Avaliação da resistência lateral em estacas escavadas com trado submetidas à tração

• Autor(a) principal: Bessa, Adevilson Oliveira de
• Data de Publicação: 2005
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3809
• topic: Estacas de concreto; Resistência lateral a tração; Prova de carga; Concrete piles; Lateral strength to traction; Compression tests; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::GEOTECNICA

With the propose of determining and evaluating the lateral strength in excavated piles, without the usage of Bentonite mud, submitted to a traction effort. A number of field tests (PMT, DMT, SPT and SPT-T) and laboratory tests (triaxial compression, particle size analysis , consistency limits, density of soil particles), with what was possible to identify the composition of a matured residual soil composed by 64% of clay, 33% of sand and 3% silt. It was performed, in the Experimental Field II , localized at the Universidade Federal de Viçosa campus, axel pull tests in four piles with 6 m of length and 0,25 m in diameter, obtaining values of lateral strength that where used as reference values for the theatrical and semi-empirical methods values. These results where also compared with values of compression tests made with other four piles of the same diameter and length located in the same test field, in another recent research. This made possible identify the existence or not of a gap between the lateral strength of pull effort and the lateral strength of a compression effort.