Resistivity piezocone for geo-environmental site characterization: Two case histories from Brazil
Nenhuma Miniatura disponível
Data
2006-12-01
Autores
Giacheti, Heraldo Luiz [UNESP]
Peixoto, Anna Silvia Palcheco [UNESP]
Mondelli, Giulliana
De Mio, Giuliano
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
This paper presents two case histories from Brazil where geophysical and resistivity piezocone tests were carried out to detect contamination. At the first one, the site investigation program was carried out to detect salt-water intrusions in a superficial sedimentary aquifer, at the Paranaguá harbor, in Paraná State. The second case history is a sanitary landfill from Bauru City, São Paulo State. In both sites, superficial geophysical tests were interpreted to detect and delineate the shape of contamination plume, helping to locate the resistivity piezocone tests. It was found that the interpretation of resistivity piezocone tests is straightforward to assess salt-water intrusion in sedimentary sands. For tropical soils, this technique presented some limitations since the groundwater table sometimes is deeper than the layer penetratable to the cone. Moreover, the genesis of those soils affects soil behavior and soil and water sampling is required to support interpretation.
Descrição
Palavras-chave
Aquifers, Characterization, Contamination, Sand, Sediments, Water, Geophysical tests, Piezocone, Sedimentary sands, Geophysics
Como citar
5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress, v. I, p. 453-460.