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Journal of Engineering
Volume 2013, Article ID 183068, 9 pages
http://dx.doi.org/10.1155/2013/183068
Research Article

Countermeasures Assessment of Liquefaction-Induced Lateral Deformation in a Slope Ground System

1Dipartimento Economia e Tecnologia, Università degli Studi della Repubblica di San Marino, Via Salita alla Rocca, 44. San Marino Rep., San Marino
2Dipartimento Ingegneria Meccanica e Civile DIMeC, Università degli Studi di Modena e Reggio Emilia, Via Vignolese 905, Modena, Italy

Received 29 August 2012; Revised 6 December 2012; Accepted 6 December 2012

Academic Editor: Lucian Dascalescu

Copyright © 2013 Davide Forcellini and Angelo Marcello Tarantino. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Liquefaction-induced lateral spreading may result in significant damage and disruption of functionality for structures and Slope Ground System. In this regard, finite-element simulations are increasingly providing a versatile environment in order to assess economical and effective countermeasures. Several systematic bidimensional FEM computations have been conducted to evaluate mitigation strategies under the action of an applied earthquake excitation. The presented study highlights the potential of computations in providing insights for analysis of liquefaction-induced lateral deformations. In the analysis, some specific assumptions are introduced and verified such as a nine-node quadrilateral elements, massive columns of soil with periodic boundary conditions, and a Lysmer-Kuhlemeyer dashpot used to model the finite rigidity of the underlying elastic medium. Moreover, the study aims to systematically explore the effectiveness of densification as a countermeasure and then evaluate the best extension comparing two scenarios.