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Hole Deviations in Mining Operations: Types, Sources and Effects
By Sam Kangwa, Thomson Sinkala
Th e re are three basic types of hole deviations in long hole d ri l l i n g , n a m e l y collar i n g , alignment and tr a j e c t o r y dev i a t i o n s . In mining, the accur a cy in drilling has
Jan 1, 2004
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Technical Note - A Theoretical Model for Outbursting in Coal Mines
By Schlanger H. P
A theoretical model for gas outbursts in underground coal mines is as follows. An outburst is the structural failure ofcoal due to excess stress resulting from body forces caused by gas pressure gradi
Jan 1, 1985
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High accuracy .D airborne electromagnetic inversion method for banded iron formation and other geological settings
By D FitzGerald, S Jakica, R Paterson, J Silic
A new 2.5D airborne electromagnetic (AEM) algorithm has been developed by Intrepid Geophysics and Jovan Silic & Associates. The advantage of 2.5D (2D geology, 3D source) AEM inversion in 3D geolog
Jul 24, 2017
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Soil Displacement Caused By Pile Driving In Clay
By K. Rainer Massarsch
The effects of soil displacement caused by pile driving on adjacent piles and structures are discussed. A method is proposed to estimate the point of force equilibrium which makes it possible to calcu
Jan 1, 1989
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A mobile laboratory for nickel prospecting and drilling operations
This paper describes a mobile laboratory developed specifically for nickel prospecting, and which was designed to be operated by sub-professional staff in remote areas independently of established lab
Jan 1, 1970
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Development of an Audit Procedure to Diagnose the MOP Flotation Circuit at SQM Chile
By Carlos F. Perucca, Maria Virginia Ramírez A.
"Chile based SQM S.A., exploits potassium chloride rich salts at the Salar de Atacama, in northern Chile. The process includes the solar evaporation of natural brines existing in the Salar salt bed, f
Jan 1, 2004
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Influence of Trailing Cables on Magnetic Proximity Detection Systems Mining, Metallurgy and Exploration
By Jacob Carr, Chenming Zhou, Nicholas Damiano, James Noll, Jingcheng Li
Machine-related injuries are one of the major safety concerns in underground coal mines. Severe injuries and fatalities occur when a miner is struck, crushed, or pinned by mining equipment such as a c
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Papres - Metal Mining - Mining Practice at the Bell Mine Limestone Mine (With Discussion)
By Samuel M. Shallcross
The principal function of the Bell limestone mine, of the American Lime & Stone Co., at Bellefonte, Pa., is to supply raw material to the company's modern rotary kiln plant at Bellefonte. Because
Jan 1, 1937
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The Ediacara Mineral Field (8ccd4256-9862-4469-8844-6bf46021794c)
The Ediacara mineral field is classified as a Mississippi Valley type deposit with stratiform mineralization near the base of the Cambrian beds. Mineral deposition was contemporaneous with sedmentatio
Jan 1, 1963
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Application of borehole seismic and AE monitoring technique in the rock cavern
By M. Tanaka, K. Aoki, T. Mori, H. Morioka, K. Iwano, T. Kanagawa
To estimate the detailed characteristics of the rock around the cavern during excavation, new monitoring technique for dynamic properties of the rock has been applied. In this paper, micro-seismic mon
Jan 1, 2003
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Recovery of Cooper from Copper-Lead Dross
By Arthur A. F, MacKenzie I. H
Copper in zinc/lead sinter charged to the Imperial Smelting Furnace operated by Sulphide Corporation Pty Limited at Cockle Creek, New South Wales, concentrates in a complex lead dross which forms as t
Jan 1, 1983
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Flotation of Lithium and Beryllium Pegmatites (427a6d82-fb39-4583-b35b-3c6431d40947)
By Moskovits E. E
Spodumene was recovered from pegmatite by flotation in laboratory and pilot-plant tests using an anionic collector emulsion. A similar process applied to beryl pegmatite gave encouraging results.INTRO
Jan 1, 1963
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Reservoir Engineering – Laboratory Research - A Theoretical Description of Water-Drive Processes Involving Viscous Fingering
By P. van Meurs, C. van der Poel
From observations of the linear displacement of oil by water from a porous medium as visualized in transparent models, new insight into the mechanism of vircous fingering, as occurring in the case of
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Adoption of High Oxygen Bottom Blowing in Copper Matte Smelting: Why is it taking so long?
By Enzo Palumbo, Joël P. T. Kapusta, François Larouche
In light of the rapid deployment of bottom blowing smelting in China over the last ten years, one has to wonder why it has taken the copper industry so long to adopt ultra-high oxygen enrichment via S
Jan 1, 2015
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Analysis of the Controlled Deformation in Rock and Soil (A.DE.CO.-RS)–Tunneling Approach Performance of an Alternate Tunneling Approach in the Construction of 100 Kilometers of Tunnel for the Bologna to Florence High Speed Rail Line
By Silvano Morelli, Giovanna Cassani, Renzo Bindi, Antonio Nicola
More than 70 km of main line and service tunnels have been excavated to date for crossing the Apennines between Bologna and Florence. A new design and construction approach, known as Analysis of t
Jan 1, 2003
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Predicted versus Actual Obstructions for Two Pipe-Jacked Tunnels of the Henderson CSO, Seattle, Washington
By Dennis Molvik, Roberto J. Guardia, Brad Cowles, Rick Andrews, Robert A. Robinson
A 220-meter (m) segment of the Henderson/ ML King Combined Sewer Overflow(CSO) consists of two 1.8-meter-inside diameter (I.D.) pipe-jacked tunnels that pass beneath Interstate-5 and the BNSF and UPRR
Jan 1, 2005
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SME Research Forum - Mining Technology and Research Needs – Chemical Products Suppliers’ Perspective
The minerals industry consumes billions of dollars in raw materials, equipment, tools, services and chemicals. The industry, though, has turned overmuch of the research and development (R&D) for thes
Jan 1, 2000
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Palaeogene basin development in Devon
By J. L. Robson, C. M. Bristow
mass flow rates of particles and air (the loading ratio).
Dec 1, 1994
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Time-Dependent Behavior Of Rocks: Laboratory Tests On Hollow Cylinder
By Gilles Rousset
This paper presents laboratory experiments conducted on hollow cylinders samples. The advantage of such a geometry is to approach in situ conditions around cylindrical openings (lined galleries, boreh
Jan 1, 1989
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The Barmac Autogenous Crushing Mill - The New Development in Autogenous Crushing and Milling
The Barmac autogenous crushing mill is one of the most successful new comminution technologies to become available to the mining and industrial minerals industries in this decade. The Barmac au
Jan 1, 1990