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Boletín de Ciencias de la Tierra

Print version ISSN 0120-3630

Abstract

JIMENEZ, Johanna Andrea  and  ARISTIZABAL, Edier. A methodological proposal for landslide susceptibility mapping in linear projects: A study case, Medellin - Turbo highway, Section 2. Bol. cienc. tierra [online]. 2018, n.43, pp.14-23. ISSN 0120-3630.  http://dx.doi.org/10.15446/rbct.n43.64683.

Although in the literature there are several methods for the determination landslide susceptibility, very few consider the particularities of linear projects. In the present work, it is proposed the combination of heuristic, statistical and physically based modeling methods to evaluate and mapping landslide susceptibility in linear projects, considering regional and local scales. For the regional zoning, the conditional analysis method using Unique Condition Unit (UCU) is proposed, and for local scale physical models: SHALSTAB for soil slopes and the TOBIA index for rock slopes. The validation of the methodology was performed by the area under the curve (AUC) method. The result indicates an adequate performance, and the obtaining of valuable information prior to the construction of the project, but also during the operation, allowing to define sectors of special attention considering the scale of the project.

Keywords : Landslide; linear projects; Shalstab; heuristic; susceptibility..

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