Site characterization of a tropical soil by in situ tests

Autor(es)

Breno Padovezi Rocha ^[1] ; Heraldo Luiz Giacheti ^[2]

Afiliação do(s) autor(es)

^[1] University of São Paulo. Department of Geotechnical Engineering - Brasil

^[2] São Paulo State University. Department of Civil and Environmental Engineering - Brasil

• Tipo de documento: Artigo Científico
• Fonte: DYNA-COLOMBIA; v. 85, n. 206, p. 211-219, 2018-09-00.

Resumo

Abstract This paper compiles site characterization data of an unsaturated tropical soil profile in an experimental research site in Bauru, São Paulo State, Brazil. Several in situ campaigns comprised geophysical borehole tests (cross-hole, down-hole and up-hole together with the SPT), as well as mechanical tests (SPT, CPT and SDMT) have been performed. According to the MCT Classification System for tropical soils, the first 13 m depth is a colluvium with lateritic soil behavior (LA’) over the residual soil with non-lateritic behavior (NA’). The ratio between seismic ( Go ) and mechanical ( qn, N60, ED, KD and MDMT ) parameters was useful to identify the presence of microstructure and to confirm unusual soil behavior for this tropical soil site. CPT and SDMT were efficient for detailed stratigraphic logging, however, the estimative of geotechnical parameters cannot be solely been done base on just conventional correlations defined for sedimentary soil. (AU)

• Processo FAPESP: 14/23767-8 - Interpretação de resultados de ensaio CPT considerando a influência da condição não saturada
• Beneficiário: Renan Craveiro Bezerra
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 11/09031-0 - Análise do comportamento hidro-mecânico de um solo tropical não saturado
• Beneficiário: Roger Augusto Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/17260-0 - Ensaio de dilatômetro sísmico para a investigação de solos tropicais
• Beneficiário: Heraldo Luiz Giacheti
• Modalidade de apoio: Auxílio à Pesquisa - Regular