Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Vidal Felix Navarro Torres"'
Autor:
Vidal Felix Navarro Torres, Janine Rodrigues Figueiredo, Raul Carretero De La Hoz, Márcio Botaro, Leonardo Soares Chaves
Publikováno v:
Minerals, Vol 12, Iss 8, p 1037 (2022)
Innovation has an important role in improving the productivity, safety and sustainability of mining operations. Historically, ore transport was done by diesel trucks, but with the commitment to reduce CO2 emissions and increase mine safety, mining co
Externí odkaz:
https://doaj.org/article/3cec1aed5fff44f683974eac28173985
Autor:
Vidal Félix Navarro Torres, Cristian Castro, María Elena Valencia, Janine Rodrigues Figueiredo, Leandro Geraldo Canaan Silveira
Publikováno v:
Mining, Vol 2, Iss 4, Pp 654-669 (2022)
The blasting operation considerably influences the overall productivity of opencast mines, especially when blasting results in oversized fragments that impact the operations ranging from excavation to milling. In this work, a numerical analysis of bl
Externí odkaz:
https://doaj.org/article/2ca956aa6d8d4a5f901a4f14d3305d8d
Autor:
Leonardo Soares Chaves, Luiz Alberto Carvalho, Felipe Ribeiro Souza, Beck Nader, Carlos Enrique Arroyo Ortiz, Vidal Félix Navarro Torres, Taís Renata Câmara, Gian Franco Napa-García, George Eduardo Sales Valadão
Publikováno v:
REM: International Engineering Journal, Vol 73, Iss 1, Pp 119-126 (2019)
Abstract The traditionally and widely used Lerchs-Grossmann algorithm presents well-known limitations that newer propositions attempt to overcome. The direct block schedule (DBS) methodology, which has gained relevance with computational advances, ob
Externí odkaz:
https://doaj.org/article/82271fbe5f6d47c1a61a3070ed9a3f2b
Autor:
Vidal Félix Navarro Torres
Publikováno v:
Dyna, Vol 87, Iss 215 (2020)
In this study, an innovative numerical model was developed to quantify the environmental sustainability situation of in situ underground coal gasification (UCG) and the CO2 storage process, which is expressed in terms of the environmental sustainabil
Externí odkaz:
https://doaj.org/article/7e7f5a31f23044289dfd9ced6ad964b7
Autor:
Luiz Alberto Carvalho, Felipe Ribeiro Souza, Leonardo Soares Chaves, Beck Nader, Taís Renata Câmara, Vidal Félix Navarro Torres, Roberto Galery
Publikováno v:
REM: International Engineering Journal, Vol 71, Iss 4, Pp 621-629
Abstract Geologic modeling is an important step in determining the benefits and final pit dimensions for mining operations. Geostatistical models and distance-based functions are the main methods used to estimate the grade behavior. However, these tw
Externí odkaz:
https://doaj.org/article/1bdf1247a56c4a70be127bf7ca67b874
Autor:
Felipe Ribeiro Souza, Taís Renata Câmara, Vidal Félix Navarro Torres, Beck Nader, Roberto Galery
Publikováno v:
REM: International Engineering Journal, Vol 72, Iss 4, Pp 625-634
Abstract The production rate of a mining operation has an important effect on the operational cycle and gross profit, which are often evaluated based on engineering practices. Assessment of the economic performance of mine operations in mining engine
Externí odkaz:
https://doaj.org/article/c2e5164b7c684d1cb1a6710de7565b95
Autor:
Felipe Ribeiro Souza, Hudson Rodrigues Burgarelli, Alizeibek Saleimen Nader, Carlos Enrique Arroyo Ortiz, Leonardo Soares Chaves, Luiz Alberto Carvalho, Vidal Félix Navarro Torres, Taís Renata Câmara, Roberto Galery
Publikováno v:
REM: International Engineering Journal, Vol 71, Iss 1, Pp 97-104
Abstract This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is ana
Externí odkaz:
https://doaj.org/article/60b74717205f42e4b3ebec0cc821b54f
Autor:
Hudson Rodrigues Burgarelli, Felipe Ribeiro Souza, Alizeibek Saleimen Nader, Vidal Félix Navarro Torres, Taís Renata Câmara, Carlos Enrique Arroyo Ortiz, Roberto Galery
Publikováno v:
REM: International Engineering Journal, Vol 71, Iss 2, Pp 275-280
Abstract Mineral projects are composed of geological, operational and market uncertainties, and reducing these uncertainties is one of the objectives of engineering. Most surveys assess the impact of geological and operational uncertainties on the mi
Externí odkaz:
https://doaj.org/article/0fb85e163acd4995a6aa68bb5cb34b76
Publikováno v:
REM: International Engineering Journal, Vol 72, Iss 1, Pp 133-139
Abstract The design of room-and-pillar mines relies on the correct estimation of the safety indicator of the underground structures formed by the excavation of drifts. Thus, the study of the geomechanical behavior is of vital importance. The mathemat
Externí odkaz:
https://doaj.org/article/859d9aa2c16646ecbf3ffc84c57ff8b1
Autor:
Felipe Ribeiro Souza, Taís Renata Câmara, Vidal Félix Navarro Torres, Beck Nader, Roberto Galery
Publikováno v:
REM: International Engineering Journal, Vol 72, Iss 2, Pp 321-328
Abstract The transport distance in a mining operation strongly influences a mine operation revenue and its operational cycle because it is a fundamental part of the total mining costs. Generally, the transport route is determined based on an engineer
Externí odkaz:
https://doaj.org/article/1a2a0549e65246dcb088602a1cf64301