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Analysis and diagnosis of the instability affecting "La Bonita" area, Amagá, Antioquia, Colombia

Álvarez Gutiérrez, Yennifer Yennifer and Montoya Cañola, Sandra Marcela and Rendón Giraldo, Diego Armando and Caballero Acosta, José Humberto (2015) Analysis and diagnosis of the instability affecting "La Bonita" area, Amagá, Antioquia, Colombia. Boletín de Ciencias de la Tierra (37). pp. 35-44. ISSN 2357-3740

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Resumen

In the "La Bonita" sector (Amagá, Antioquia), between km 3+200 and km 3+500 of the Camilo C. Restrepo (Amagá) – El Cinco (Fredonia) road, which is above the rocks of the upper member of the Amagá formation (conformed mainly by interbedded claystones, sandstones and thin beds of coal), occur many instability processes that seriously affect the infrastructure of the area, and could be the result of the variations of mechanical and mineralogical properties of the claystones by effect of humidity fluctuations in the study area. According to the results obtained after multiple field trips, mapping of morphodynamic processes, subsoil explorations and laboratory tests, was determined that these materials, even as a rock, given their particular characteristics, have the ability to expand (changing their volume by about 10%) upon contact with water, generating expansion pressures up to 700kPa on the overlying materials, leading to the development of multiple slow morphodynamic processes (whose rate is related to winter seasons) that destabilize the ground.

Tipo de documento:Artículo - Article
Palabras clave:Amagá, Antioquia, Colombia, claystones, pressure to avoid expansion, expansive clays, morphodynamic processes, geotechnical characterization, X-ray diffraction, slope stability.
Temática:5 Ciencias naturales y matemáticas / Science > 55 Ciencias de la tierra / Earth sciences & geology
Unidad administrativa:Revistas electrónicas UN > Boletín Ciencias de la Tierra
Código ID:60675
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :28 Noviembre 2017 19:37
Ultima modificación:28 Noviembre 2017 19:37
Ultima modificación:28 Noviembre 2017 19:37
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