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  • SAIMM
    Using Machine Carousel To Reduce Cladding Support Cycle At Pk2 Ventilation Shaft

    By 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

  • CIM
    Integration of gyratory crusher liner wear and operational performance for better crusher management

    By 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

  • NIOSH
    RI 5006 Report Of Research And Technologic Work On Explosives, Explosions, And Flames Fiscal Years 1951 And 1952 ? Introduction

    By 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

  • CIM
    Communications in Plant Design

    By 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

  • SME-ICGCM
    Developments of a Prototype Borehole Profilometer to Estimate Roof-Bolt Anchorage Capacity from Borehole Roughness Measurements-Laboratory Tests

    By 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

  • SME
    Insights Into Heap Leach Technology

    By 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

  • NIOSH
    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

  • NIOSH
    OFR-175-83 Fire Hazard Criteria For Noise Control Products In Underground Coal Mines

    By 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

  • AUSIMM
    The Rainfall Simulator for Hydrolic and Erosion Experiments on Mines, with an Example of its Application at Ranger Uranium Mine, Northern Territory, Australia

    By 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

  • CIM
    The Double-Notched (V-V) Bar Tension-Bending Test

    By 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

  • SME
    NATM/SEM Analyses for San Francisco?s Transbay Extension Tunnel

    By 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

  • SME
    Tellurium Resources In New Mexico

    Tellurium (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

  • NIOSH
    Bulletin 134 The Use of Mud Laden Fluid in Oil and Gas Wells

    By 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

  • NIOSH
    OFR-95-79 The Design And Demonstration Of A Longwall Illumination System

    By 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

  • ISEE
    Effects of Electronic Detonators in Underground Tunneling Applications

    By 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

  • SME
    The Status Of Gold And Silver Leaching Operations In The United States

    By 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

  • CIM
    Economics and Challanges for the Development of Mining and Metallurgy Sector in the Bor Basin of Copper in Serbian Part of Danube Region

    By 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

  • NIOSH
    MLA 27-86 - Mineral Resources Of The Whitewater Study Area, Riverside And San Bernardino Counties, California ? Summary

    By 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

  • AUSIMM
    Applied Mineralogy of Refractory Copper Ores from the Nchanga Mine in the Copperbelt of Northern Zambia

    By 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

  • SAIMM
    The Treatment Of Acid Effluent From The Grootvlei Mine Using Novel IX Techniques

    By 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