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Alternative to parameterization in finding a series of maximum-metal pits for production planningBy H. Sevim
In long-term open pit production planning, a series of nested and maximum-value pits is usually generated first. These pits are then considered as possible pushbacks over a number of planning periods.
Jan 1, 1996
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In-Pit Crushing And Conveying At Highland Valley Copper (ed32fdb4-81a8-44a9-9ceb-c2871da4e7e5)By A. D. MacPhail
The Highland Valley Copper partnership was formed in July 1986 and was the logical result of a mine with a large ore reserve but no adequate mill, and a mine with a large, modem mill but dwindling ore
Jan 1, 1993
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Environmental Aspects Of ShiploadingBy Leonard Sugin
The requirements of today's and tomorrow's markets led to a new generation of facilities which handles large tonnages annually, loading them into larger vessels, at higher rates, efficiently
Jan 1, 1977
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A Case Study Of The San Miguel Lignite Mine ? IntroductionBy D. J. Rose
The San Miguel Mine is owned by San Miguel Electrical Cooperative, Inc. and operated by Atascosa Mining Company, a wholly-owned subsidiary of Morrison-Knudsen Company, Inc. This multiseam, single-zone
Jan 1, 1984
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Improving Quality Control at Alunorte Using a Process Information SystemBy J. A. Dlas Lima
Alunorte is a metallurgical-grade alumina refinery located in northern Brazil. This plant which was designed to produce 1.1 million mtpy of calcined alumina, started operation in July 1995. A proce
Jan 1, 2000
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Bivariable Planetary Cutter-Head Concept for Shaft BoringBy D. Gu
Breakage of rock by machine is one of the major methods of excavation. With the development of modern engineering techniques, the advantages of using this method have become even greater. Improving ef
Jan 1, 1995
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US soda ash industry - the next decadeBy Dennis S. Kostick
Introduction Soda ash is known chemically as sodium carbonate, an important inorganic chemical. It has been produced for several centuries by processing certain vegetation and minerals. The US soda a
Jan 10, 1985
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Automatic identification in miningBy C. Patrick, D. Puckett
The feasibility of monitoring the locations and vital statistics of equipment and personnel in surface and underground mining operations has increased with advancements in radio frequency identificati
Jan 1, 1999
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Polymer Configuration And Its Importance During The Flocculation Sequence (94e8719c-8690-4feb-b1d9-f4b27d9f1c6e)By D. A. Stanley
The Bureau of Mines has developed an equation which describes the dewatering of clay slurries with polyethylene oxide. This dewatering equation is An _ kC + b where n, k. and
Jan 1, 1989
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Materials Transport in Mineral Processing SystemsBy A. M. Abouzeid, R. Hogg
Materials transport is involved in all phases of mineral processing. Bulk transport is necessary for moving materials between unit operations and through processing devices such as grinding mills. Dif
Jan 1, 1989
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A Comparison of Grouting Through Segment Ports Versus Grouting Behind the Tailcan of Two Segmentally Lined Rock Tunnels—Coxwell Sanitary Bypass Tunnel Project in Toronto, ON and Westerly Storage Tunnel Project in Cleveland, OH - RETC2021By William Hodder, Lisa Smiley, Ehsan Alav
The Don River & Central Waterfront Coxwell Sanitary Bypass Tunnel (CBT) Project in Toronto will extend approximately 10.5 km and be lined using a precast concrete segmental tunnel liner with an intern
Jun 13, 2021
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Frictional Stability of Heterogeneous Surfaces in ContactBy Neville G. W. Cook, John Kemeny
Utilizing the principles of elastic-brittle fracture mechanics, stress-displacement relationships are derived for an elastic solid containing a slip plane consisting of various configurations of colli
Jan 1, 1986
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Lead, Tin, And Precious-Metal Mineralization In The U.S. Virgin Islands - IntroductionBy H. V. Alminas
The U.S. Virgin Islands consist of three major islands (St. Thomas, St. John, and St. Croix) and some 50 smaller islands that are located primarily along the coasts of St. Thomas and St. John. St. Cr
Jan 1, 1987
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Light and Electric Potential Induced Reversible Wetting on Structured SurfacesBy John Ralston, Rossen Sedev, Nicola Richards, Quinn Anthony, Geoffrey Reynolds
Derivatised 2,4-diketopyrimidine groups have been anchored to planar gold surfaces as self¬-assembled monolayers (SAMs) for chemical and photochemical studies. Three derivatives, 5-methyluracil (thymi
Jan 1, 2003
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On the Management of Gangue Minerals in the Flotation of Platinum Group MineralsBy K. C. Corin, B. McFadzean, J. G. Wiese
The Bushveld Complex of South Africa contains almost 90% of the world’s reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to
Jan 1, 2019
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Condemnation Valuation: The Taking Of Mineral Bearing Lands (PREPRINT NUMBER 89-149 )By Jr. Mason
Eminent Domain is the power of the government or municipality to take property for public use without the consent or acceptance of the owner. Typically the agency taking the property will make an offe
Jan 1, 1989
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Mineralogy and Processing Characteristics of Archean Gold Ores from Western AustraliaBy Robert C. Dunne, Jeffery P. Vaughan
The Archean ores of Western Australia are in total the largest producers of gold in Australia. In addition to numerous small and medium sized deposits, the province also contains the giant Kalgoorlie
Jan 1, 1987
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Quality Control in the Grouting of Saturated Fractured RockBy Yu. A. Polozov, V. A. Lagunov, O. Yu. Lushinkova, Yu. I. Svirskiy, Eh. Ya. Kipko, Roy A. Williams
The reliable quality assessment of grouting operations is one of the key issues in establishing impermeable grout curtains around shafts, drifts and tunnels. Reliable opera¬tional information on the d
Jan 1, 1993
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Carbon-Emission Calculation of Large Shield Tunneling—Based on Data-Mining MethodologyBy Xuehui Zhang, Yun Bai, Qiaosong Li, Huiming Wu
"Construction activities account for a large share of the global Greenhouse Gas emission. In the past 10 years, project decision-makers and researchers have been paying more attention to the carbon em
Jan 1, 2016
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Red Mountain No. 3 - Discovery Of The Ore Body, Ouray County, ColoradoBy James Matlock
The announcement of a minable reserve of 13.6 Mt (16 million tons) averaging 0.9 g/t (0.027 oz per ton) Au and 2.4 g/t (0.71 oz per ton) Ag for the open pit-heap leach reserve at Red Mountain No. 3 in
Jan 1, 1990