Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Massive Tires Keep The Industry Rolling
One of the biggest challenges for the mining industry is, quite literally, how to the keep the equipment rolling. There is a limited amount of companies that manufacture the 4.2-m- (14-ft-) tall, 5,
Jan 1, 2008
-
Special Shotcrete to Improve Open-Type TBM Performance Under Difficult Conditions
By Sohta Takatsu, Hachiroh Mizubata, Shigeki Kudoh, Kazuya Takekuni, Yoshinori Yamada
A special type of shotcrete is used to improve the performance of open-type TBM in difficult situations. The Hakamagoshi and Johana tunnels are expressway evacuation tunnels of 3.2 km and 5.1 km in le
Jan 1, 2001
-
Hydraulic Lifters Aid in Dragline Maintenance
Draglines are one of the largest land-based equipment moving across the earth. They typically ranging in size from2.5 to 6.5 kt (2,750 to 7,100 st). Their size, though, makes them difficult to mainta
Jan 1, 2004
-
Mine Health and Safety at the Turn of the Millennium
By Raja V. Ramani
As the new millennium approaches, it is appropriate to assess the progress that has been made in mine health and safety, a matter of concern to management, labor and government. One can hardly look a
Jan 1, 1999
-
Overcoming Challenges in the Construction of the Dublin Port Tunnel
By Tim Brick, Peter Jewell, Stephen Thompson, Simon Morgan
The $980m (€750m) Dublin Port Tunnel, Europe’s biggest urban highway tunnel project, was opened in December 2006. The culmination of this immense scheme is set to transform the environment, mobility a
Jan 1, 2007
-
Precious Metals Economics
By Paul Sarnoff
The economics of precious metals -- depending upon who is involved --could be the economics of hope, of fear, indeed of profit and perhaps survival. For those investors seeking capital gains in a puzz
Jan 1, 1981
-
Cathodoluminescence (Cl) Microscopy Application To Refractories And Slags
By R. E. Moore
Refractories are unique ceramic materials, which are used in large quantities in steel making furnaces, metal smelting vessels, and glass melting tanks. They are required to possess high thermal shock
Jan 1, 2001
-
South Interceptor Tunnel Construction Using a Lovat EPBM
By Dennis Molvik, Omar Fulton, Chris D. Breeds, Don Gonzales
This paper presents and describes the South Interceptor Parallel Phase III Contract C93012C, which involved construction of a nominal 2.7 m (9-ft) finished diameter sewer conveyance using both pipe ja
Jan 1, 2003
-
The Hallandsås Dual Mode TBM
By Werner Burger
The Hallandsås project with a long history, first started in 1991, is well known in the tunneling community. In the past it has been stopped twice for technical and environmental reasons. The third at
-
Discover mining?s history at Arizona Mining and Mineral Museum
While SME is hosting its Annual Meeting at the Phoenix Convention Center, Feb. 28 to March 3, one of the finest collections of mining history will be on display just 15 blocks away at the Arizona Mini
Jan 1, 2010
-
Battery Park Truck Sewer Emergency Tunnel Project
By Mark Rybak
On August, 31, 2006, Tropical Storm Ernesto hit the City of Richmond, Virginia. The Battery Park area was hit particularly hard, as flooding forced an evacuation of the area. A large sinkhole collapse
Jan 1, 2008
-
Research on the Roof Advanced Breaking Position of Large Mining Height Working Face in Shallow Coal Seam
Fully mechanized longwall mining with large mining heights (LMHs) in shallow-depth thick coal seams has been widely applied in Shenfu coalfield, China. Dynamic loading and rib spalling is serious when
Jul 28, 2020
-
State Summaries ? Arizona
By N. Niemuth
Strong demand for copper in developing nations such as China and India, plus the additional demand for industrial minerals to supply the Arizona construction market, brought about a record-setting yea
Jan 1, 2008
-
Geologists Add Value at Newmont’s Nevada Mines – Part Two
By Wayne Trudel, Eric Saderhold, Lloyd McEvers, Lori Clarke, Charles Lynn Bolin, Leroy Schutz
Editor’s note: This is the second part of a two-part series on how mine geologists added about 141t (4.53 million oz) at Newmont Mining’s gold operations in Nevada during 2003. Part one (ME, July2004
Jan 1, 2004
-
Challenges And Solutions To Designing Deep Excavations For Urban Transit Stations
By Ching-Liu Wu, John Hawley, Andrew H. Liu, James Chai
The Hatch Mott MacDonald/Bechtel Joint Venture team is designer and construction manager for the 5.25-mile Tunnel Segment of the overall 16-mile Silicon ValleyRapid Transit Project, which extends the
Jan 1, 2007
-
Latin Mining - Goldcorp?s New Peñasquito Mill
By Barry Olson
The Peñasquito deposit in Mexico is one of the largest grassroots precious metal discoveries to be developed in recent years. Goldcorp Inc. acquired the gold-silver-lead-zinc property with the acqui
Jan 1, 2009
-
The Kensico-City Tunnel Will Add Reliability to New York City’s Water Supply System
By Verya Nasri, Heather M. Ivory, Kevin Clarke, Eric Cole
Development of the New York City Water Supply System The New York City water supply system serves a population of almost nine million, including residents in neighboring counties. Peak day demands
Jan 1, 2007
-
Soil Deformation Analysis During TBM Excavation: Comparing Three Different TBM Technologies Used During the Construction of the Toulouse Metro Line B
By Richard Kastner, Emilie Vanoudheusden, Fabrice Emeriault, Jacques Robert
INTRODUCTION The subway line B of Toulouse (France) has been realized with three different tunnel boring machines (TBM) techniques: Contracts 2 and 5 are excavated with earth-pressure balanced TBM
Jan 1, 2007
-
Biosolubilization of Phosphate Ore
By Janine Acasi, Robert D. Rogers, Jonathan K. Trautman, Richard C. Cronn, James H. Wolfram
The demand for phosphate will continue into the future, because phosphate is currently irreplaceable as a plant nutrient and in many chemical applications. Phosphate is not recycled, so the supply mus
Jan 1, 1989
-
Innovative NATM Technology for Suburban Tunnelling Metro Section 306, Bochum, Germany
By Axel Nitschke, Josef Arnold
Bochum’s Underground Lot 306 was characterised by a confined site and unique tunnelling methods. A highly mechanized construction concept was developed to achieve high progress rates. Bespoke backup s
Jan 1, 2005