2 edition of Secondary blasting at INCO"s Creighton Mine using RocKracker"s(TM) found in the catalog.
Secondary blasting at INCO"s Creighton Mine using RocKracker"s(TM)
Michael W. Glogger
|Statement||by Michael W. Glogger.|
|The Physical Object|
|Pagination||v, 21 l. :|
|Number of Pages||21|
Reserve-Resource. CANADIAN GOVERNMENT PUBLICATIONS CENTER, ENERGY, MINES, AND. Reserve-Resource. RESOURCES. CANADA, Deposit. CANADIAN MINES HANDBOOK Chapter 19 BLAST DESIGN Introduction This chapter is an introduction to blasting techniques based primarily on the Explosives and Blasting Procedures Manual (Dick et al., ) and the Blaster’s Handbook (E.I. du Pont de Nemours & Co., Inc., ). Blast design is not a .
The data presented in this report are the results, to date, of an ongoing research program on the explosion hazards associated with blasting operations in noncoal mines. Tests conducted at the cannon gallery at Lake Lynn Laboratory near Fairchance, Fayette County, PA, provided a means of evaluating the relative incendivity characteristics of. University of rizona Mining and Geological Engineering Rock Excavation MnE – Course Notes – Spring Module Compiled by.
Blasting practices in mines have undergone many changes in the recent past and continue to be honed and reconfigured to meet the demands of today s mining needs. This volume compiles papers of the workshop Blasting in Mines New Trends, hosted by the Fragblast 10 Symposium. eBook is an electronic version of a traditional print book THE can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THE is used solely as a reading device such as Nuvomedia's Rocket eBook.
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Mine workers may become ill or die if they remain in an area where toxic fumes levels are high. Between andeight miners were injured by exposure to blasting fumes. Surface blasting breaks up rock and frequently throws rock away from the blast site.
Mine workers may be killed or injured by rock thrown by a blast. 18 Sometimes, blasting is also carried out for removing the overburden from the surface of the earth for construction purposes.
An optimum blast is associated with the most efficient use of blasting energy in the rock- breaking process. The mine blasting expenditure should also be very less. An optimum blast is associated with the m ost efficient use of blasting energy in the rock-breaking process. The mine blasting expenditure should also be v ery : A.
Balasubramanian. Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road result of rock blasting is often known as a rock cut.
Drilling and blasting currently utilizes many different varieties of. Percentages of ore extraction and ore recovery from both DSB rings in drifts and and ordinary rings in reference drifts and at level AL m. members keep in constant contact using radios.
Once at the blasting position: a. Make sure all possible run out zones are free of people and traffic. For areas not visible from the blasting point, arrange for signals from an observer. Work with only one charge at a time. Step into blasting position and make final check of target and.
enhance the safe, effective, and efficient use of blasting technology by the mining industry. Recent research results of the surface mine blast ing program were presented at a seminar on Apin Chicago, IL.
Many of the topics discussed at the. Blasting related information were collected from three different mines of Mahanadi Coalfields Ltd.(MCL) for implementation of the optimization model. A program was designed using visual basic platform taking the above parameters into consideration to.
blast. Modification of blasting procedures should include limiting the size and frequency of blasts to limit the production of noxious fumes, and stripping of the overburden prior to blasting and excavating the shot rock immediately after blasting to allow the venting of gases.
The use of vent holes or vent pits may also be necessary. The purpose of this Handbook is to give basic knowledge of the drilling systems, the types of available explosives and the accessories and the parameters that intervene in blast designing, whether controllable or not; at the same time the objectives and contents contribute to improved safety in mining.
This module presents recommended blast-design practices for surface mine and quarry blasting. Mb: Blaster Training Module 4 This module presents aspects of surface drilling that are important to blasting operations.
The purpose of drilling into rock is to provide a "blasthole" into which explosives can be loaded. Received 23 February ; accepted 15 May Corresponding author. Tel: +; E-mail address: [email protected] Optimization of drilling and blasting operations in an open pit mine—the SOMAIR experience AFENI Thomas Busuyi School of Mining Engineering, Faculty of Engineering and Built Environment, University of the Witwatersrand.
explosives/blasting industry of over years of practical blasting experience in most blasting environments. If required, the course can be run for a small group from one organisation at a mine site or at a training venue convenient to the workplace. Training Methods. However, secondary blasting is the most expensive type of blasting.
Appropriate blast design is important in order to lessen the production of over size. Secondary blasting can be done by pop shooting (blockholing) and plaster shooting (mudcapping). Shaped charges are sometime used in secondary blasting, but this is much more expensive.
Cast. Rock Blasting Fundamentals Slide No. 30 Rock Blasting Basics zA contractor has planned a blasting program in slightly weathered, moderately fractured Gneiss having a specific gravity of The rock bedding was measured to dip steeply into the cut. zThe contractor intends to use poured ANFO having a specific gravity of TABLE OF CONTENTS.
i Stantec Consulting Ltd. Foreword. Edition 5, January by Scott McIntosh, Stantec. John (Jack) de la Vergne's. Hard Rock Miner’s Handbook is a work of the heart.
Jack—whose 40+ year career spanned. Analysis of blasting vibration revealed that support integrity is not compromised unless there is a geological structure to act as a failure plane. The peak particle velocity (PPV) rarely exceeded mm/s with a frequency larger than 50 Hz.
As expected, blasting more competent rock resulted in higher PPVs. By optimising rock fragmentation by blasting, you can achieve significant improvements in waste productivity, mill throughput, fragmentation profile and wall stability.
Stuart Thomson, Orica's Global Bulk and Packaged Explosives Product Manager, explains in this paper how blasting improves productivity and environmental performance with some. Stack B - The ubiquitus drill - Jobson’s Mining Year Book / Google Scholar 3.
Bagioli G. - Metodos modernos de perforación y otras mejoras tecnológicas en la mina El Soldado, XVII Convención de Ingenieros de Mina, Peru Google Scholar.
All in all, for a narrow ore body as shown in Fig. b, it is better to use the single-ring blasting method in order to reduce permanent ore loss. Double-Ring Blasting As for two rings that are blasted together in one blast, we discuss two cases: one for a narrow ore body and the other for a large ore body.
Blasting in Coal Mines •Modern mechanised coal mines use machines and longwall mining methods to cut solid coal and convey the broken coal out of underground • Carborough Downs Coal Mine is situated in the Bowen Basin, 15 kilometres east of Moranbah and about kilometres south-east of Mackay in Queensland.Rules, Regulations, Research and Resources.
The Federal Surface Mining Control and Reclamation Act of requires that coal mine blasting be limited based on the site conditions so as to prevent: injury to persons, damage to public or private property outside the permit area, adverse impacts on any underground mine, and change in the course, channel, or availability.
Blasting Principles for Open Pit Mining, Set of 2 Volumes (Vol 1) [Hustrulid, William A.] on *FREE* shipping on qualifying offers. Blasting Principles for Open Pit Mining, Set of 2 Volumes (Vol 1)Reviews: 1.