Strength and Stiffness Parameters of an Unsaturated Tropical Soil

Autor(es)

Fernandes, Jeferson B. ; Rocha, Breno P. ; Rodrigues, Roger A. ; Giacheti, Heraldo L. ; Hoyos, LR ; McCartney, JS ; Houston, SL ; Likos, WJ

• Tipo de documento: Artigo Científico
• Fonte: PANAM UNSATURATED SOILS 2017: SWELL-SHRINK AND TROPICAL SOILS; v. N/A, n. 303, p. 11-pg., 2018-01-01.

Resumo

The interpretation of in-situ tests for site characterization of unsaturated tropical soil sites should consider both the spatial and the seasonal variability caused by the soil suction on the strength and stiffness parameters. This paper presents and discusses the suction-controlled and conventional triaxial with bender elements and in-situ tests data together with water content profiles, as well as soil water retention curves (SWRC) from an unsaturated tropical sandy soil site, to examine the influence of the soil suction on the strength and stiffness soil parameters. The results showed the influence of soil suction on the data interpretation of CPT and DMT to define strength and stiffness parameters for the top layer. This paper point out the importance of considering the seasonal variability caused by suction on the characterization of the study site. (AU)

• Processo FAPESP: 10/50650-3 - Modernização dos laboratórios dos cursos de pós-graduação em engenharias da UNESP de Bauru
• Beneficiário: Heraldo Luiz Giacheti
• Modalidade de apoio: Auxílio à Pesquisa - Regular