Design Methodology through Risk Assessment of Massive Water Retaining Structures

In the present paper the results of a numerical study are presented, numerical models were developed to simulate the behaviour of vertical massive dikes. The proposed models were developed according to the geometry, boundary conditions, loading conditions and initial conditions of a physical model taken as reference. The results obtained were compared to the experimental data. As far as the overall behaviour, the displacements and the failure mechanisms of the dikes is concerned, the numerical results were in good agreement with the experimental results, which clearly indicates a good quality of numerical modelling. The validated numerical models were used in a parametric study were the displacements and failure mechanisms were fully investigated. Out of the results obtained, some conclusions and recommendations related to the design of massive dikes are proposed.


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References:
[1] Heins, W.F. et de Leeuw, E. H. « Large Scale Cyclic Loading
Tests»,Comptes rendus du neuvième congrès international de
mécanique des sols et des travaux de fondations, Tokyo, Vol. 1-- 1977.
[2] Brinkgereve R.B.J. et Vermeer P.A. : « PLACXIS Version 8, material
mode manual » DELFT University of Tecnology &PLAXIS BV, Paysbas,
2003.
[3] Duncan, J. M. et Chang, C. Y. (1970) , " Non-linear Analysis of stress
and strain in soil." ASCE J. of the soil Mech. And Found. Div. Volume
96, 1629-1653.
[4] Rowe, P.W. (1962). "The stress-dilatancy relation for static equilibrium
of an assembly of particles in contact". Proceedings of the Royal
Society . A269, 500-527.
[5] Achmus M., et Rouili A. : «Investigation on the earth pressure loading
of L-shaped retaining walls»Untersuchung zur Erdrruckbeanspruchung
von Winkelstützwänden". Ernst und Sohn- Bautechnik Journal,
Germany, Volume 81, Number 12. pp. 942-948. 2004.
[6] Schweiger, H. F. (1998) "Results from two geotechnical benchmark
problems. Application of numerical methods to geotechnical problems."
Proceedings of the Fourth European Conference on Numerical Methods
in Geotechnical Engineering, A. Cividini. Editor, Stuttgart, 645-654.
[7] Magnan, J., P., : « eurocode 7, calcul géotechnique » Technique DE
L-INGENIEUR, Paris, 2000.