Determinación de los factores que explican la distribución espacial de daños por deformaciones del terreno en la zona de colinas de Challuabamba

Abstract

This study focuses on determining the mapping of susceptibility to landslide and the expansive potential of soils in the area of "Colinas de Challuabamba" urbanization, located at the northeast of the city of Cuenca, in the urban extension called "Challuabamba".

The landslide susceptibility map was prepared using the methodology of Varhson-Mora-Mora (2002). As a result of the mapping, it was obtained that the area of "very high" susceptibility occupies an area of 4,13 ha (9,9%); the area of "high" susceptibility represents 11,00 ha (26,4%); "moderate" susceptibility 14,78 ha (35,6%); "low" 10,30 ha (24,8%) and "very low" 1,37 ha (3,3%). In general, landslides are located mostly (86,7%) over classified as "high" and "very high" susceptibility areas.

Furthermore, the map of expansive potential of clays wasobtained by superimposing the map of the spatial distribution of montmorillonite with the map of susceptibility to soil moisture, applying for each calculation method of Marin-Nieto (1991) and classification proposed by Patrone and Prefumo (2005), respectively. The interpolation method applied was the Inverse Distance Weighted(IDW).The result revealed that the damage observed on the roads and paths of the "Colinas de Challuabamba" urbanization are caused by the presence of expansive mineral montmorillonite (71,4%) and soil moisture in the active layer classified as " moderate" (74,3%).