Mapeamento do potencial de instabilização de taludes rodoviários usando SIG e seções geológico-geotécnicas de campo com aplicação na rodovia SP-310 / Mapping of the potential of instabilization of road slopes using Sig and geological-geotecnical sections of field with application in highway SP-310

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The present study developed a methodology for mapping of instability potential of road slopes. It was used, for in such a way, GIS (Geographic Information System) and obtained geologic-geotechnical of detail sections in surface surveys. This methodology was used in a section of Road Washington Luís (SP-310), under two different conditions. First, it was applied to the totality of the studied area the weight of the attributes of declivity percentage, unconsolidated materials, hillsides curvature and slopes direction, obtaining itself the map of potential of instability. In the ADA band (area directly affected of the highway - with 50 m of wide), this methodology gave special emphasis to the sections geologic-geotechnical that had allowed one better understanding of the unconsolidated materials disposal and had been used as criteria for the fill and cut slopes compartimentation, resulting in the map of potential of accident. Final products of this study are map of slope, derive slope, curvature, derive aspect and unconsolidated materials maps that had served as base for the accomplishment of the map subject of this work, the potential of instability and accident map. The main scale adopted for these cartographic documents was 1:10.000.

ASSUNTO(S)

rodovia washington luís sig highway washington luís instability potential of road slopes gis potencial de instabilização de taludes rodoviários

ACESSO AO ARTIGO

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