Construcción de modelos hidrogeológicos en medios fracturados a partir de información escasa
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La hidrogeología en rocas de baja conductividad hidráulica ha sido objeto de atención aproximadamente desde la segunda mitad del siglo XX, por el crecimiento de obras civiles y actividades mineras y sus implicaciones sobre el recurso hídrico. En Colombia, se han venido desarrollando grandes proyectos hidroeléctricos, mineros y viales, ubicados la mayoría de las veces en zonas de rocas duras sobre las cuales se tiene poco o ningún conocimiento hidrogeológico, con el agravante de que su obtención implicaría tiempo y costos económicos considerables. Sin embargo, en los estudios previos de los proyectos se recolecta gran cantidad de información de tipo geotécnico, minero, etc., que podría ser útil para la definición de un modelo hidrogeológico conceptual. En este trabajo se propone una metodología aplicable a la determinación de modelos hidrogeológicos conceptuales en rocas fracturadas, a partir de información recolectada en la etapa de prefactibilidad de proyectos mineros e hidroeléctricos. Se presenta su aplicación a un caso real, en una zona correspondiente a la cordillera central colombiana.
Abstract: Hydrogeology in low permeability rocks has been about attention from the second half of the twentieth century, the growth of civil works and mining, with its implications on water resources. In Colombia, we have been developing large hydroelectric, mining and road projects, located most often in areas of hard rocks over which it has little or no hydrogeological knowledge with the aggravation of their recovery would involve considerable time and financial costs. However, in previous studies of projects wealth of information geotechnical, mining, etc. which could be useful for the definition of a conceptual hydrogeologic model. This work presents a methodology for determining conceptual hydrogeological models in fractured rocks, based on information collected in the pre-feasibility stage of mining and hydroelectric projects in one region locate the central mountains of Colombian región.
Abstract: Hydrogeology in low permeability rocks has been about attention from the second half of the twentieth century, the growth of civil works and mining, with its implications on water resources. In Colombia, we have been developing large hydroelectric, mining and road projects, located most often in areas of hard rocks over which it has little or no hydrogeological knowledge with the aggravation of their recovery would involve considerable time and financial costs. However, in previous studies of projects wealth of information geotechnical, mining, etc. which could be useful for the definition of a conceptual hydrogeologic model. This work presents a methodology for determining conceptual hydrogeological models in fractured rocks, based on information collected in the pre-feasibility stage of mining and hydroelectric projects in one region locate the central mountains of Colombian región.