Análisis de Escenarios de Inestabilidad Geológicos con Enfoque Multiamenaza, Teniendo en Cuenta la Susceptibilidad de los Elementos de Infraestructura Expuestos a Partir de una Valorización Cualitativa para el Tramo Vial Ubicado en el PR 80+000 al PR 87+000 de la Transversal de Cusiana.

Abstract

The objective of the research carried out was to comprehensively evaluate the multi-hazard scenarios in the road section between PR 80+000 and PR 87+000 of the Cusiana intersection, considering the susceptibility of the exposed infrastructure elements. The analysis proposes the zoning of the areas most susceptible to mass movement within the Cusiana transversal, a road that connects the departments of Boyacá and Casanare, between the municipalities of Sogamoso and Aguazul. Through a methodology that is based on the combination and adaptation of different methods with a qualitative and quantitative approach, relying on the databases of each of the entities in charge of managing basic scientific information, together with the ArcGIS Geographic Information System.

According to the field visit, in which a tour was made from PR0+000 to PR116+000 of the Cusiana transversal, along with several drone flights and the analysis of the photointerpretation of aerial photographs taken by the IGAC. . It was identified and delimited that the study area with the greatest number of mass movements is located in the section from PR 80+000 to PR87+000.

In accordance with the above, the implementation and adaptation of the methodological guides for the zoning of threats due to Colombian mass movements (SGC) and the methodology of Mora & Vahrson, (1992). obtaining the detailed zoning of the threat due to mass movements.