Estudio geomecánico aplicando fotogrametría para la determinación de la calidad del macizo rocoso en las canteras uruzca, cerro Guayabal, cantón Montecristi, provincia de Manabí, Ecuador.
Fecha
2020-10
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Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
Se realizó un estudio cuyo propósito fue determinar la calidad del macizo rocoso y diseñar el Modelo Digital de Elevación (MDE) de los afloramientos del cerro Guayabal, aplicando estaciones geomecánicas (EGM) y sobrevuelos con dron en tres concesiones mineras que se encuentran dentro del área de estudio ejecutando un total de 4 taludes y 3 sobrevuelos.
Para determinar los parámetros de la clasificación geomecánica de Bieniawski o RMR (Rock Mass Rating), se utilizaron mapas base e instrumental geológico y un dron Mavic Pro para tomar las fotografías que sirvieron para generar la nube de puntos para elaborar el diseño de MDE.
El resultado del estudio evidenció que existe una relación del modelo MDE y la calidad del macizo rocoso, mostrando que la sección sur oeste del cerro Guayabal es de mala calidad a diferencia del resto del cerro que es de Buena calidad, además su rápido cambio geomorfológico es producto de la explotación constante. Por lo tanto, se concluye que la utilización de EGM y fotogrametría para determinar la calidad del macizo rocoso brinda un criterio más global de los afloramientos del cerro Guayabal.
A study was carried out to determine the quality of the rock mass and to design the Digital Elevation Model (DEM) of the outcrops of Guayabal Hill, applying geomechanical stations (GMS) and drone overflights in three mining concessions within the study area, executing a total of 4 slopes and 3 overflights. To determine the parameters of the Bieniawski geomechanical classification or RMR (Rock Mass Rating), base maps and geological instruments were used and a Mavic Pro drone was used to take the photographs that served to generate the point cloud to elaborate the DEM design. The result of the study showed that there is a relationship between the DEM model and the quality of the rock mass, showing that the southwestern section of Guayabal Hill is of poor quality as opposed to the rest of the hill, which is of good quality. In addition, its rapid geomorphological change is a product of constant exploitation. Therefore, it is concluded that the use of EGM and photogrammetry to determine the quality of the rocky mass provides a more global criterion of the outcrops of Guayabal Hill.
A study was carried out to determine the quality of the rock mass and to design the Digital Elevation Model (DEM) of the outcrops of Guayabal Hill, applying geomechanical stations (GMS) and drone overflights in three mining concessions within the study area, executing a total of 4 slopes and 3 overflights. To determine the parameters of the Bieniawski geomechanical classification or RMR (Rock Mass Rating), base maps and geological instruments were used and a Mavic Pro drone was used to take the photographs that served to generate the point cloud to elaborate the DEM design. The result of the study showed that there is a relationship between the DEM model and the quality of the rock mass, showing that the southwestern section of Guayabal Hill is of poor quality as opposed to the rest of the hill, which is of good quality. In addition, its rapid geomorphological change is a product of constant exploitation. Therefore, it is concluded that the use of EGM and photogrammetry to determine the quality of the rocky mass provides a more global criterion of the outcrops of Guayabal Hill.
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MODELO DE ELEVACIÓN (MDE), FOTOGRAMETRÍA, ESTACIONES GEOMECÁNICA (EGM)