Zonificación de la amenaza por movimientos en masa disparados por lluvias en el barrio San Luis de Miravalle, parroquia la Ferroviaria, suroriente del distrito metropolitano de Quito.

Abstract

The present project corresponds to a research study developed in the San Luis de Miravalle neighborhood, located southeast of the Metropolitan District of Quito (DMQ), in which an analysis of slope stability was carried out, considering rain as a triggering factor. The safety factor obtained in conditions without saturation (with absence of rain) and with saturation (presence of rain), allowed the elaboration of two zoning maps on the threat to mass movements triggered by rains, which were calibrated with the map of the inventory of mass movements of past events that was produced for the study area. These maps are presented at a scale of 1:6500 and were prepared by applying the method of Numerical Models of Infiltration and using Geographic Information System (GIS) software. The Infiltration Numerical Models method is based on a slope stability analysis from a previous model that simulates the pore pressure in the stratum due to the infiltration caused by a rain event. This method was used in the modeling of fifty slopes both in conditions without saturation and with saturation, in the Slide 6.0 software, with a total of one hundred modeled runs, using the Steady Stade FDA tool. These maps are a tool that will contribute to decision-making for better territorial control and risk management in the neighborhood.