Cluster analysis for slope geotechnical prioritization of intervention for the Estrada de Ferro Vitória-Minas.
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2017
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Resumo
This article proposes the geotechnical prioritization of intervention of slopes
with landslide scars for the Estrada de Ferro Vitória-Minas by cluster analysis and
also the proposition of a relationship between area and volume in landslide scars.
Cluster definition helps the decision-making associated to containment measures,
mapping and study of landslides for the Estrada de Ferro Vitória-Minas. The database
is composed of the variables: slope’s height, inclination, scar area and scar
volume. The distance measure used was Gower’s index, with Ward’s methods to
build the clusters. Eight characteristic groups were identified. It was possible to identify
stretches that need attention in relation to the propensity of landslides, such as
Group 7, stretches 362+600, 093+xxxE and 419+000. Group 7 presented high values
for the scarred area and volume, such as maximum area 9.75 x 104 m² and minimum
area 7.49 x 104 m², and maximum volume 9.20 x 105 m³ and minimum volume
4.08 x105 m³. Group 7 presented high ranges for slope height and inclination. The
set of results about Group 7 can be interpreted as stretches with a predisposition for
landslides. In relation to intervention measures, Group 7 presents the sections with
priority. The relationship between area and volume of landslide scars obtained by
the research was compared with the relationships established in literature.
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Geotechnical prioritization of intervention of railway slopes, Cluster analysis, Estrada de Ferro Vitória-Minas, Landslide scars
Citação
SILVA, D. de F. S. da et al. Cluster analysis for slope geotechnical prioritization of intervention for the Estrada de Ferro Vitória-Minas. REM - International Engineering Journal, v. 71, p. 167-173. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000200167&lng=en&tlng=en>. Acesso em: 25 abr. 2017.