Fundamentos del comportamiento de micropilotes hincados en suelos limo-arenoso de Córdoba.
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Congreso Argentino de Mecánica de Suelos e Ingeniería Geotécnica.
Abstract
La utilización de micropilotes hincados es una alternativa interesante para resolver
cimentaciones en proyectos de ingeniería de pequeña y mediana envergadura. Incluso en grandes
obras, pueden ser utilizados para estabilizar taludes o como pantalla de sostenimiento en excavaciones
de subsuelos. A los fines de plantear el uso en este tipo de soluciones, es necesario contar con
procedimientos de diseño validados para suelos locales y la tecnología específica con la que los mismos
serán materializados. En este artículo, se plantea una revisión literaria de procedimientos para
determinar capacidad de carga de micropilotes hincados, que contemplen la tecnología constructiva y
las características propias del suelo. Se desarrolla un plan experimental de ensayos de campo sobre
micropilotes a escala real. Se implementan modelos numéricos para la condición de micropilotes
hincados instalados en suelos limosos, limo-arenosos y arenosos. Se desarrollan formulaciones
dinámicas con el propósito de estimar la capacidad de carga a partir de los resultados de ensayos de
penetración en campo.
The use of driven micropiles is an interesting alternative to solve foundations in engineering projects of small and medium scale. Even in large works, they can be used to stabilize slopes or as a support screen in underground excavations. In order to propose the use in this type of solutions, it is necessary to have validated design procedures for local soils and the specific technology with which they will be materialized. In this paper, a literary review of procedures to determine the carrying capacity of driven micropiles, contemplating the construction technology and the characteristics of the soil is proposed. An experimental plan of field tests on micropiles in real scale is developed. Numerical models are implemented for the condition of driven micropiles installed in silty, sandy loamy and sandy soils. Dynamic formulations are developed for the purpose of estimating the load capacity from the results of field penetration tests.
The use of driven micropiles is an interesting alternative to solve foundations in engineering projects of small and medium scale. Even in large works, they can be used to stabilize slopes or as a support screen in underground excavations. In order to propose the use in this type of solutions, it is necessary to have validated design procedures for local soils and the specific technology with which they will be materialized. In this paper, a literary review of procedures to determine the carrying capacity of driven micropiles, contemplating the construction technology and the characteristics of the soil is proposed. An experimental plan of field tests on micropiles in real scale is developed. Numerical models are implemented for the condition of driven micropiles installed in silty, sandy loamy and sandy soils. Dynamic formulations are developed for the purpose of estimating the load capacity from the results of field penetration tests.
Description
Keywords
Micropilotes, Hincado, Inyectado, Suelos limo-arenoso
Citation
XXIV Congreso Argentino de Mecánica de Suelos e Ingeniería Geotécnica. Salta, Argentina. 17-18-19 de Octubre de 2018.
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