Zonificación de amenaza por movimientos en masa en el suelo rural del municipio de Cajicá, Cundinamarca

Abstract

This work was carried out within the framework of the contract between ARCO and Cajicá, in the development of the POT of the municipality and its corresponding hazard zoning studies for the incorporation of these in the management plan. This emphasizes the importance of identifying the most at-risk places, in order to apply management strategies for these areas that are exposed to hazards and risks, and implement policies that help to avoid different tragedies and preserve the heritage and lives of the people of the municipality. For the calculation of susceptibility due to mass movements, an adjusted conceptual model of the Colombian Geological Service was applied, which applies a weighting model taking into account different variables such as the curvature of the plane, slope, geological units, soil cover, among others; for which different geodatabases were reviewed and debugged. Once the susceptibility is calculated, the temporal probability is also taken into account, which is obtained from daily rainfall thresholds and from the study of the catalog of events that have occurred both in the municipality and in the surrounding areas, in addition to event points that were identified through a multitemporal study of orthophotographs of the rural area of Cajicá. Thus, the calculation of the threat is obtained and the respective zoning is carried out; which is later validated to verify the quality of the study. Finally, the documentation of the development of this project was carried out.