Mining

Download PDF by Ajoy K. Ghose, Akhilesh Joshi: Blasting in Mining - New Trends

By Ajoy K. Ghose, Akhilesh Joshi

ISBN-10: 0203388062

ISBN-13: 9780203388068

ISBN-10: 0415621399

ISBN-13: 9780415621397

ISBN-10: 1628707224

ISBN-13: 9781628707229

Blasting practices in mines have gone through many adjustments within the contemporary earlier and stay honed and reconfigured to satisfy the calls for of today’s mining wishes. This quantity compiles papers of the workshop Blasting in Mines – New Trends, hosted through the Fragblast 10 Symposium . The 17 papers supply a mixture which spotlight the evolving traits in blasting in mines. those diversity from distinctive options of solid blasting, purposes of seed wave modelling for more advantageous fragmentation, to layout of mass blasts and regulated blasting for balance of pit-walls. Blasting in Mines – New Trends can be of specific curiosity to mining and blasting engineers.

Show description

Read Online or Download Blasting in Mining - New Trends PDF

Similar mining books

Syntactic Pattern Recognition for Seismic Oil Exploration by Kou-Yuan Huang PDF

Using trend reputation has turn into an increasing number of vital in seismic oil exploration. analyzing a wide quantity of seismic info is a hard challenge. Seismic mirrored image facts within the one-shot seismogram and stacked seismogram could include a few structural info from the reaction of the subsurface.

New PDF release: Text Mining and its Applications: Results of the NEMIS

The area of textual content mining is concurrently a minefield and a gold mine. textual content Mining is a speedily constructing purposes box and a space of clinical study, utilizing ideas from well-established clinical fields equivalent to information mining, computing device studying, details retrieval, average language processing, case-based reasoning, records and information administration.

Download e-book for iPad: Reducing Low Back Pain and Disability in Mining by Gallagher, Sean

Compiled via the U. S. Dept of wellbeing and fitness and Human companies, CDC/NIOSH place of work of Mine protection and well-being learn, this 2007 file was once written that allows you to offer greater regulate measures for low again soreness (LBP) and coffee again incapacity within the mining undefined. larger activity layout is promoted because the top approach to lowering situations of LBP and will additionally lessen the incapacity linked to LBP while it occurs.

Handbook of hydraulic fracturing by James G. Speight PDF

Provides an updated description of present and new hydraulic fracturing methods -Details rising applied sciences similar to Fracture remedy layout, Open gap Fracturing, Screenless Completions, Sand keep an eye on, Fracturing Completions and productiveness -Covers Environmental influence matters together with Geological Disturbance; chemical substances utilized in Fracturing; common chemical substances; poisonous chemical substances; and Air, Water, Land, and health and wellbeing affects -Provides many procedure diagrams in addition to tables of feedstocks and their respective items.

Additional info for Blasting in Mining - New Trends

Example text

However, once it gets to the part of ring slashing blast, the initiation speed can be much faster in order to achieve better fragmentation. This initiation requirement, namely a slow initiation at the beginning followed by a faster and more precise timing, is exactly opposite to what pyrotechnic detonators can offer. Pyrotechnic detonators are generally more precise for short delay and less accurate for long delay periods. Electronic detonators are very accurate regardless the delay time for the purposes of muck movement consideration.

After over one year of testing and a vigorous Pre-Development Review (PDR), the system was then fully implemented. As a general practice, all production blasts are fired from surface via a telephone line. Application of such new technologies and the new mass blast principle were among the key factors for maintaining the production level at Mine-K when most of the mining activities are reaching over 3000 m below surface. THE EXPERIENCE AT MINE-L • Holes to clean after each blast until the final blast; • Caving in the slot; • Unable to blast all holes; • Large blocks in the stope • Back caving after the mass blast Obviously, all these problems cannot be addressed by drill and blast design alone.

Sonicity controls the relationship between detonation, fragmentation and vibration immission. For a constant amount of energy of a blast, a higher degree of fragmentation is accompanied with lower levels of vibrations. The new advanced blasting theory based on sonicity enables the blast engineer to design larger blasts without increasing unwanted vibrations while obtaining optimal fragmentation. 1 INTRODUCTION Bragg-grid based strain sensors, 3-component geophones and a 3-D-laser scanner [Mueller & Pippig 2011b].

Download PDF sample

Blasting in Mining - New Trends by Ajoy K. Ghose, Akhilesh Joshi


by William
4.2

Rated 4.62 of 5 – based on 38 votes