{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3370"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3370","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Sobre uma nova relação índice de vazios tensão em solos","abstract":"ln this dissertation a study of the compressibility characteristics of soils subjected to oedometric compression tests is presented. A critical analysis of the empirical relationship between vertical effective stress (σ’v) and specific volume (v) is made. From this analysis a new relationship is proposed, with a rational basis, for the unidimensional compression phenomenon. A new process for obtaining the maximum past vertical stress (σ’vm) based on this new relationship is presented. It is also suggested, as an alternate solution for the determination of σ’vm, the utilization of Pacheco Silva's (1970) graphical construction directly on the compression curve log v x log σ’v. It is also studied, with less emphasis, the interdependence between secondary compression and the coefficient of earth pressure at rest (Ko).","abstract_html":"ln this dissertation a study of the compressibility characteristics of soils subjected to oedometric compression tests is presented. A critical analysis of the empirical relationship between vertical effective stress (σ’v) and specific volume (v) is made. From this analysis a new relationship is proposed, with a rational basis, for the unidimensional compression phenomenon. A new process for obtaining the maximum past vertical stress (σ’vm) based on this new relationship is presented. It is also suggested, as an alternate solution for the determination of σ’vm, the utilization of Pacheco Silva's (1970) graphical construction directly on the compression curve log v x log σ’v. It is also studied, with less emphasis, the interdependence between secondary compression and the coefficient of earth pressure at rest (Ko).","abstract_has_math":false,"creators":["Martins, Ian Schumann Marques"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Lacerda, Willy Alvarenga"],"committee_chairs":[],"committee_members":[],"year":1983,"date_issued":"1983-07","date_published":"1983-07","updated_at":"2026-07-24T01:16:01Z","subjects":["Engenharia Civil"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3370","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Lacerda, Willy Alvarenga"]},{"key":"dc:creator","label":"Author","values":["Martins, Ian Schumann Marques"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-01-02T13:09:36Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:23Z"]},{"key":"dc:date.issued","label":"Date","values":["1983-07"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engenharia Civil"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/3370"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["ln this dissertation a study of the compressibility characteristics of soils subjected to oedometric compression tests is presented. A critical analysis of the empirical relationship between vertical effective stress (σ’v) and specific volume (v) is made. From this analysis a new relationship is proposed, with a rational basis, for the unidimensional compression phenomenon. A new process for obtaining the maximum past vertical stress (σ’vm) based on this new relationship is presented. It is also suggested, as an alternate solution for the determination of σ’vm, the utilization of Pacheco Silva's (1970) graphical construction directly on the compression curve log v x log σ’v. It is also studied, with less emphasis, the interdependence between secondary compression and the coefficient of earth pressure at rest (Ko)."]},{"key":"dc:title","label":"Title","values":["Sobre uma nova relação índice de vazios tensão em solos"]}]}],"canonical_facts":{"dc:contributor.advisor":["Lacerda, Willy Alvarenga"],"dc:creator":["Martins, Ian Schumann Marques"],"dc:date.accessioned":["2018-01-02T13:09:36Z"],"dc:date.available":["2026-05-16T03:04:23Z"],"dc:date.issued":["1983-07"],"dc:description.abstract":["ln this dissertation a study of the compressibility characteristics of soils subjected to oedometric compression tests is presented. A critical analysis of the empirical relationship between vertical effective stress (σ’v) and specific volume (v) is made. From this analysis a new relationship is proposed, with a rational basis, for the unidimensional compression phenomenon. A new process for obtaining the maximum past vertical stress (σ’vm) based on this new relationship is presented. It is also suggested, as an alternate solution for the determination of σ’vm, the utilization of Pacheco Silva's (1970) graphical construction directly on the compression curve log v x log σ’v. It is also studied, with less emphasis, the interdependence between secondary compression and the coefficient of earth pressure at rest (Ko)."],"dc:identifier.uri":["http://hdl.handle.net/11422/3370"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Engenharia Civil"],"dc:title":["Sobre uma nova relação índice de vazios tensão em solos"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:01Z"}