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Ground Control Practice at Leeville Underground Mine
By Changshou Sun
The geotechnical properties of mining zones at Leeville Underground mine (or simply called Leeville mine through this paper) are different from one zone to another. The typical ground condition is poo
Jan 1, 2013
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Geology Of The Central City Area, Colorado - A Laramide Mining District
By Paul K. Sims
The Central City district is one of several adjacent mining areas in the Front Range, Colorado, that contain precious metal-bearing sulfide veins of Laramide (Late Cretaceous and early Tertiary) age.
Jan 1, 2013
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Insurability of Unknown Postclosure Liabilities
By C. Kunze
ABSTRACT Although closure sureties cover works that are carried out during the existence of a mining company, certain liabilities are not known when the surety is established and become apparent only
Jan 1, 2013
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Goldex, the GRG Jewel (f7d6adb6-5ccd-46eb-a997-fe635a7b545b)
By G. Belzil, F. Robichaud, M. Fullam
ABSTRACT The Goldex mining and milling complex is operated by Agnico-Eagle and is located in the Abitibi greenstone region of northwestern Quebec, Canada. Commercial production started in 2008. Averag
Jan 1, 2013
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The Statistical Analysis of Site-Specific Blasting Data Using Prediction Intervals and Tolerance Intervals
By Perry Sisk
In order to protect nearby structures during a blasting project, a peak particle velocity limit is often stipulated by a government agency or the owner of a particular structure. At the start of a bla
Jan 1, 2013
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What Is The Best Energy-Delivery System For Hand-Held Stope Drilling And Associated Equipment In Narrow-Reef Hard Rock Mines? ? Synopsis
By P. J. Petit
Changing mining conditions, legislative issues, rising costs, and the constrained supply of skills and electricity in South Africa, have been some of the criteria forcing mine operators and engineers
Jan 1, 2013
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New Orleans Levee Improvement Project: An OPA Contender
By Filippo Leoni, Wesley Schmutzler
"The LPV-111 East Back Levee Improvement Project lies along the Gulf Intracoastal Waterway (GIWW) in Orleans Parish of New Orleans, La., and is an essential component of the New Orleans Hurricane Prot
Jan 1, 2013
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Study on the Hydraulic Ash-Slag Cementitious Composites (HA-SC) Solidification of Dredged Sludge
By Xinghua He, Shujing Zhu
"In this paper, the chemical composition, the content and the leachability of heavy metals in dredged sludge are tested and analyzed. It is shown that the leachability of Pb and Cr exceeds the leachin
Jan 1, 2013
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Infrared Radiation Properties of CuO-ZnO-Based Sintered Material Prepared for Energy-Saving Coating
By Chao Lian, Hongxu Li, Hao Bai, Wei Wei
"Application of high-emissivity coating on inner walls in industrial furnaces increases the furnace thermal efficiency. The coating with high emissivity strengthens radiation heat transfer in the furn
Jan 1, 2013
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Geophysical Methods For Site Characterization For Marine Foundations
By Richard E. Sylwester
Evaluating surface and subsurface conditions for marine foundations (bridges, causeways, terminals, etc.) is often done with a limited amount of data. Subsurface information for these projects is pri
Jan 1, 2013
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From Theory to Practice: Designing For Situation Awareness to Transform Shovel Operator Interfaces, Reduce Costs, And Increase Safety
By E. Onal, C. Craddock, A. Chapman, M. R. Endsley
ABSTRACT Mining equipment operators must interpret and respond to complex information delivered by technology-centric rather than user-centric systems. The ability to achieve high situation awareness
Jan 1, 2013
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A New Way of Looking at Risk and QD Compliance
By Lon Santis, Michael Swisdak, John Tatom
The Institute of Makers of Explosives (IME) and A-P-T Research, Inc. (APT) have developed a quantitative risk assessment tool called IMESAFR (IME Safety Analysis for Risk) for managing risk from vario
Jan 1, 2013
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Monitoring of Dynamic Borehole Pressures
By B. Papilon
Dynamic pressures during blasting can affect performances of both electronic and non-electronic detonators. Boreholes can develop tremendous amount of pressures during blasting. The effect of such ele
Jan 1, 2013
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Constant Permeability of Fe-B-Si-Nb Crystal-Glassy Composite Bulk Alloy by B2O 3 Flux Melting and Casting
By Teruo Bitoh, Shogo Izumi
"The effect of B203 flux melting on the structure and the soft magnetic properties of the (Feo.1sBo.20Sio.os)96Nb4 bulk metallic glasses prepared by casting has been investigated. The ringshaped bulk
Jan 1, 2013
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Underwater Sound Attenuation In Construction Projects: Applying Science To Pile Driving Permits
By Alan Christopherson
Nearshore construction projects often require installation of steel piles and specific methodologies of installing piles may adversely affect nearby species of concern. Water is an uncompressible med
Jan 1, 2013
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Design Of The Marine Foundations For The Skyway Project Of The San Francisco Oakland Bay Bridge
By Gerry Houlahan
The east span of the 3.5 km long SF-Oakland Bay Bridge is supported by different types of foundations along its span. Starting from the west, its first 460 m section comprising twin concrete box-girde
Jan 1, 2013
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Exploration Company Teams With Atlas Copco For Stealth Rig For Sensitive Ecologies
Energold Drilling Corp. is a leading specialty drilling company servicing the mineral and energy sectors in the Americas, Africa and Asia. Energold specializes in mineral exploration in remote locatio
Jan 1, 2013
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Autogenous grinding mills for diamond liberation
By J. E. Danoczi
ABSTRACT A diamond processing plant is being designed for the Star–Orion South diamond project in central Saskatchewan. Key to the plant is diamond liberation, which occurs in the comminution section
Jan 1, 2013
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Gold Passivation: Reconciling Cyanidation Circuit Performances Using Laboratory Testing
By A. Azizi, P. Blatter, A. Bouajila
ABSTRACT In-situ monitoring of gold dissolution by means of a rotating electrochemical quartzcrystal microbalance unveiled dramatic decreases in gold leaching from sulphide-rich ore after 360 minutes
Jan 1, 2013
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Electric Load-Haul-Dump Machines: Real Alternative for Diesels?
By J. Paraszczak
ABSTRACT Diesel-powered loaders are a pillar of modern underground metal mining. As these mines are getting deeper and hotter and the emission regulations stricter, ventilation costs are soaring, affe
Jan 1, 2013