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Infrastructure in mining industries: A geopolitical and investment challenge
By M. T. Ansari
"This article explains the ways in which investment on mining infrastructure is a geopolitical issue. It discusses the effect of installing sufficient infra structure to get the product to the world m
Jan 1, 2011
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Reduction Of Cyanate To Cyanide In Cyanidation Tailings Under Reducing Environments
By H. K. Lin
Residual cyanide in cyanidation tailings can be detoxified by its oxidation to cyanate, as in the Inco and Degussa processes. However, cyanate, the product of detoxification and other oxidation proces
Jan 1, 2008
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Development in Utility Tunnelling in the United Kingdom During the Years 1990–2000
By Andy Mille
The paper highlights development of tunneling methodology in the UK during the years 1990-2000 using the example of two major tunneling contracts where there solution of difficult tunneling problems d
Jan 1, 2001
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Coal’s Role in Sustaining Society
By R. Larry Grayson, Joel R. Warneke
The mining industry has searched for a message that will resonate with the public while focusing on the industry’s positive contributions to society. So far, environmental groups remain unconvinced a
Jan 1, 2006
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Productivity Gains Using A Computer-Aided Earthmoving System On A Track-Type Dozer
By D. R. Gagnon
Mining companies are continually looking for product-ivity and efficiency improvements with their equipment to reduce operating costs. This paper will review the results of a productivity analysis co
Jan 1, 2002
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Tunnel Protection by Ground Improvement Prior to Track Lowering
By Ronald E. Triplett, George K. Burke, Bernard H. Voor
To accommodate larger double-stack rail cars through a tunnel, the existing active tracks were to be lowered. The tunnel is an elliptical, horseshoe-shape with concrete base support, removal of which
Jan 1, 2001
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Effect Of Some Heating Parameters On Volume Expansion Of Borax
By B. Kahraman
About 70% of the world?s total boron reserves are located in Turkey. Boron minerals are typically concentrated by attrition scrubbing followed by screening and classification to remove clay minerals a
Jan 1, 2008
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Concentrator Expansion at Freeport Indonesia’s Grasberg Operations
By Rick Coleman
PT Freeport Indonesia’s (PTFI) latest expansion has increased total mill throughput to 125kt/d (137,700 stpd). The most recent expansion included the installation of a semiautogenous mill (SAG) desig
Jan 1, 1996
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Tunnel Cost Model
By Charles H. Minott, Michael J. Markow, Robert D. Wyatt, Fred Moavenzadeh
The substantial investment in tunnels anticipated in the next twenty years has focused new attention on the economics of tunnel construction itself and on some costly problems associated with undergro
Jan 1, 1974
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Design Of Initial And Final Support Of Pressure Tunnels In The Phoenix "SGC"
By Timothy P. Smirnoff, Tracy K. Lundin
INTRODUCTION The City of Phoenix, Arizona is located in the Phoenix Basin watershed which is prone to flash flooding several times each year. The runoff from these storms moves from the mountains i
Jan 1, 1985
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Optimizing Influences In The Selection of Grinding Mill Technology
By G. Duncan, K. Winther, R. Ericsson
Distinct trends in grinding mill technology have emerged in recent years. In an effort to optimize overall mill performance for the needs of the End User, broad measures of logistical speed, process f
Jan 1, 1999
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Designing Continuous Conveyor Systems in Urban Environments: The 63rd Street Access Tunnel in New York City
By Dean Workman
Located in downtown New York City, this project necessitated an innovative conveyor design for successful muck removal. This paper will discuss the technical challenges and engineering solutions of th
Jan 1, 2008
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More Than 1,200 Exhibitors on Hand at MINExpo 2004
By Georgene Renner, William R. Yernberg, Steve Kral
Allmand exhibited its LSC 100Light Sequence Commander, the mining industry’s first automatic lighting and command control system. The system is available with all of Allmand’s portable light towers.
Jan 1, 2004
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Improvement of Working Conditions and Opinions of Mine Workers When Battery Electric Vehicles (BEVs) Are Used Instead of Diesel Machines — Results of Field Trial at the Kittilä Mine, Finland
By A. Halim, J. Gustafsson, A. van Wageningen, J. Johansson, · J. Lööw, K. Kocsis
A major part of the European Union’s (EU) project Sustainable Intelligent Mining System (SIMS) is investigating the development of diesel-free/carbon–neutral underground mines in order to ensure susta
Oct 25, 2021
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Industrial Minerals 2008 - Ball Clay
By R. L. Virta
Editor?s note: Each year, the June issue of Mining Engineering features an industrial minerals review. Several people put in a fair amount of time in developing the material for this issue. Thank y
Jan 1, 2009
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Explosion Phenomenology In Jointed Rocks -New Insights-
By F. E. Heuze
This article deals with the effects of high-explosive and nuclear explosions in rock masses. We first highlight the strong influence of geological discontinuities, such as joints and faults, on ground
Jan 1, 1991
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An Update On “The Good, The Bad, And The Ugly” Silica--Revisited
By E. A. Metz
It has been approximately four years since IARC reclassified crystalline silica as a “Group One” substance. Since that time, crystalline silica has been considered a human carcinogen. Silicosis i
Jan 1, 2000
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Condition Assessment And Rehabilitation Of Tunnels: Case Histories From California?s Water Tunnels
By David Van Horsen
Operation and maintenance of California?s water tunnels is an important factor and vital link in California?s infrastructure. These tunnels are owned and operated by a variety of large and small priva
Jan 1, 2008
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Discussion - Analysis and assessment of grade variability for improving exploration planning and reserve estimation
By E. Tulcanaza
M.S. Azun I do not at all agree with the basic points of the author's conclusion. The use of lognormal or normal model to respond to the attribute distribution function should be carefully quest
Jan 3, 1985
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Frontier Research In Dynamic Control, Vision And Collision Avoidance For Truck Haulage
By S. Agarwal, S. Frimpong
The creation and maintenance of a healthy working environment in surface mining operations require sustained efforts in pursuing advanced research initiatives toward the development and deployment of
Jan 1, 2007