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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
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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
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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
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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
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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
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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
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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
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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
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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)
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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