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Using Machine Carousel To Reduce Cladding Support Cycle At Pk2 Ventilation ShaftBy Braam Blom
PK2 Ventilation shaft is part of Paardekraal No 2 twin shaft system that is being developed to replace depleting Merensky reef production at Paardekraal shaft complex. The sinking team at this shaft f
Jan 1, 2009
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Integration of gyratory crusher liner wear and operational performance for better crusher managementBy P. P. Rosario, D. M. Maijer
The primary crusher is a key component in the comminution process applied in open pit mines. A collaborative research project between the University of British Columbia and Highland Valley Copper (HVC
Jan 1, 2006
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RI 5006 Report Of Research And Technologic Work On Explosives, Explosions, And Flames Fiscal Years 1951 And 1952 ? IntroductionBy Bernard Lewis
This report summarizes fundamental research end technical studies conducted in the Explosives and Physical Sciences Division, Region VIII, of the Bureau of Mines in the 2 years July l, 1950, to June 3
Jan 1, 1953
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Communications in Plant DesignBy J. C. Loretto
"OPENING REMARKS Yesterday and today we have heard some very interesting papers on operating matters and some of you are probably wondering what we are now doing talking about Communications in Plant
Jan 1, 1973
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Developments of a Prototype Borehole Profilometer to Estimate Roof-Bolt Anchorage Capacity from Borehole Roughness Measurements-Laboratory TestsBy Mark K. Larson
Researchers at the National Institute for Occupational Safety and Health?s (NIOSH) Spokane Research Laboratory are developing a borehole profilometer to dynamically measure the roughness pro-file of b
Jan 1, 2007
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Insights Into Heap Leach TechnologyBy N. Dhawan
With ever-increasing demand, low-grade complex ores and strict environmental regulations, metallurgical processing options have become limited. Heap leach technology provides several benefits to comba
Jan 1, 2012
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Employment And Injuries In The Mineral Industries (8ee09731-ac68-4c21-b0ae-5f71a0789c5f)By John C. Machisak
THIS CHAPTER of the Minerals Yearbook (Volume III) contains overall injury experience for coal mines, both anthracite and bituminous, coke plants, petroleum and natural gas, peat, and asphalt and rela
Jan 1, 1962
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OFR-175-83 Fire Hazard Criteria For Noise Control Products In Underground Coal MinesBy Mark R. Pettitt
The development of fire hazard criteria for noise control products in underground coal mines are presented. Qualifying requisites of the criteria include maintaining miners' safety, allowing for
Jan 1, 1983
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The Rainfall Simulator for Hydrolic and Erosion Experiments on Mines, with an Example of its Application at Ranger Uranium Mine, Northern Territory, AustraliaBy F Hancock
A rainfall simulator was developed to assist with hydrogeomorphic research into the stability of engineered landforms associated with rehabilitated uranium mines in the Top End of Australia. It can be
Jan 1, 1997
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The Double-Notched (V-V) Bar Tension-Bending TestBy T. W. Wloder
During recent studies concerning the effects that various surface treatments, surface imperfections, locked-in residual stresses and metallurgical and geometrical notches have upon the mechanical beha
Jan 1, 1961
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NATM/SEM Analyses for San Francisco?s Transbay Extension TunnelBy Steve Klein
The Transbay Downtown Extension (DTX) in San Francisco involves the construction of a large-span tunnel with a width ranging from 43 to over 60 feet. The tunnel will be excavated using the New Austria
Jan 1, 2008
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Tellurium Resources In New MexicoTellurium (Te) is one of the least abundant elements in the crust and tends to form minerals associated with copper, lead, zinc and iron sulfide deposits. Today, most tellurium production comes from t
Feb 27, 2013
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Bulletin 134 The Use of Mud Laden Fluid in Oil and Gas WellsBy WILLIAM F. McMURRAY, James O. Lewis
The Bureau of Mines is investigating the technology of petroleum and its products, the investigation including well-drilling methods and the transportation, treatment, and utilization of petroleum and
Jan 1, 1916
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OFR-95-79 The Design And Demonstration Of A Longwall Illumination SystemBy A. E. Ketler
A second generation lighting system was installed in the Greenwich Collieries longwall. This report describes the hardware, installation, maintenance, and final results of the program.
Jan 1, 1978
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Effects of Electronic Detonators in Underground Tunneling ApplicationsBy Charles Zdazinsky
Over-break is undesirable in underground civil construction because it excessively damages rock along the perimeter of the tunnel, which directly influences the cycle times of advancement. A quicker c
Jan 1, 2015
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The Status Of Gold And Silver Leaching Operations In The United StatesBy Michael G. Pojar, Peter G. Chamberlain
Solution mining, primarily by heap leaching, has emerged as an important method for mining gold and silver in the United States. Heap leaching offers many economic and environmental advantages over co
Jan 1, 1981
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Economics and Challanges for the Development of Mining and Metallurgy Sector in the Bor Basin of Copper in Serbian Part of Danube RegionBy S. Zekovic
"The paper gives an overview of the economics condition and strategic business challanges of the mining&metallurgy sector and their possible impact on the future development of the Bor basin of copper
Jan 1, 2012
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MLA 27-86 - Mineral Resources Of The Whitewater Study Area, Riverside And San Bernardino Counties, California ? SummaryBy Edward L. McHugh
The study area, which comprises 11,500 acres, includes the 9,610-acre Whitewater Wilderness Study Area, in the California Desert Conservation Area, 15 miles northwest of Palm Springs, CA. The U.S. Bur
Jan 1, 1986
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Applied Mineralogy of Refractory Copper Ores from the Nchanga Mine in the Copperbelt of Northern ZambiaBy A M. Hagni
Certain copper ores from the Nchanga Copper Mine in the northern Zambia Copperbelt are refractory with respect to conventional beneficiation techniques. This paper reviews recent study of those ores t
Jan 1, 2008
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The Treatment Of Acid Effluent From The Grootvlei Mine Using Novel IX TechniquesBy R. E. Robinson
A novel variation of the GYPCIX process for the treatment of the acid mine effluent water from Grootvlei is described, in which a number of valuable by products can be obtained and the product water c
Jan 1, 1998