MODELO SHALSTAB APLICADO EM BACIAS HIDROGRÁFICAS: ANÁLISES EM DIFERENTES CONDIÇÕES DE OCUPAÇÃO URBANA

SHALSTAB model applied in watersheds: analyses in different urban occupation conditions

Abstract

From the earliest periods of human history, Men seek to cluster their occupation in areas close to large water bodies, however, such a historical / cultural heritage, results in occupations that can expose people to the natural movements of relief contained in the coverage of the Basins Hydrographic, therefore, it is of extreme importance to map the most susceptible places to landslides to order the urban occupation and / or size the risks associated with each occupation. For this there are several tools that allow to recognize the susceptibility to landslides, however each one presents advantages and limitations of application. The present work aims to compare the mapping of areas susceptible to translational landslides through the SHALSTAB model in areas with low and high urban occupation. The comparison was made through a case study of the mapping of areas susceptible to translational landslides in the Rio Cachoeira and Rio de la Plata Hydrographic Basins, located in the city of Joinville / SC. The results indicated that the relief and urban occupation are aspects of great importance attributed to the SHALSTAB model for landslides and that the areas with high urbanization did not present a good performance in the prediction of landslide events, however, the SHALSTAB model proved useful in the orientation and direction of the areas of urban expansion.