Zonificación del peligro por subsidencia en el Barrio San José de Chilibulo, Sur del Distrito Metropolitano de Quito

Abstract

This project corresponds to a technical study carried out in the San José de Chilibulo neighborhood in the south of the Metropolitan District of Quito, which aims to zoning the subsidence through the geological mapping of the Quaternary units combined with the subsurface studies, to build a conceptual model that explains the dynamics of the area. In the sector, the filling of streams and the subsequent settlements on these, combined with the presence of several underground galleries for the extraction of material for construction, have generated a problem of subsidence in the area. The subsidence susceptibility zoning in the San José neighborhood of Chilibulo was carried out through the analysis of the existing information, analysis of the subsurface studies carried out, geological mapping of the quaternary units and the correlation of all the information using the tool QGIS. It was concluded that in the study area the high susceptibility represents 9.91% (2.28 Ha) of the total area of the study area and is located in the lower part of Quebrada Los Chochos, the average susceptibility represents 29.22% (6.72 Ha), is located on the southern filling areas, in the Quebrada Guanajucho and the low susceptibility represents 60.87% (14 Ha), the low susceptibility is found in the central part of the study area.