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A Review of Rock Classification Methods and Applicability to Blast Design
By Hae-Moon Choi, Sang-Don Lee, Hee Soon Shin, Choon Sunwo, Chang-Ha Ryu, Hyun-Koo Lee
Building tunnels means dealing with what rock is encountered. Relocation of the site of the underground structure is rarely possible. Tunneling engineers and miners have to cope with the quality of th
Jan 1, 2004
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A "Holistic" Approach of Blast Vibration Modeling and Prediction
By Thierry Bernard
Considering rock fragmentation by explosive as the ultimate goal in mines and quarries, vibrations are definitely one of the main drawbacks faced by the Industry. If we can accurately predict vibratio
Jan 1, 2009
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A 108-in Storm Tunnel Underneath Active Taxiways and Apron at O’Hare International Airport - NAT2024
By Tim M. Benson, Adam L. Lamanna, Carolina Martinez-Gutierrez, Mark J. Stephani
The Lower Concourse C Extension (LCE) 108-in Storm Sewer consists of a 2,797-foot long, 27 to 55-foot deep, 108-in I.D. storm sewer tunnel. Situated beneath active taxiways and a terminal apron at Har
Jun 23, 2024
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A 16 M Deep Basement Excavation in Kuala Lumpur Karst: Mixed Retention Solution
By Serhat Baycan, Mikias Yohannes
"Kuala Lumpur Karst is a complex limestone formation that is characterized by presence of cavities, solution channels, pinnacles and floaters. Basement excavations in such geological formations are us
Jan 1, 1900
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A 3D Discrete Event Simulation Model of a Truck-shovel Network System
By W Zeng, D Walker, D Cai, E Baafi
"The efficiency of the truck-shovel haulage system is significantly influenced by the truck fleet size. A discrete event simulation model with 3D animation has been developed to estimate the productiv
Nov 15, 2016
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A Bayesian network approach for geotechnical risk assessment in underground mines
By L. Uotinen, M. Rinne, R. Mishra
Underground mining gives rise to geotechnical hazards. A formal geotechnical risk assessment can help to forecast and mitigate these hazards. Frequentist probability methods can be used when the hazar
Jun 1, 2021
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A Best Practice Database for Energy Management Initiatives in the Mining Industry
By M. Y. Levesque
The Australian Government?s Energy Efficiency Opportunities (EEO) program launched in 2006 obliges companies that use more than 0.5 PJ (petajoule) or roughly 139 GWh (gigawatt hour) per year to conduc
Aug 1, 2013
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A Better Mousetrap
By B. G. Kelley
The MIDREX® Direct Reduction Process was developed during the 1960s by the Midland-Ross Corporation, which had pioneered shaft furnace technology and stoichiometric gas reforming for use in processing
Jan 1, 1998
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A Billion Dollar Success Story Remediation And Rebirth Of The Omaha, NE Riverfront
By J. M. Dempsey, R. A. Litle
Asarco Incorporated’s Omaha, Nebraska refinery site and the City of Omaha’s downtown redevelopment projects are the perfect example of the marriage of the Brownfield and Sustainable Development strate
Jan 1, 2004
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A Black Canvas – Planning a Greenfield Coalmine in New South Wales
By T W. C Stambolie
Coalmines, like any other mine, generally involve the classic three-staged approach to mining studies; namely concept, pre-feasibility study (PFS) and feasibility studies (Cusworth, 2012). Subsequent
Jun 28, 2016
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A Blank Piece Of Paper - A Practical Approach To Mine Management ? Introduction
By R. R. Smith
The meaning of the title, "Blank Piece of Paper," refers to the need for management to take a completely fresh viewpoint to the problems facing our industry. These problems are so severe and some so n
Jan 1, 1987
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A Blaster’s Tool To Measure Fragmentation
By Larry Mirabelli, David Lilly
In 1777, the French naturalist, Georges Louis Leclerc, Compte de Buffon developed a statistical technique to estimate the width between two parallel lines by randomly throwing a needle at the two line
Jan 1, 2008
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A Blasting-induced vibration control approach for resuming blasting activity near tailing dams in the Quadrilátero Ferrifero region after “Brumadinho Dam Colapse”.
By Marcus Neves, Eventomar Junior, Adilson Castro, Leandro Silveira, Sérgio Augusto
The collapse of the Vale S.A. mining tailings dam in 2019, a tragic event that shook Brazil and the world, had consequences that transcended the immediate pain and devastation. Among them, the suspens
Jan 21, 2025
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A Blueprint for Performance-Driven Operations Management Mining, Metallurgy and Exploration
By W. F. Visser
The growing availability of information and data analysis capabilities of recent years provides new opportunities for improving the performance of mining operations. By using real-time measurements an
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A Brief Description of the New Assay Office
On account of the increased work required from the assay office, owing to the large additions which have been made to the smelting and superphosphate plants during the last few years, it was found nec
Jan 1, 1918
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A Brief Overview of Mineral and Metallurgical Processing of Marine Ores
By A. Ehsani
"Seas and oceans constitute about 70% of the earth’s surface. They contain an enormous stock of various mineral resources such as sedimentary (marine placers), massive sulfide ore deposits, manganese
Jan 1, 2016
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A Brief Summary of the Coal Spontaneous Combustion Research
By Jerry C. Tien, Yingjiazi Cao
"Coal spontaneous combustion (SponCom) is a natural phenomenon in underground operations, which can either happen naturally or be triggered by human activities. For underground operations, espe-cially
Jan 1, 2019
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A Bureau Of Mines Miniplant Project To Evaluate Alumina Recovery Processes
By Ralph C. Kirby
The U.S. produces about 34 percent of the world's aluminum yet must import 90 percent of the raw materials needed. There are abundant resources of aluminum-bearing minerals such as clay, anorthos
Jan 1, 1974
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A Capitals Based Approach – Leading Innovation in Planning for Life-of-Mine Sustainability
By L Dyer, A Keith, G D. Corder
As mining activity moves to remote and less developed locations globally, a holistic approach to mine development is fundamental for achieving a balance between strong financial returns and corporate
Jul 16, 2014
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A Carbonização Continua - Carboval E A Cogeração De Energia
By Fernando Lopes Latorre
A cadeia produtiva do carvão vegetal que envolve as etapas de silvicultura, colheita e carbonização, tem passado por diversas mudanças nas últimas décadas. As produtividades volumétricas das florestas
Oct 30, 2017