Calibración de modelo hidromecánico en mezclas de loess y bentonita
Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Tecnología y Ciencia - UTN
Abstract
Los suelos loessicos de la Ciudad de Córdoba, constituyen uno de los materiales más
importantes empleados en obras de ingeniería especialmente en obras viales. Se han realizado
importantes estudios investigando sus propiedades geotécnicas. En este trabajo, se realizaron
ensayos de compresión no confinada y ensayos de infiltración mediante el empleo de un
permeámetro a pared flexible. Se realizaron mezclas de suelo loessico con adición de bentonita
en distintos porcentajes. Se evaluó el contenido de humedad, peso unitario seco y contenido de
bentonita en las muestras remoldeadas. Se compararon los resultados obtenidos
experimentalmente con los modelos propuestos mediante formulaciones matemáticas.
Los resultados muestran que es posible lograr una aproximación entre el comportamiento
hidromecánico teórico obtenido mediante la modelación y calibración de funciones racionales
respecto del comportamiento empírico obtenido como resultado de ensayos en mezclas de suelo
loessico estabilizadas con bentonita.
Córdoba city loessic soils are one of the most important materials used in engineering works especially in road works. There have been done important studies investigating its geotechnical properties. In this paper, it has been done unconfined compressive tests and permeation tests using a flexible wall permeameter. Mixtures were done with loessic soil and addition of bentonite in different percentages. All of them were remoulded samples. Water content, dry unit weight and bentonite content were studied in each sample. Experimental results were compared with the proposed models by using mathematical formulations. The results show that it is possible to achieve an approximation between a theorical hydromechanical behaviour obtained by modelling and calibration of rational functions and an empirical hydromechanical behaviour obtained as test results in loessic soil mixture with bentonite.
Córdoba city loessic soils are one of the most important materials used in engineering works especially in road works. There have been done important studies investigating its geotechnical properties. In this paper, it has been done unconfined compressive tests and permeation tests using a flexible wall permeameter. Mixtures were done with loessic soil and addition of bentonite in different percentages. All of them were remoulded samples. Water content, dry unit weight and bentonite content were studied in each sample. Experimental results were compared with the proposed models by using mathematical formulations. The results show that it is possible to achieve an approximation between a theorical hydromechanical behaviour obtained by modelling and calibration of rational functions and an empirical hydromechanical behaviour obtained as test results in loessic soil mixture with bentonite.
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Keywords
Bentonita, Suelo Loessico, Permeámetro a Pared Flexible, Compresión No Confinada, Modelos de Comportamiento, Bentonite, Loessic soil, Flexible wall permeameter, Unconfined Compression, Behavioural models
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