Application of MCT Methodology to Determine Soil Erodibility in Road Cutting Slopes in Quadrilátero Ferrífero Region

Bruno de Oliveira Costa Couto, Romero César Gomes

Abstract


Erodibility is defined as soil susceptibility to erosive processes. Although several studies have been developed in agronomic area, there are still gaps regarding road slopes, mainly due to the different soil structure conditions. This present work addresses the erodibility in road cut slopes located in the Quadrilátero Ferrífero – MG, with presence of horizons of antagonistic behavior in relation to erosion. The erodibility evaluation was made by geotechnical characterization, Compacted Miniature for Tropical Soils methodology (MCT), infiltrability and modified immersion mass loss tests. The results of MCT methodology demonstrate distinctly behavior between resistant and erodible soils, confirming that lateritic conditions increase soil resistance against water erosion. The MCT erodibility criterion checked that erodible soils are more unstable when in contact with water, showing better performance when compared to conventional MCT test. Therefore, more weathered or lateritic soils are more resistant to erosive processes, while less evolved soils, such as C horizons, are prone to erosion, requiring control measures to prevent their direct exposure to weathering.

Keywords


Erodibility; MCT Methodology; Cutting Slopes; Quadrilátero Ferrífero

Full Text:

PDF


DOI: https://doi.org/10.11137/2020_1_191_198

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Indexers and Bibliographic DatabasesFollow us
SCImago Journal & Country Rank
ISSN
ROAD
Clarivate
Diadorim
DOAJ
DRJI
GeoRef
Google Scholar
Latindex
REDIB
Oasisbr
Twitter
Instagram
Facebook
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution-NonCommercial 4.0 International Public License (CC BY-NC 4.0).