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Caracterización hidrogeológica de la microcuenca Tres Ríos para la construcción de reservorios artesanalesBy Albert H. Herrera
La microcuenca Tres Ríos, está ubicada en el distrito de Cajamarca, Región Cajamarca y al NW de la ciudad de Cajamarca, abarcando el centro poblado de Chámis, Corizorgona, Collpayoj y parte de Ronquil
Sep 21, 2015
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OFR-15-74 Standardization Of Controls For Underground Electric Face Equipment - Section 1. Introduction - BackgroundBy William G. Hedling
The operation of electric face equipment in underground coal mines has proven to be extremely hazardous to mining personnel, including equipment operators and others working in the vicinity of active
Jan 1, 1974
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Drilling - Equipment, Methods and Materials - Computerized Drilling ControlBy F. S. Young
Previous laboratory and field experimentation has demonstrated the effect of several variables on drilling rate.1-5 These results have been incorporated into optimization theories6-" for the purpose o
Jan 1, 1970
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Método simplificado para el cálculo de equipos y costos en operaciones de mineria a cielo abiertoBy Miguel Gómez Yáñez
El presente texto describe el método de cálculo que se utiliza en una operación a cielo abierto para determinar flotas de equipos de perforación, carguío, acarreo y equipos auxiliares en un solo progr
Sep 12, 2011
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Effective Mining Project Management SystemsBy C Adams
Reports of delays and cost blowouts in major study and construction projects are becoming increasingly prevalent in the resources industry. This is mainly being attributed to an escalating cost enviro
Jan 1, 2006
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Internal Air Temperature Measurements in Tyres-A Major Advance in Earthmover Tyre Pressure ControlTyre costs constitute 20-40 per cent of the operating cost of large haulage trucks, and tyre pressure maintenance is an important factor in minimizing costs.In the past, control over the hot (built-up
Jan 1, 1979
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Supervisory Control of Bass Strait Oil and Gas Production (450e3b8f-9404-4d30-9400-edb9f950a46d)Esso-BHP have installed a production supervisory control system that is presently controlling the offshore oil and gas facilities on the Barracouta and Marlin platforms from an onshore master station.
Jan 1, 1971
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Data Center Para AutomaçãoBy Márcio Aurélio dos Santos
A Automação Industrial utiliza de forma intensiva os mesmos equipamentos e softwares de TI como servidores, historiadores, switches, firewall, dentre outros. No entanto, são poucas as áreas de automaç
Jul 30, 2018
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Libros gráficos en la gestión de mantenimientoBy Víctor Fidel
Desde 1963 Yanacocha es una empresa minera aurífera con operaciones en la sierra norte del Perú que opera bajo la modalidad de tajo abierto mediante el proceso de lixiviación. Sin embargo, el incremen
Sep 19, 2006
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North American Tunneling 2010 Conference HighlightsEven though the economy of the United States remains in recession ? or not, depending on which economist you listen to ? muicipalities still need improved transportation, water and wastewater transit
Jan 1, 2010
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Journal: Junction Chamber Blasting November 22,1999By Edward Walter
Rock excavation for tunneling projects occurs on a regular basis in the Cleveland area. These tunnels are being constructed to increase the capacity of the sanitary sewer system. Controlled blasting m
Jan 1, 2001
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De Beers, Sandvik Team Up On Underground AutomationDe Beers? Finsch diamond mine began operation in the 1960s as a surface project using the latest technology available. During the 1990s, the operation, located about 160 km (100 miles) west of Kimber
Jan 1, 2008
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IC 6898 Costs Of Trucking And Packing Ore In Western Gold-Mining Districts ? IntroductionBy E. D. Gardner
Ore and concentrate are transported on, the surface at western mining districts by (1) railroads, (2) surface trams, (3) aerial trams, (4) trucks, and (5) wagons, and (6) on the backs of animals. T
Jan 1, 1936
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Selección de sostenimiento en excavaciones minerasBy Salas I. Ricardo
El presente trabajo revisa los principales métodos de sostenimiento minero para evaluar la estabilidad de una excavación de forma rápida y así proponer una metodología que considera algunos aspectos d
Nov 8, 1984
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A Peculiar Type Of Intercrystalline Brittleness Of CopperBy Henry Rawdon
THE following note describing the behavior of copper under rather unusual conditions is offered here for its suggestiveness rather than as a complete study of the question. The examinations described
Jan 2, 1920
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Assessing Risk and Capital Investment Criteria in Mining ProjectsIn the late 1970's and early 1980's a considerable number of large scale open pit mines were developed in N.S.W. and Queensland. At the time these mines were planned, the industry was char
Jan 1, 1990
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OFR-164-82 Engineering Evaluation Of Radon Daughter Removal TechniquesBy Donald B. Lindsay
This report presents the findings of an investigation into the characteristics of a number of techniques for cleaning ambient air with special emphasis on their applicability to the removal of the sho
Jan 1, 1978
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Small Scale Carbonization and Coke Studies in Coalfield Exploration and Mine DevelopmentReliable and discriminating small, laboratory scale methods of study have been developed and used successfully in the critical evaluation and interpretation of the carbonization characteristics of a w
Jan 1, 1969
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Case History: Foundations For The New Mississippi River Bridge, St. LouisBy Paul J. Axtell
This case history describes the foundation design and construction for the New Mississippi River Bridge, presently under construction in St. Louis, Missouri. The 1,500 ft (457.2 m) main span of the c
Jan 1, 2011
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Effect of the strain rate and water stauration for the tensiles strength of rocksBy I. Matsunaga, K. Aoki, W. -j. Jung
Blasting is widely used in mining and basic construction because of its speed and economy to destroy the rocks. Blasting has the advantages of reduced excavation costs and shorted construction time wh
Jan 1, 2003