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IC 6898 Costs Of Trucking And Packing Ore In Western Gold-Mining Districts ? Introduction
By 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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Probable Cost Estimating and Risk Management
By John Reilly
Costs of complex/underground projects have been consistently underestimated and delivery on time and on budget has been problematic. This has been attributed, to inadequate cost estimates and unidenti
Jan 1, 2008
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Viscoplastic behaviour of and damage to rock related to the design of underground waste depository cavities
By A. Bouvard, N. Hoteit, E. Boidy, F. Pellet
In the context of the construction of an Underground Research Laboratory devoted to the feasibility studies of radioactive waste deposits, it appears of the utmost importance to study the long-term be
Jan 1, 2003
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Coarse Gold Recovery Using Flotation in a Fluidized Bed
By Eric Bain Wasmund, Lance Christodoulou, Julio Jairo Carmona Franco, María Fernanda Castillo, Jose Concha
"A number of technologies are in practice for selectively removing coarse gold from conventional grinding circuits. These circuits are often designed so that the grinding mill output is size classifie
Jan 1, 2015
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RI 3170 Washability Studies- Warrior View Mine, Tuscaloosa, AL
By H. L. Anthony, A. C. Richardson, G. D. Coe
"INTRODUCTION The Warrior View mine of the Seaboard Coal Corporation is located in Tuscaloosa County on the Warrior River about 14 miles northeast of Tuscaloosa, Ala. The Brookwood bed at this point y
May 1, 1932
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The Halloysite Clays of Northland, New Zealand
By R B. Evans, M G. Townsend
In Northland, New Zealand, localised large deposits of halloysite clay have been produced by in-situ alteration of rhyolite volcanics of Pliocene or Pleistocene age, which were erupted through pre-Pli
Jan 1, 1990
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Um Diagnóstico Dos Cursos De Graduação Em Engenharia De Minas E Realização De Um Comparativo Com Cursos De Outros Países Com Grande Produção Mineral
By Júlia Guimarães Sanches
O curso de Engenharia de Minas sofreu uma expansão, juntamente com todo o ensino superior no país, por volta de 2005. O objetivo do presente estudo é avaliar as características dos cursos do país e re
Oct 30, 2017
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Variations between Tectono-Sedimentary regimes during collision zone evolution: The Markham Suture Zone, Papua New Guinea
By Crook KAW
New sedimentological and biostratigraphic data indicate that the Leron Formation in the Markham Suture Zone, Papua New Guinea (PNG) represented Pleist- ocene alluvial fan-delta deposition in shall
Jan 1, 1991
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Regional geochemical mapping for earth science and environmental studies
By R. B. Barlow, J. A. C. Fortescue
Originally developed for use in mineral exploration, regional geochemical mapping based on stream (and lake) sediment sampling is showing broader application in other areas of the earth sciences and i
Jan 1, 1980
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Investigation of Stability of an Unconventional Water-Obstruction Gate Pillar with a Curved Boundary in Mining Inclined Ultra-Thick Coal Seams
Because of complex geological environments, a number of coal reserves occur in inclined or dipping coal seams in certain parts of the world. Longwall top coal caving using split-level a singleentry pa
Jan 7, 2020
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Large Excavations in Weak Mudstone for the Porgera Mine Plant Development
The plant and processing site at Porgera has been built on a levelled mudstone ridge about lkm E of the mine. Excavation of 7xl06m3 of soil and rock was necessary to achieve the required area. The
Jan 1, 1991
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Coping with Boulders in Soft Ground TBM Tunneling
By Peter B. Dowden, Robert A. Robinson
Boulders, frequently found in tunnels excavated through soils, can pose major problems for full face TBMs in terms of slowing or halting the tunnel advance, cutter damage, and abrasive wear. The paper
Jan 1, 2001
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RI 9425 - Relationship of Coal Seam Parameters and Airborne Respirable Dust at Longwalls
By S. J. Page, R. A. Jankowski, J. A. Organiscak
The U.S. Bureau of Mines investigated the relationship of bituminous coal seam parameters and the amount of airborne respirable dust generated at longwalls. Dust and coal samples were obtained from 20
Jan 1, 1992
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IC 6877 Progress Report On Investigation Of Detachable Rock-Drill Bits - Introduction
By McHenry Mosier
The object of this investigation is to determine the field for the use of detachable bits in metal mines of the United States by correlating the data developed through the experience of mines using th
Jan 1, 1936
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Damage To Initially Bent Piles ? Synopsis
By B. B. Broms
A method for calculating the bending moment induced in misaligned or bent piles is described, The maximum bending moment varies with the angular rotation between the pile segments, the coefficient of
Jan 1, 2010
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Haul Truck Safety And Virtual Environments Training
By A. Schaum
On average, there are approximately 10 fatal haul truck accidents per year. The most common causes for haul truck accidents include mechanical problems, inadequate training and insufficient road/berm
Jan 1, 2008
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Annual Report ? For The Year Ended 30th June, 1992
[COUNCIL FOR 1991/92 President R.D. Beck President Elect JP. Hoffman Vice Presidents Senior Junior Dr H. Scott-Russell J.A. Cruis
Jan 1, 1992
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An engineering classification for rocks and rock masses
By T. Ramamurthy
ABSTRACT : Rock mass classifications RMR, Q and GSI do not suggest decreasing modulus ratio with the decrease in the quality of rock. These have been linked to joint factor, Jf , for better predictio
Jan 1, 2003
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Mining Methods at Mount Morgan Limited
This paper gives a general description of mining operations at the Mount Morgan Open Cut. Certain features such as blast hole diamond drilling, which may be of particular interest, have been described
Jan 1, 1952