Title: A new numerical approach to the design of foundation piles in laterally spreading liquefied soils

Authors: Sami Montassar, Patrick De Buhan, Alain Pecker

Addresses: Laboratoire de Genie civil (LGC), Ecole Nationale d'Ingenieurs de Tunis (ENIT), BP 37 Le belvedere, 1002 Tunis, Tunisie. ' Universite Paris-Est, UR Navier, ENPC, 6 et 8 avenue B. Pascal, 77455-Marne-la-Vallee, cedex 02, France. ' Geodynamique et Structure (GDS), 157, rue des Blains, 92220 Bagneux, France

Abstract: In this contribution, a general numerical scheme is proposed aimed at simulating the lateral spreading of a liquefied soil mass, modelled as a viscoplastic Bingham medium, along with evaluating its impact on neighbouring structures by calculating the lateral loading exerted by the liquefied ground. An illustrative application of this approach implemented in a finite element code using the decomposition-coordination method by augmented Lagrangian is also presented.

Keywords: post-liquefaction; lateral spreading; Bingham viscoplastic modelling; finite element method; FEM; augmented Lagrangian; foundation piles; liquefied soils; pile design; lateral loading.

DOI: 10.1504/IJCAT.2009.022702

International Journal of Computer Applications in Technology, 2009 Vol.34 No.1, pp.52 - 59

Published online: 25 Jan 2009 *

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