Use of modified CAM-CLAY model in cohesive soils of the Sabana de Bogotá ; Utilización del modelo CAM-CLAY modificado en suelos cohesivos de la Sabana de Bogotá
An experimental research program was carried out on typical clays of The Sabana de Bogotá. Basic tests of characterization, one-dimensional consolidation and not drained consolidated triaxial compression were executed. The main parameters of strength and deformability in agreement with critical state theory were obtained. These parameters allow to conform an elasto-plastic model called Modified Cam-Clay (MCC) to reproduce the resulting strains for each applied stress path. The plots produced by the model were compared with experimental results, which allowed to identify which conditions the mo... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2004 |
Verlag/Hrsg.: |
Universidad Militar Nueva Granada
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Schlagwörter: | elastoplasticity / CAM-CLAY / constitutive models / elastoplasticidad / modelos constitutivos |
Sprache: | Spanish |
Permalink: | https://search.fid-benelux.de/Record/base-27652700 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | http://revistas.unimilitar.edu.co/index.php/rcin/article/view/1265 |
An experimental research program was carried out on typical clays of The Sabana de Bogotá. Basic tests of characterization, one-dimensional consolidation and not drained consolidated triaxial compression were executed. The main parameters of strength and deformability in agreement with critical state theory were obtained. These parameters allow to conform an elasto-plastic model called Modified Cam-Clay (MCC) to reproduce the resulting strains for each applied stress path. The plots produced by the model were compared with experimental results, which allowed to identify which conditions the model simulates best the behavior of soil and on which variables is due to work in order to obtain a complete constitutive model. ; Con el fin de estudiar el comportamiento mecánico de arcillas típicas de la Sabana de Bogotá, se llevó a cabo un programa de investigación experimental en laboratorio que incluyó ensayos básicos de caracterización, consolidación unidimensional y compresión triaxial consolidada no drenada. De los resultados se obtuvieron los principales parámetros de resistencia y deformabilidad de acuerdo con la teoría del estado crítico. Estos parámetros permiten conformar un modelo de comportamiento bajo el régimen elastoplástico. Se utilizó el modelo Cam-Clay Modificado (CCM) para reproducir las deformaciones resultantes para cada trayectoria de esfuerzos aplicada. Se compararon las curvas producidas por el modelo con respecto a los resultados experimentales, lo que permitió identificar bajo cuales condiciones el modelo simula mejor el comportamiento del suelo y sobre qué variables se debe trabajar para obtener un modelo constitutivo completo.