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  • SME
    Studies On Mechanical Properties And Influence Of Structural Defects Of Cu-Mo Composite Materials Obtained By The PVD Method

    By V. G. Grechanyuk

    The paper presents the mechanical properties of Cu-Mo composite materials depending on the molybdenum content. The influence of structural defects on the mechanical-physical properties of the condensa

    Jan 1, 2008

  • SME
    Control of Ground Movements Due to Tunneling with an Earth Pressure Balance TBM

    By Sakai Kunito, Nigel B. Sugden

    If an Earth Pressure Balance (EPB) TBM is operated effectively tunneling can be carried out producing negligible ground movements. Using the methods given in this paper face losses of the order of 0.5

    Jan 1, 2001

  • SME
    Cost Effective Tunnel Development In Slovakia

    By John Chadwick

    In the drive for faster development advance rates, railbound systems can be advantageous, in the right application. Skanska BS, the contractor to mine-owner VSK Mining, is driving an adit access deep

    Jan 1, 2009

  • SME
    Binding Iron Ore Pellets With Fly-Ash – Preprint 97-105

    By D. D. Banerjee, S. K. Kawatra, T. C. Eisele

    A high calcium fluid-bed combustor ash has been shown to be an effective binder at dosages of 1 to 2% of the magnetite concentrate weight. Magnetite pellets 1.3 cm (1/2 inch) in diameter were produced

    Feb 24, 1997

  • SME
    Impacts Of Spoil Conditions On Reforestation Of Surface Mined Land (b2bd3f1e-5fbd-441d-ae83-ec597c5ff463)

    By M. H. Pelkki, R. J. Sweigard, P. W. Conrad, J. M. Ringe, D. H. Graves

    Research has shown that excessive soil compaction is detrimental to the establishment of trees in reclaimed soils. Dry bulk density and penetration resistance are two soil parameters that can be used

    Jan 1, 2001

  • SME
    Design And Construction Challenges Of Hard Rock TBMS At The Gotthard Base Tunnel

    By Michael Rehbock-Sander

    The Gotthard Base Tunnel (GBT) is 57 km (35 miles) long and consists of two par-allel single-track tubes with an ex-cavation diameter ranging from 8.8 to 9.5 m (28.8 to 31.2 ft). These are interlinked

    Jan 1, 2012

  • SME
    61st Iteration of MINExpo Upbeat, Optimistic

    By Tim O’Neil

    “America’s mining industry brings good jobs to communities across America and provides the energy, minerals and equipment that are vital to our economic security and our way of life.” That was the

    Jan 1, 2004

  • SME
    Vendors Show Off Latest in Mining Technology at SME Exhibit

    By Georgene Renner, William R. Yernberg, Steve Kral

    ABB offers complete electrical revamps of mining shovels with ac or dc drives, drive control, frequency converters with insular gate bi-polar transistor technology, intelligent control packages and vi

    Jan 1, 2005

  • SME
    North 27th Street ISS Extension: Unique Owner/Contractor Agreement Settles Major Disputes

    By Donald J. Olson

    The North 27th St. ISS Extension tunnel will, under present plans, be the last constructed section of Milwaukee Metropolitan Sewerage District?s (MMSD?s) existing deep tunnel system. The 6.5 m (21 ft)

  • SME
    Niagara Tunnel Project

    By Doug Harding

    The Niagara Tunnel Project (NTP) is a 10.4 km (6.5 mi) long, 14.4 m (47.5 ft)bored tunnel that will run under the City of Niagara Falls from the Upper Niagara River to the Sir Adam Beck Power Station.

    Jan 1, 2007

  • SME
    Overcoming Sustainability Challenges for Design and Construction of Urban and Long-Distance Tunnels - NAT2024

    By Bernd Hagenah, Eric C. Wang

    New tunnels of significant alignment lengths such as mountain tunnels, base tunnels, as well as beneath urban centers pose unique environmental challenges. This paper highlights key environmental cons

    Jun 23, 2024

  • SME
    Health and Safety Challenges for China’s Mining Industry

    By Jerry C. Tien

    Mining in China dates back at least 4,000 years. Today, with no less than 103,000 metal/nonmetal mines and between 40,000 to 80,000 coal mines, China’s mining industry is undoubtedly the largest in t

    Jan 1, 2005

  • SME
    Gotthard-Base Tunnel, Section Faido Previous Experience With The Use Of The TBM

    By Martin Herrenknecht

    After the successful breakthrough at the end of 2006 of both TBMs into the multifunctional site Faido (MFS), in the middle of 2007 the two tunnel boring machines resumed the 12 km long section between

  • SME
    Ground Freezing A Proven Technology In Mine Shaft Sinking

    By Paul C. Schmall

    The link between artificial ground freezing and the mining industry stretches back more than 140 years, and across an ocean. Patented by the German scientist F.H. Poetsch in 1863, the technique is re

    Jan 1, 2007

  • SME
    Research Needs In Subsidence Abatement Over Abandoned Mines

    By Richard E. Gray

    The Office of Surface Mining Reclamation and Enforcement (OSM) is preparing an Abandoned Mined Lands Reclamation Control Technology Hand- book. (l) GAI Consultants, Inc. , recently prepared Chapter 2

    Jan 1, 1982

  • SME
    Design of the University Link Tunnels and Stations

    By Daniel N. Adams

    The University Link project extends Seattle?s light rail from downtown to University of Washington (UW). It includes 5.0 kilometers (3.15 miles) of twin-bored, 6.4 meters (21 feet) excavated diameter

    Jan 1, 2008

  • SME
    Predicted versus Actual Obstructions for Two Pipe-Jacked Tunnels of the Henderson CSO, Seattle, Washington

    By Dennis Molvik, Roberto J. Guardia, Brad Cowles, Rick Andrews, Robert A. Robinson

    A 220-meter (m) segment of the Henderson/ ML King Combined Sewer Overflow(CSO) consists of two 1.8-meter-inside diameter (I.D.) pipe-jacked tunnels that pass beneath Interstate-5 and the BNSF and UPRR

    Jan 1, 2005

  • SME
    Design and construction of a surface air cooling and refrigeration installation at a South African mine

    Impala Platinum?s No.16 Shaft mine is currently under construction and is expected to reach full production of 256 500 tons per month by 2014. Mining will start at 1 260 m below surface with a maximum

    Jan 1, 2009

  • SME
    Planning and Fast Track Tunnel Design in Historical Downtown Charleston

    By James McKelvey, Larry Drolet, Jason Swartz

    INTRODUCTION When divers discovered that sections of a tunnel housing the pipeline that conveys wastewater from the Charleston Peninsula to the Plum Island Wastewater Treatment Facility had caved

    Jan 1, 2005

  • SME
    Planning and Construction of the Metro Gold Line Eastside Extension Tunnels, Los Angeles, California

    By Jim Richards, Eli Choueiry, Brett Robinson, Amanda Elioff

    The Los Angeles Metro Gold Line Eastside Extension (MGLEE) extends Metro’s light rail system to the densely populated and growing East Los Angeles communities. Much of the 6 mile alignment consists of

    Jan 1, 2007