Sand Liquefaction
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Numerical investigation of diffuse instability in sandy soil using discrete element method under proportional strain path loading
Abstract The Loose sandy soil can manifest static liquefaction phenomenon under undrained condition, in which the onset of instability is within the failure line, and there is no obvious shear band. This type of failure mode, very different from localized instability that occurs in dense sand, is called the diffuse instability. In this paper, a series of pro
Lat. Am. j. solids struct.. Publicado em: 29/11/2018
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2. Modification of a Constitutive Model in the Framework of a Multilaminate Method for Post-Liquefaction Sand
Abstract The estimation of the value and direction of post-liquefaction deformations is one of the most challenging issues in the modelling of liquefaction soil, due to the inherent and induced anisotropy. It is very important in the science of soil-constitutive models to present a simple and comprehensive model for the prediction of fabric anisotropy effect
Lat. Am. j. solids struct.. Publicado em: 2017-08
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3. A Simple One-Scale Constitutive Model for Static Liquefaction of Sand-Silt Mixtures
Abstract Instability of liquefaction is one of the major reasons which results in the failure of earth structure such as dam. The present study focuses on the simulation of static liquefaction behavior for granular materials such as sand and sand-silt mixtures. Based on micromechanical analysis of inter-particle behavior, a simple one-scale model is proposed
Lat. Am. j. solids struct.. Publicado em: 2016-11
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4. STUDY OF CONSTITUTIVE MODELS TO PREDICT SOIL LIQUEFACTION UNDER MONOTONIC LOADING / ESTUDO DE MODELOS CONSTITUTIVOS PARA PREVISÃO DA LIQUEFAÇÃO EM SOLOS SOB CARREGAMENTO MONOTÔNICO
Historicamente é sabido que muitas das rupturas ocorridas em barragens ou taludes naturais podem ser atribuídas ao fenômeno da liquefação de solos arenosos, causada pela ação de carregamentos dinâmicos gerados por explosão ou, mais freqüentemente, por terremotos. Quando liquefação ocorre, um súbito aumento da poropressão faz decrescer a resist�
Publicado em: 2004