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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 81
PROCEEDINGS OF THE TENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: B.H.V. Topping
Paper 257
Numerical Studies of 3D Passive Earth Pressures Induced by the Translation of a Rigid Rough Retaining Wall S. Benmebarek, T. Khelifa and N. Benmebarek
Civil Engineering Laboratory, Biskra University, Algeria Full Bibliographic Reference for this paper
S. Benmebarek, T. Khelifa, N. Benmebarek, "Numerical Studies of 3D Passive Earth Pressures Induced by the Translation of a Rigid Rough Retaining Wall", in B.H.V. Topping, (Editor), "Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 257, 2005. doi:10.4203/ccp.81.257
Keywords: numerical modelling, 3D earth pressure, soil, wall, interaction, failure, behaviour.
Summary
Passive earth pressures play an important role in soil-structure interaction. The 2D
passive earth pressures problem has been widely treated in the literature using
different approaches (limit equilibrium, limit analysis, slip line, numerical
computation), however, the 3D passive earth pressure has been received less
attention.
In this paper, the 3D effect of the passive earth pressure problem is investigated
using the explicit finite difference code, Fast Lagrangian Analyses of Continua
(FLAC
To investigate how the passive earth pressure coefficients are affected by the wall
breadth, five values of the angle of internal friction
Displacement vectors and the distribution of maximum shear strain rates at the
end of the run are presented respectively in figures for
The computed values of passive earth pressure coefficients
It can be observed that the computation results are close to those of Soubra and Regenass [3], when the angle of friction is weak. However, the discrepancy increases with the increase of the soil friction angle and the decrease of wall breadth. This comparison shows that these authors greatly overestimate the 3D passive earth pressure coefficients for practical values. In the case of wall breadth / penetration depth = 10, the present computation results of the 3D earth pressure coefficients for associative material are similar to the values in 2D proposed by Caquot and Kérisel [4]. References
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