Zobrazeno 1 - 10 of 19 pro vyhledávání: '"Waldyr Lopes de Oliveira Filho"'
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Akademický článek
Large strain consolidation analyses of fine tailings disposal in mining pits
Autor: Mariana Queiroz Pinho, Waldyr Lopes de Oliveira Filho
Publikováno v: REM: International Engineering Journal, Vol 73, Iss 3, Pp 411-419 (2020)
Abstract Herein, three-dimensional analyses of large strain consolidation applied to tail ings disposal in mining pits is studied. The main goal is to estimate filling time and, ac cordingly, the capacity of the pit. Other useful results, such as dry
Externí odkaz: https://doaj.org/article/e1065f65568c426387d52275b7aac1b4
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2
Rheology of mine tailings deposits for dam break analyses
Autor: Waldyr Lopes de Oliveira Filho, Débora Magalhães Chácara
Publikováno v: REM: International Engineering Journal, Vol 74, Iss 2, Pp 235-243 (2021)
REM-International Engineering Journal, Volume: 74, Issue: 2, Pages: 235-243, Published: 29 MAR 2021
REM-International Engineering Journal v.74 n.2 2021
REM-International Engineering Journal
Fundação Gorceix (FG)
instacron:FG
This article deals with the rheology of tailings deposits related to dam break analysis. The material used was a fine tailings from iron ore processing. Geotechnical and rheological characterization of these tailings were performed. The rheological c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01d86e375997053952c7f15e3791b767
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000200235&tlng=en
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3
Large strain consolidation analyses of fine tailings disposal in mining pits
Autor: Waldyr Lopes de Oliveira Filho, Mariana Queiroz Pinho
Publikováno v: REM: International Engineering Journal, Vol 73, Iss 3, Pp 411-419 (2020)
REM-International Engineering Journal v.73 n.3 2020
REM-International Engineering Journal
Fundação Gorceix (FG)
instacron:FG
Herein, three-dimensional analyses of large strain consolidation applied to tail ings disposal in mining pits is studied. The main goal is to estimate filling time and, ac cordingly, the capacity of the pit. Other useful results, such as dry density
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54215fe06136df71fbf6a32d407ccbe3
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2020000300411&tlng=en
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4
Impact of methods used to reconstitute tailings specimens on the liquefaction potential assessment of tailings dams
Autor: Waldyr Lopes de Oliveira Filho, Mariana Martins Corrêa
Publikováno v: Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
REM-International Engineering Journal, Volume: 72, Issue: 3, Pages: 507-513, Published: 19 JUN 2019
REM-International Engineering Journal v.72 n.3 2019
REM-International Engineering Journal
Fundação Gorceix (FG)
instacron:FG
REM: International Engineering Journal, Vol 72, Iss 3, Pp 507-513
The aim of this research is to investigate the liquefaction susceptibility of silt sandy mining tailings by experimental laboratory techniques. The main aspect analyzed is how techniques of sample reconstitution impact the results obtained in static
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5142ad1541c7f015000ee2e8be5c7d99
http://www.repositorio.ufop.br/handle/123456789/12320
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5
Waste disposal using a spreader and conveyor belt method
Autor: Waldyr Lopes de Oliveira Filho, Diego dos Ramos Nunes, José Margarida da Silva
Publikováno v: Rem: Revista Escola de Minas v.68 n.4 2015
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Rem: Revista Escola de Minas, Volume: 68, Issue: 4, Pages: 479-484, Published: DEC 2015
Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
In the search for opportunities to decrease operational costs in iron ore mining, waste disposal by conveyor belt has been considered as an alternative. In this work, this form of waste dump is investigated by means of the construction of a test pile
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ba2952510efab290d6499c52dfd6979
https://doi.org/10.1590/0370-44672014680125
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6
Determinação da curva de retenção de água em solos utilizando a bomba de fluxo
Autor: Waldyr Lopes de Oliveira Filho, Cláudio Henrique de Carvalho Silva, Luciana Portugal Menezes
Publikováno v: Rem: Revista Escola de Minas v.68 n.2 2015
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Rem: Revista Escola de Minas, Volume: 68, Issue: 2, Pages: 207-213, Published: JUN 2015
Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
Reliable measurements of the Soil Water Retention Curve, SWRC, are necessary for solving unsaturated flow problems. In this sense, a method to obtain the SWRC of a silty sand using a flow pump, as well as details about procedures and some results, ar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b31877dc9f3f611293519229d851d497
https://doi.org/10.1590/0370-44672015680108
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7
Diagnóstico do estado de projeto, construção e manutenção de estradas de mina de minério de ferro no Quadrilátero Ferrífero: caso complexo de Itabira
Autor: Waldyr Lopes de Oliveira Filho, Maíra dos Santos Reis, Gladsney Pena, Ely Oliveira
Publikováno v: Rem: Revista Escola de Minas v.67 n.4 2014
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
Rem: Revista Escola de Minas, Volume: 67, Issue: 4, Pages: 421-429, Published: DEC 2014
Although mine haul roads only provide support for mining activities, their role can be quite significant in any effort to optimize transportation with trucks in open pit mining. In 2009, an inventory about the design, construction and maintenance con
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3e1a5f724e75a3b4147990f77c8fcb5
https://doi.org/10.1590/0370-44672014670169
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8
Haul roads structural design in open pit mines
Autor: Waldyr Lopes de Oliveira Filho, Hernani Mota de Lima, Lilian Masetti Lobo Soares de Sousa
Publikováno v: Rem: Revista Escola de Minas v.65 n.2 2012
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
Rem: Revista Escola de Minas, Volume: 65, Issue: 2, Pages: 279-284, Published: JUN 2012
Uma estrada de mina foi dimensionada com materiais típicos ocorrentes em mineração de minério de ferro no Brasil, utilizando-se os métodos empíricos CBR e DNER. Através do programa de dimensionamento estrutural mecanístico-empírico ELSYM5, c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fad4777190ba9f3f099e96b62b8ca09
https://doi.org/10.1590/s0370-44672012000200018
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10
Numerical solution for consolidation and desiccation of soft soils
Autor: Waldyr Lopes de Oliveira-Filho, Dobroslav Znidarčić, Daniel T. C. Yao, Xiao-Chuan Cai
Publikováno v: International Journal for Numerical and Analytical Methods in Geomechanics. 26:139-161
The consolidation and desiccation behaviour of soft soils can be described by two time-dependent non-linear partial differential equations using the finite strain theory. Analytical solutions do not exist for these governing equations. In this paper,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::444a13b9ac9b04eae12f066f8f231f55
https://doi.org/10.1002/nag.196
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