Análisis de estabilidad de taludes de una extensión de 260 metros en la vía Papallacta Baeza, sector Cuyuja.

Abstract

The study slope is in the Papallacta-Baeza Cuyuja sector, belonging to the Quijos canton, Napo province, this area corresponds to a very important vehicular artery of exchange between the Sierra and the Ecuadorian Amazon. Geologically, the study area is in the Salado terrain that is part of the Cordillera Real. The SPT soundings and laboratory tests allowed the physical and mechanical characterization of the different types of soil found within the study slope. Within the SUCS classification, CL (inorganic sandy silty clay with low plasticity) and SM (silty sand with gravel) were differentiated, internally the slope is composed of a micaceous shale. The safety factor modeling was carried out in the GEO5 program, taking as a reference the simplified Bishop method, the minimum safety factor that the slope should hace in this study is 1.5 to be considered a stable slope. In the conditions in which the sampling was carried out (high rainy season), the northern zone of the slope corresponding to profiles 1,2,3 is in an imminent failure state, the safety factors in this zone are less than 1. As a stabilization measure, the construction of berms was proposed in the profiles where the safety factor was less than 1.5; quite satisfactory results were obtained, causing the safety factor to rise considerably and consequently achieving the stability of the slope completely.