Comportamiento geotécnico de agregados derivados de rocas lodosas y su uso como material para terraplenes
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Gutiérrez Angulo, Christian Camilo
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Trabajo de grado - Maestría
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EspañolFecha de publicación
2014
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La utilización de materiales derivados de rocas lodosas en la construcción de terraplenes suele ser rechazada, debido a la incertidumbre acerca de su comportamiento complejo por las deformaciones a largo plazo, causadas por las características físicas y químicas del material, por su facilidad de degradarse, sus cambios volumétricos y por las posibles expansiones o colapsos de la estructura del suelo. En este trabajo se incluye los resultados de un estudio experimental y algunas recomendaciones para su posibilidad de utilización en la construcción de terraplenes. La etapa experimental se realizó con material de la Formación geológica Simijaca de una cantera del municipio de San Francisco del departamento de Cundinamarca, Colombia; con cada una de las muestras se realizaron pruebas de compactación, medición de velocidades de onda y %CBR; se estudió el comportamiento de módulos de elasticidad, cambios volumétricos y la rotura de partículas mediante la implementación de ciclos de humedecimiento y secado.
Abstract. The use of materials derived from mudrocks on the embankment construction has been often rejected because of uncertainty about its complex behavior during long term deformations, which have been caused by the physical and chemical characteristics of the material, the easy way of degrade, its volumetric changes and the possible expansion or collapse from the soil structure. This paper includes the results of an experimental study and some recommendations for possible use during embankment construction. The pilot phase was conducted with material from Simijaca Geological Formation taken from a quarry in the municipality of San Francisco, Cundinamarca Department, Colombia; with each of the samples, compaction test, wave velocity measurement and %CBR were performed; besides, the elastic modules behavior, volumetric changes and the particle breakage were studied all by implementing wetting and drying cycles.
Abstract. The use of materials derived from mudrocks on the embankment construction has been often rejected because of uncertainty about its complex behavior during long term deformations, which have been caused by the physical and chemical characteristics of the material, the easy way of degrade, its volumetric changes and the possible expansion or collapse from the soil structure. This paper includes the results of an experimental study and some recommendations for possible use during embankment construction. The pilot phase was conducted with material from Simijaca Geological Formation taken from a quarry in the municipality of San Francisco, Cundinamarca Department, Colombia; with each of the samples, compaction test, wave velocity measurement and %CBR were performed; besides, the elastic modules behavior, volumetric changes and the particle breakage were studied all by implementing wetting and drying cycles.