Compressibilidade unidimensional da argila cinza do Rio de Janeiro em Botafogo

• Ano de defesa: 1981
• Autor(a) principal: Correia, Maria Henriqueta Cunha
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Civil; UFRJ
• Palavras-chave em Português: Engenharia Civil; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL
• Link de acesso: http://hdl.handle.net/11422/3221

This work aims at determining the compressibility characteristics of a soil subjected to consolidation caused by reduction of hydraulic pressure of a confined watertable. The equipment utilized, a hydraulic oedometer manufactured by W. Farrance Co. permitted the use of back pressure and the measurement of porewater pressure on the non-drained surface. Comparisons are made between parameters from laboratory tests and those obtained from in situ observations. A method is presented for computation of the volumetric compressibility versus effective stress logarithm from the data of the strain-effective stress logarithm curve. Such a method renders it simpler a theoretical prediction of the curve revealing the degree of sample disturbance and permitting the estimate of the overconsolidation pressure.