Evaluación de la estabilidad de taludes en San Antonio de Pichincha, mediante la caracterización de macizos rocosos, para el análisis de la susceptibilidad por fenómenos de remoción en masa

Abstract

This project was executed in the area of San Antonio de Pichincha - Perucho, 12 km north of the city of Quito. The geological environment of the area is characterized by rocky massifs, pyroclastic flows, lagoon deposits, colluvial deposits and terraces. The different rock massifs were evaluated through physical-mechanical parameters, by Bieniawski in 1973, which allowed to analyze the stature of the natural or artificial slopes. The rock quality index (RQD) is one of the geometric parameters that were obtained in 1963 by Deere, which allowed to characterize the rock masses through the drill core, but Priest and Hudson in 1976 designed a surface method, where the relationship between the number of fissures on a specific space determine the value of this index. The current study proposed adjusting to the RQD index by means of alteration minerals that is considered a very important factor for the quality and speed of the slope. Through the identification of alteration minerals that adjust the RQD index that offers new quality and speed data, allowing the creation of a geotechnical map and a susceptibility map.