Evaluation of Electrical Resistivity in a Tropical Sandy Soil Compacted
Nenhuma Miniatura disponível
Data
2014
Autores
Yamasaki, Márcia Tiemi
Lodi, Paulo César
Peixoto, Anna Silvia Palcheco [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The utilization of electrical resistivity is a technique that leads to improve the sampling of environmental works. The bulk resistivity considers the three phases of soil mechanics theory and their intervening factors such as porosity, saturation degree, moisture content and temperature. The current study evaluated the electrical resistivity of a compacted tropical soil (sedimentary sand), varying the salinity concentration in the percolation fluid. The tests results showed the resistivity values tend to be constant in the wet density curve of compaction test and when the degree of saturation is above 80%. It was also noted that the resistivity-suction curve has the same behavior. Considering the importance of the analyses of unsaturated soils has to tropical environmental and the time spent in the soil-water retention curve, the use of resistivity could become a technique to evaluate studies with unsaturated soils. Thus, a new electrical resistivity equation was done for both the moisture content as for the soil suction measurement.
Descrição
Palavras-chave
Soil electrical resistivity, Unsaturated soil, Salinity fluid, Permeability Compaction
Como citar
The Electronic Journal of Geotechnical Engineering, v. 19C, p. 629-644, 2014.