By Richard E. Gertsch, Richard Lee Bullock
This publication comprises chosen fabric from the out-of-print general, Underground Mining equipment instruction manual. greater than forty chapters overlaying such underground mining subject matters as sampling, making plans, reserve research, rate calculations, a variety of equipment of help, block and panel caving, and sublevel caving make up this entire textual content. a variety of tables and figures improve the broad fabric present in every one bankruptcy. an outstanding educating device and resource publication, this e-book is a needs to for any mining pupil or engineer.
Content:
entrance subject
• Preface
• desk of Contents
•Section 1. assessment 1. Ore Reserve Calculation
2. determining an Underground Mining strategy
three. normal Mine making plans
four. Sampling, Dilution, and restoration
•Section 2. equipment Requiring minimal help five. Room-and-Pillar approach to Open-Stope Mining
6. creation tools of Noncoal Room-and-Pillar Mining
7. Open Stope Mining on the Magmont Mine, Bixby Missouri
eight. Sublevel Stoping
nine. concerns for Sublevel Stoping
10. Excavation layout and Mining equipment within the 1100 Orebody, Mount Isa Mine, Australia
eleven. Stråssa Mine
12. Sublevel Stoping on the EB great Reefs at Loraine Gold Mines, Ltd.
thirteen. huge Blasthole Stoping at Rødsand Gruber, Norway
14. Vertical Crater Retreat: a massive Mining approach
15. Crater Blasting procedure utilized to Pillar restoration at Falconbridge Nickel Mines Ltd.
sixteen. expense Calculations for Sublevel Longhole Stoping
17. expense Estimation for Sublevel Stoping - A Case learn
•Section three. Stopes Requiring extra aid except Pillars 18. Shrinkage Stoping: An advent
19. Shrinkage Stoping on the Crean Hill Mine
20. Shrinkage Stoping on the Idarado Mine
21. price Calculations for Mechanized Shrinkage Stoping
22. Cut-and-Fill Stoping: An advent
23. rules of Stope making plans and format for floor regulate
24. Cut-and-Fill at Mount Isa Mines Ltd.
25. The Zinc company, Ltd., and New damaged Hill Consolidated, Ltd.
26. Cut-and-Fill Stoping at megastar Mine
27. Cut-and-Fill Stoping at fortunate Friday Mine
28. Cut-and-Fill on the Bruce Mine
29. Cut-and-Fill at Homestake Mining Co.
30. rate Calculations for hugely Mechanized Cut-and-Fill Stoping
31. Undercut-and-Fill Mining: An advent
32. Undercut-and-Fill Mining as Practiced by way of Homestake Mining Co.
33. Undercut-and-Fill Mining at Falconbridge Mine of Falconbridge Nickel Mines Ltd.
34. price Calculations for Underhand Cut-and-Fill Mining
•Section four. Sublevel Caving 35. Sublevel Caving: An advent
36. The Mechanics and layout of Sublevel Caving structures
37. Sublevel Caving at Craigmont Mines Ltd.
38. Sublevel Caving on the Stobie Mine, Inco Metals Co.
39. Sublevel Caving at LKAB's Kürunavaara Mine
forty. making plans Economics of Sublevel Caving
•Section five. Block and Panel Caving forty-one. Block Caving: common Description
forty two. Climax Panel Caving and Extraction approach
forty three. San Manuel Mine
forty four. The Henderson Mine
Index
Read Online or Download Techniques in Underground Mining - Selections from Underground Mining Methods Handbook PDF
Best mining books
This booklet constitutes the refereed court cases of the tenth ecu convention on Evolutionary Computation, laptop studying and knowledge Mining in Bioinformatics, EvoBIO 2012, held in Málaga, Spain, in April 2012 co-located with the Evo* 2012 occasions. The 15 revised complete papers provided including eight poster papers have been rigorously reviewed and chosen from various submissions.
The purpose of this publication is to collect the newest works that deal with matters concerning the idea that of mining complicated facts. the full wisdom discovery procedure being concerned, our aim is to supply researchers facing every one step of this approach via key entries. really, coping with advanced facts in the KDD strategy implies to paintings on each step, ranging from the pre-processing (e.
This accomplished advisor describes many of the points of shale shaker layout, purposes, and enhancements for maximizing potency. Drilling engineers will locate technical info for larger knowing and layout of shale shakers; and foremen and derrickmen will observe beneficial, functional insights to accomplish optimal shaker functionality.
Applied petroleum reservoir engineering
Данное издание посвящено проблемам разработки месторождений нефти. the 1st bankruptcy includes a assessment of fluid and rock homes. a number of new correlations are offered during this bankruptcy that may help these doing laptop modeling. bankruptcy 2 features a improvement of the final fabric stability equation.
- Extracting the science : a century of mining research
- SPAR Platforms: Technology and Analysis Methods
- Tubular String Characterization in High Temperature High Pressure
- Tailings and Mine Waste 2010
Extra resources for Techniques in Underground Mining - Selections from Underground Mining Methods Handbook
Example text
In the context of an orebody, this implies that the position from which any sample was taken is not important. Theoretically, using classical statistics, taking samples on opposite sides of an orebody would be just as good as taking them a short distance apart. Sample assays taken from holes drilled in close proximity to one another, within an orebody, obviously should not be random or independent. Closely spaced samples should demonstrate some correlation or, in other words, reflect some degree of continuity in the mineralization.
The method makes the assumption that the area of influence of each drill hole extends half the distance to each adjacent drill hole, with appropriate modifications for known geologic factors such as faults, contacts, or mineralization limits. The areas of the polygons may be measured by planimeter or calculated geometricallyby breaking up each polygon into a series of triangles. 6 for drill hole D-1. 40% Cu. 7. Each polygon is labeled for the contained drill hole. 3048 = m. 9071847 = t. 3048 = m Computation by Triangles Another method of computing reserves is a modification of the polygon method.
Alternatively, variograms can be computed on the logarithms of grade. Commonly, values of y ( h ) increase steadily with increasing distance and reach a limiting or plateau level, as indicated in Fig. 12. The variograms in Fig. 12 demonstrate that nearby samples have similar grades and hence low variances, whereas others farther apart are quite different. This is an expression of the continuity in mineralization. 12 Variograms for the secondary enrichment zone of a porphyry copper deposit based on a 15-m bench composite support Range.