Desecación y deformación de suelos arcillosos

Conference item


Levatti, HU, Ledesma, A and Prat, P (2009). Desecación y deformación de suelos arcillosos. Congreso de Métodos Numéricos en Ingeniería 2009. Barcelona, Spain 29 Jun - 02 Jul 2009 London South Bank University.
AuthorsLevatti, HU, Ledesma, A and Prat, P
Abstract

Los procesos de desecación en arcillas involucran la pérdida gradual de humedad inducida por la evaporación del agua contenida desde la superficie del suelo. Estos fenómenos son muy complejos debido a la interacción que tienen lugar entre las variables mecánicas e hidráulicas. El proceso de desecación gobernado principalmente por propiedades altamente no lineales, influyen sobre el comportamiento mecánico del suelo haciendo que este se contraiga, se deforme formando rizos o eventualmente se agriete dependiendo de las condiciones de contorno, del grado de heterogeneidad en su interior y de la relación de dimensiones de la porción de suelo sometida a dicho proceso. A pesar de que los cambios de temperatura pueden influir fuertemente en el desarrollo de estos fenómenos, planteamos aquí solo el problema hidromecánico y se establece por hipótesis que se estudiará solo el caso isotermo. En este artículo se presenta una formulación matemática hidromecánica que intenta modelar el complejo fenómeno de desecación. El modelo ha sido implementado en el entorno Matlab y se exponen algunos resultados preliminares de dicho código que capturan el típico rizado cóncavo o convexo que experimentan delgadas muestras de suelos al secarse, así como también distintos resultados obtenidos para diferentes condiciones de contorno.

Year2009
PublisherLondon South Bank University
Accepted author manuscript
License
CC BY 4.0
Publication dates
Print29 Jun 2009
Publication process dates
Deposited30 Nov 2017
Accepted01 Apr 2009
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https://openresearch.lsbu.ac.uk/item/87q4x

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