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Cost - Benefit Analysis of Using Electronic Detonators in a Large Carboniferous Limestone Quarry in the North of England
By Bill Birch, Toby White, Ian Brown
costs/benefits of electronic detonators and measure their effects on primary crusher productivity. 9 blasts (3 shock tube blasts, 6 electronic blasts). Measured electricity consumption & primary crus
Feb 1, 2020
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Cost Accounting for Coal Mines
By J. A. Bullington
Mr. Chairman and Gentlemen: Some of you men may know who are familiar with what we have been doing in the C. F. & I. the last three years, that we have revamped our entire method of cost accounting fr
Jan 1, 1931
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Cost Analysis Computer Model For Uranium In-Situ Leach Mining - Objective
Estimate costs for projected uranium in-situ mining operations. Approach Develop a computer model and an associated data base which will allow users to supply data applicable to a specific mining
Jan 1, 1982
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Cost Analysis for the Design and Operation of Sublevel Open Stoping
By P. K. Chatterjee, G. D. Just
Sublevel open stoping is a low-cost method that has been successfully employed in many large underground mining operations. Where ore body characteristics are suitable, extensive mechanization and the
Jan 10, 1981
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Cost Analysis of Controlled Partial Recirculation of Mine Ventilation Air at Mount Isa Mines
By A. C. Nixon, A. D. S. Gillies, Hsin Wei Wu
Ventilation and refrigeration strategies for the 3000/3500 orebodies, Mount Isa Mines, Australia were reviewed. The orebodies lie between 1,200 and 1,800 m below surface and are characterised by steep
Jan 1, 1995
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Cost Analysis of Underground Support Construction
By Scott G. Britton
In the real world of coal mining, the bottom line for almost every support project decision is economic (i.e., what is it going to cost?). Up to this point, I have discussed the methods to improve the
Jan 1, 1983
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Cost Analysis Of Used Battery Recycling In Taiwan
By Esher Hsu
In Taiwan, around 8,000 tons of batteries are consumed per year but only 17% of which were collected and transported to oversea for recovery. The dumping used batteries have become a potential enviro
Jan 1, 2006
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Cost and Extraction in the Selection of a Mining Method
By C. E. Arnold
IN attacking the problems of mining and treating large disseminated copper orebodies such as those occurring in the Miami or the Ray district of Arizona, one of the vital questions to be decided is, "
Jan 9, 1916
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Cost And Extraction In The Selection Of A Mining Method (DISCUSSION : ARIZONA MEETING, 1916)
By C. E. Arnold
THE CHAIRMAN (PERCY G. BECKETT, Globe, Ariz.).-When you are at Miami tomorrow, you will see a very interesting comparison on the surface of the two mining methods that are being employed there largely
Jan 12, 1916
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Cost And Production Analysis For Haulback Contour Mining
By J. H. Gasper
A cost analysis for two alternative contour mining methods is performed to compare their results. The methods evaluated are: 1) Front-End Loader/Truck Haulback and 2) Scraper Haulback. Before performi
Jan 1, 1992
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Cost and Results of Geological Explorations With the Diamond Drill in the Anthracite Regions of Pennsylvania
By Louis A. Riley
I DESIRE to submit, for the consideration and information of the members of the Institute, the following data, drawings, and tables, showing what I believe will be interesting information with regard
Jan 1, 1877
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Cost And Sensitivities Analysis Of Uranium In Situ Mining ? Introduction
By George W. Toth
In a recently completed research project for the U.S. Bureau of Mines - Twin Cities Research Center, a computerized costing procedure for uranium in situ leach mining was developed by the NUS Corporat
Jan 1, 1981
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Cost and Technical Comparison of Non-Destructive Test Methods for Drilled Shafts
By Ronnie Melker, Joel Webster, Daniel Belardo, Thomas Hyatt
Quality assurance of drilled shafts is highly dependent upon the construction practices used during the excavation and concrete placement process. When performed under slurry, challenges are presented
Jan 1, 2019
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Cost Benefit Analysis Of Cleaning Two Western Coals For Steam Generation ? Introduction
By M. K. Buder
Over the years, electric utilities have been faced with declining steam-coal quality, rising coal prices, and increasingly rigid and costly environmental standards. As a result, many utilities are beg
Jan 1, 1979
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Cost Benefit Analysis Of Ore Reserve Estimation Methods
By Terry Quinlan
The financial evaluation of an orebody uses estimates for the grade of ore produced during each year for the life of the mine. Assay data from the Dolphin Scheelite Mine is used to estimate grades by
Jan 1, 1979
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Cost Benefits of EAF Bottom Purging Systems Due to Metallurgical Improvements
By Karl-Michael Zett, Marcus Kirschen, Ashraf Hanna
"Bottom purging systems are well established practice in refining metallurgy and an increasingly important technology for the EAF process in steel industry. Direct bottom purging provides efficient mi
Jan 1, 2013
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Cost Calculation for Horizontal Cut-and-Fill Mining
By Gordon M. Pugh, David G. Rasmussen
INTRODUCTION Variations of cut-and-fill stoping are the most com¬monly used methods for mining narrow, nearly vertical veins in the United States. These methods offer the best results for maximum r
Jan 1, 1982
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Cost Calculations for Highly Mechanized Cut-and-Fill Stoping
By Gordon M. Pugh, David G. Rasmussen
INTRODUCTION The two unit operations in cut-and-fill stoping that would benefit most from increased mechanization are drilling blastholes and moving broken ore to the ore¬passes. Drilling in curren
Jan 1, 1982
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Cost Calculations for Mechanized Shrinkage Stoping*
By Gordon M. Pugh, David G. Rasmussen
INTRODUCTION Shrinkage stope mining can be employed in steeply dipping veins where both the wall and the vein material are sufficiently strong to stand with only minimal ground support. Shrinkage sto
Jan 1, 1982
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Cost Calculations for Sublevel Long-Hole Stoping
By Gordon M. Pugh, David G. Rasmussen
INTRODUCTION Sublevel long-hole stoping is a large tonnage stoping method that may be used when there is a fairly com¬petent straight vein and the walls will stand with little support. It is a method
Jan 1, 1982