Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Blast Design and Diagnostics Using, Portable Solid State, High-Speed Videography SystemsBy Laura Bustemante, Bruce Vandenberg, Fred Huettig
Recent advances in solid-state, field portable, fast framing video camera systems and PC based frame capture hardware now allow blast imaging up to 1000 frames per second. Up to 8 seconds of data can
Jan 1, 1998
-
Structural Controls on the Development of a Mineralised Fault ù Fracture Network, NW Otago, New ZealandVein swarms in metamorphic terranes such as the Otago Schist Belt, New Zealand provide evidence of past hydrothermal flow systems leading to fault initiation and reactivation. A major episode of hydro
Jan 1, 2002
-
Understanding Ground Vibrations and the Effects of Delay Intervals on Amplitude and FrequencyBy Randall M. Wheeler
The measurement and analysis of blast-induced ground vibrations are more complex than ever before. This is primarily due to the advancements made in microchip technology, mass storage utilities and th
Jan 1, 1992
-
An Applications Approach To Barrier Pillar Design For Improved Resource RecoveryBy John R. Koehler
Available barrier pillar design methods do not adequately account for overburden caving characteristics, the timing and magnitude of associated load transfers, the occurrence of unusual geologic featu
Jan 1, 1989
-
Borehole Geophone Method for Estimating Tunnel Blast Vibration PropagationBy Kyle Ott, Bernard Daly, Syed Haq, Douglas Anderson, Parsons Brinckerhoff
Drill and blast was determined to be the most cost-effective means of excavating the Raw Water Tunnel (RWT) for the Croton Water Treatment Plant in the Bronx, New York City. One of the major issues co
Jan 1, 2012
-
Improvements in Coal-Waste Disposal Since Buffalo CreekBy Kelvin K. Wu
A coal waste disposal dam failed on Buffalo Creek near Saunders, West Virginia, on February 26, 1972. This accident resulted in the loss of 125 lives, left over 4000 people homeless, and resulted in m
Jan 1, 2006
-
Design Principles for Optimizing an Established Survey Slope Monitoring SystemBy N. Mphathiwa
When slope angles are designed during open pit optimization, there is a risk factor applied in steepening the slopes. The steepening of slope angles has implications for the safety and economics of th
Jan 1, 2014
-
RI 4493 The Leadville Drainage Tunnel Lake County, Colo.By Robert A. Elgin
The Leadville mining-district (fig. 1) covers approximately 8 square miles adjacent to Leadville, the county seat of Lake County, Colo. It is famous for its large production of rich ores containing zi
Jan 1, 1949
-
Implications of the New Legislative Environment for the Mining IndustryThe new legislative regime applying to the mining industry has been in force for nearly two years. However the parameters for the permits required under the Crown. Minerals Act 1991 and the resource c
Jan 1, 1993
-
Data Evaluation for Sustainable Development IndicatorsBy S. Möllerherm
"The evaluation of data and information provided by the existing traditional indicators in sustainability assessments is most important. Therefore the Institute of Mining Engineering I from the RWTH A
Jan 1, 2005
-
Thinking Outside The Box- New Ways To Close Old Tailing BasinsBy B. Anderson, P. Churak, S. Dewar, A. Johnson, P. Eger
Although vegetation can be successfully established on fine taconite tailings, innovative approaches are needed to reclaim the coarse tailings used for dam construction. Through a series of cooperati
Jan 1, 2002
-
Major Silver Deposits Of Utah: Geochemical And Geological Reasons For World -Class High And Low Grade Systems (afe76188-1e20-4ed9-a905-87de5b05bfe4)By L. P. James, W. W. Atkinson
Utah has produced about one billion troy oz. (31.7M tonnes) of silver, more than any U.S. state except Idaho. Several very high grade ore systems, now closed, occur within large polymetallic limestone
Jan 1, 2000
-
NAT Attendees Get A Glimpse Of The Future Of Underground Space UseIn 1950, about a third of the world?s population lived in cities. That figure has steadily risen throughout the following decades. Now it is believed that about 60 percent of the estimated 8.1 billi
Jan 1, 2008
-
IC 8214 Mining Methods And Costs, Kimballton Limestone Mine, Standard Lime And Cement Co., Giles County, Va.By N. A. Eilertsen
Procedures of mining high-calcium limestone underground at the Kimballton mine of the Standard Lime and Cement Co. in Giles County, west-central Virginia, are described. Drilling and blasting procedur
Jan 1, 1964
-
OFR-29(1)-82 Visual Attention Locations For Operating Continuous Miners, Shuttle Cars, And ScoopsBy Mark S. Sanders
This report presents recommended visibility requirements for continuous miner, shuttle car and scoop operations and details the methodology used to generate them. A task analytic approach was used to
Jan 1, 1981
-
Doing More with What We Already Know – Improving the Efficiency of Minerals ProcessingBy Joe Pease
"The demand for minerals and metals is increasing. Head grades of ore bodies are dropping. Remaining ores are becoming finer grained, more complex, and more logistically challenging. Mineral processin
Jan 1, 2015
-
RI 4721 A Study Of Certain Uncommon Minerals Found In The Pacific NorthwestBy A. J. Kauffman Jr.
The Petrographic Section of the Bureau of Mines, Northwest Electrodevelopment Laboratory, Albany, Oreg., annually examines thousands of minerals and rocks. Samples are received from mining, engineers,
Jan 1, 1950
-
Multivariate Geostatistical Simulation at Red Dog Mine, Alaska, USABy Oy Leuangthong
Red Dog mine is the world's largest Zn producer. The deposit consists of sulphide ore zones in sedimentary exhalative (sedex) deposits, and is characterized by the presence of multiple metals and
May 1, 2004
-
Effect of inorganic chloride on spontaneous combustion of coalBy Y. I. Yang, Y. -B. Tang, D. -J. Ma
Chlorine-containing minerals are commonly present in coal. Associated minerals such as pyrite can undergo exothermic reactions. Consequently, it is of great significance to study the effect of inorgan
Jan 1, 2015
-
Detección de filtraciones contaminantes mediante métodos geofísicos en la industria mineraBy Gloria Fernández
La contaminación por drenaje ácido de mina se considera como la responsabilidad ambiental y económica más grande que actualmente enfrenta la industria minera. En ese sentido, se delimita las áreas afe
Aug 25, 2002