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  • SME
    Improving The Capture Of Coarse Particles Using Bubble Clusters - Preprint 09-083

    In the present study, we have investigated the conditions for the formation of bubble clusters and the effect of well-defined agitation on the stability of clusters. A specially designed cell was used

    Jan 1, 2009

  • SME
    Use of belt air in underground coal mines ? with special emphasis on TSP recommendations

    The use of belt air in underground coal mines has been a continuous discussion since it was first introduced in the Federal Coal Mine Health and Safety Act (Coal Act) of 1969. Although the Coal Act pr

    Jan 1, 2009

  • SME
    A Case History Of Aggregate Resource Development On Allotted Indian Lands

    By D. R. Hack

    Increased consumption of concrete in the Pacific Northwest has pushed aggregate resource development pressure from urban areas west of the Cascade Range to rural areas east of the Cascades. Some recen

    Jan 1, 2002

  • SME
    Business Aspects Of Minerals Education: Us “Tech Wienies” Have Been Doing It All Wrong

    By G. A. Johnson

    Basic management principles will be discussed (as they apply to minerals education efforts), especially in light of the changing nature of volunteerism in today’s society. Also, the “minerals educati

    Jan 1, 2001

  • SME
    Optimization Of Heavy Media Cyclone Circuits

    By T. S. Bomar, C. J. Wood

    Heavy media cyclones (HMCs) are efficient, high-tonnage devices suitable for upgrading run-of-mine coal in the 50 to 0.5 mm size range. Unfortunately, industrial HMC circuits are often not optimized

    Jan 1, 2002

  • SME
    World’s Largest Slurry Shield Tunneling Report in Trans-Tokyo Bay Highway Construction

    By Yasutaka Izumi, Tuneyoshi Funasaki, Keizou Miki, Makoto Kanai

    INTRODUCTION The Tokyo metropolitan region, inclusive of the three neighboring prefectures (Kanagawa, Chiba and Saitama), has the highest concentration of population and industry in Japan; with an

    Jan 1, 1997

  • SME
    Mine Reclamation Costs In The Alberta Oil Sands - Introduction

    By U. Thorley

    Management of mine and tailings reclamation activities by surface mining oil sands operations in Alberta, Canada is experiencing increased national and international attention. Of particular concern

    Jan 1, 2011

  • SME
    Geotechnical Exploration for a Lake Mead Intake

    By Richard F. Coon

    Six potential locations along the west shore of Lake Mead were evaluated to site anew water intake pumping station for the SNWA. The evaluations were based upon geotechnical exploration results and c

    Jan 1, 1997

  • SME
    Benefits Of The Pilot Tunnel On The Cumberland Gap Highway Tunnel Project

    By W. Randall, Robert M. Leary

    Twin 1250 m (4100 ft.) long highway tunnels through Cumberland Mountain near Middlesboro, Kentucky are planned to be completed in the early 1990's. The tunnels will be excavated in sandstones, li

    Jan 1, 1987

  • SME
    A heat study and the modelling of future climatic conditions at Vale Inco?s Coleman/McCreedy East Mine

    By C. K. Kocsis

    A study was undertaken to evaluate the thermal environment and determine the contributing heat sources within the existing 153 Orebody of Coleman/McCreedy East Mine which would then enable the predict

    Jan 1, 2009

  • SME
    Discussion – Classification effects in wet ball milling circuits – by R. E. McIvor Technical Papers, MINING ENGINEERING, Vol. 40, No. 8 August 1988, pp. 815-820

    By K. Holmberg, D. Herriot

    This paper by Mr Mclvor is yet another contribution to the eternal controversy surrounding the benefits, or otherwise, of high circulating loads in closed circuit grinding. Throughout the paper it is

    Jan 1, 1989

  • SME
    Technology News – New Software Helps in Sizing Pillars For Highwall Mining

    When overburden depth exceeds economical recovery in openpit coal mines, the use of highwall mining systems has increasingly come into play. However, stability in the highwalls is always a major safe

    Jan 1, 2006

  • SME
    MSHA?s DPM rule for metal and nonmetal mines

    By W. H. Pomroy

    In its 2001 diesel particulate matter (DPM) rule for metal and nonmetal underground mines, MSHA established an interim concentration limit of 400 micrograms of total carbon (TC) per cubic meter of air

    Jan 1, 2009

  • SME
    Impact Of Air Velocity And Support Advance On Shield-Generated Dust - Preprint 09-087

    Steady increases in longwall production have required operators to apply greater quantities of ventilating air in an effort to control and dilute respirable dust. Significant increases in shearer spe

    Jan 1, 2009

  • SME
    Industrial Minerals 2005 – Bauxite and Alumina

    By P. S. Baker

    CRU estimates that the global supply of metallurgical grade alumina (MGA) grew by 5 percent during 2005 to a little more than 61 Mt (67 million st). About 30.7 Mt (33.8 million st), or 50.3 percent,

    Jan 1, 2006

  • SME
    Rock Tunnels Recently Completed In Chicago

    By Joseph Irons, David Westfall

    Three rock tunnel sewer systems are underway in the Chicago Area. (Figure 1) The three are designed to act independently and to be later connected to the future tunnels of the master plan. The tunnel

    Jan 1, 1997

  • SME
    Rock Remediation Techniques For Mining And Quarry Operations

    By Daniel Journeaux

    Introduction Daniel Journeaux is President of Janod Incorporated. Janod is a family owned and operated company that has been working in the field of slope stabilization since 1970. Daniel has worke

    Jan 1, 2005

  • SME
    Environmental Regulations in the Powder River Basin

    By Marion Loomis

    Environmental regulation is an ever growing cost to the mining industry. Requirements for such items as air quality modeling, hazardous waste disposal, selenium concentration in water and sagebrush pl

    Jan 1, 1994

  • SME
    Stability Assessment Of A Mercury Polythiocarbonate Material Using "Integrated Leaching" Procedures

    By T. Patten

    A method for stabilizing mercury containing waste for landfill disposal would be a very cost effective solution for industry. A mercury polythiocarbonate material which is made via a metallurgical pro

    Jan 1, 2012

  • SME
    Important Characteristics Of Membranes For Reliable Performance In Mine Wastewater Treatment Systems

    By T. Lilley

    The use of membranes in wastewater systems has increased rapidly in recent years. Microporous or semi-permeable barriers augment conventional chemical or biological processes to meet stringent treatme

    Feb 27, 2013