Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Pre-Excavation Drilling and Grouting for Water Control and Ground Improvement in Highly Variable Ground Conditions at the Arrowhead Tunnels Project
By Brian Fulcher
The Arrowhead Tunnels Project represents the final portion of a 70 km (44-mile) long water conveyance facility that will bring up to 28 m3/sec (1,000 ft 3/sec) of water into Southern California. The 1
Jan 1, 2008
-
Restoration Of Gold Mill Tailings, Black Hill, South Dakota ? Introduction
By F. D. Fox
Abandoned mill tailings deposits can be found scattered throughout the Northern Black Hills of South Dakota, indicative of past mining activities that originated during the great gold [ERRATA SHEE
Jan 1, 1984
-
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
-
Strategies for Recycling of Primary and Secondary Resources for Germanium Extraction
By Pratima Meshram Abhilash
In this review, availability of germanium in primary and secondary resources and its recovery from these resources are presented. With nearly 40% germanium consumed in fiber optics and scarcity of res
Jan 16, 2022
-
Economic Conditions Help Minnesota’s Iron Ore Mining
By William R. Yernberg
What a difference a year makes. One year ago, the iron mining industry and the steelmaking industry in the United States were in trouble. Many companies were in bankruptcy, and talk of plant and mine
Jan 1, 2004
-
Pre-conditioning/Pre-excavation Grouting of the Soils Prior to Tunneling Below Highways and Railways: Case Histories from the Past Decade
By Alex Naudts
Pre-excavation grouting is a predictable and reliable technique performed to prevent or minimize settlement in advance of, or during the tunneling operation. It safeguards the infrastructure above the
Jan 1, 2008
-
Application Of Background Oriented Schlieren (BOS) For The Qualitative Analysis Of Flow Through A Regulator
The schlieren technique describes an optical analysis method designed to enhance light distortions caused by air movement. The ability to visualize air flow has significant implications for analyzing
Jan 1, 2011
-
Helmet-CAM: Strategically Minimizing Exposures to Respirable Dust Through Video Exposure Monitoring Mining, Metallurgy and Exploration
By J. R. Patts, A. B. Cecala, E. J. Haas
Exposure to respirable crystalline silica (RCS) remains a serious health hazard to the US mining workforce who are potentially exposed as various ore bodies are drilled, blasted, hauled by truck, crus
-
Helmet-CAM: Strategically Minimizing Exposures to Respirable Dust Through Video Exposure Monitoring Mining, Metallurgy and Exploration (5d754317-832a-4d3c-a636-cba13cd0e0a9)
By J. R. Patts, A. B. Cecala, E. J. Haas
Exposure to respirable crystalline silica (RCS) remains a serious health hazard to the US mining workforce who are potentially exposed as various ore bodies are drilled, blasted, hauled by truck, crus
-
Development Of High-Efficiency Hydraulic Separators
By Karen Mikkola, Gerald Luttrell, Jaisen Kohmuench, Glen Oswald, Michael Mankosa, Tracy Westerfield
Hydraulic separators are commonly used for particle size classification and gravity concentration of minerals and coal. Unfortunately, the efficiency of these processes can be quite low due to poor eq
Jan 1, 2005
-
Tunneling Through Cobbles in Sacramento, California
By Joel Nonnweiler, Rafael Castro, Ross Webb
The three thousand foot long 66-inch diameter Folsom East Interceptor Section2B was completed accident free, on time and under budget with no measurable surface settlement. The tunnel passed through n
Jan 1, 2001
-
Analysis of Fall-Related Imminent Danger Orders in the Metal/Nonmetal Mining Sector Mining, Metallurgy and Exploration
By Mahiyar Nasarwanji, Jonathan K. Hrica, Jonisha P. Pollard, Lydia M. Kocher, Brianna M. Eiter
Within the metal/nonmetal mining sector, fall-related incidents account for a large proportion of fatal and non-fatal injuries. However, the events and contributing factors leading up to these inciden
-
A Dissolution Kinetic Model For Metal Powders A Case Of Varying Surface Area
By Kenneth N. Han, Peter Nam-soo Kim
A kinetic model for leaching of particulate metals in a batch system has been developed. The leaching mechanism has been analyzed by solving a series of ordinary differential equations relating hetero
Jan 1, 2005
-
Estimating Future Energy Requirements - Concept And Method
By H. J. Bickel
This paper is concerned with general concepts and statistical devices used in projecting overall energy requirements. Particular emphasis is given to the use of individual end- use markets as an appro
Jan 1, 1962
-
Construction Aggregates Industry Trends Inspire Innovation
By Bruce W. Woolpert
During the SME Board of Directors’ midyear meeting in Monterey, CA Aug. 25, I discussed trends in the construction aggregates industry. Many construction-material suppliers may not have yet fully int
Jan 1, 2002
-
Air filtration technology for respirable dust control in room-and-pillar mining
By Y. P. Chugh
A novel dry and wet air dust filter concept was conceived and demonstrated successfully at two mines. A steel-wool and a fiberglass filter, suitable for underground use were identified through laborat
Jan 1, 2009
-
Exploration Review (0aa637d4-de3b-49fc-9275-003815a21e5a)
By D. R. Wilburn
This summary of international mineral exploration activities for 2008 draws upon available information from industry sources, published literature and U.S. Geological Survey (USGS) specialists. The s
Jan 1, 2009
-
Design of Shallow Tunnels for Washington Dulles International Airport People Mover
By Frank P. Frandina, Diane R. Hirsch, David P. Field, Colin R. Weeks
To accommodate growth in air service and to follow the Master Plan for long-term airport development, the Metropolitan Washington Airports Authority established thed2 Development Program at Washington
Jan 1, 2005
-
Mining 4.0—the Impact of New Technology from a Work Place Perspective Mining, Metallurgy and Exploration
By Joel Lööw, Jan Johansson, Lena Abrahamsson
Industry 4.0 offers new possibilities to combine increased productivity with stimulating workplaces in a good work environment. Used correctly, digitalization can create attractive jobs in safe contro
-
Mining 4.0—the Impact of New Technology from a Work Place Perspective Mining, Metallurgy and Exploration (326a66bb-6516-4f47-8d9f-11f095fb3603)
By Joel Lööw, Jan Johansson, Lena Abrahamsson
Industry 4.0 offers new possibilities to combine increased productivity with stimulating workplaces in a good work environment. Used correctly, digitalization can create attractive jobs in safe contro