


PlumX

Dimensions


Copyright (c) 2020 Lyapichev Y.P.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies