Proceedings of the conference on Recent Advances in Rock Engineering (RARE 2016)

Electronic detonators ? A tool for mitigating mining costs & risks

Authors
P.V.S. Sarma, A.M. Kazmi, A.D. Sao
Corresponding Author
P.V.S. Sarma
Available Online November 2016.
DOI
https://doi.org/10.2991/rare-16.2016.27How to use a DOI?
Keywords
Mining; ground vibrations;delay times
Abstract
Mining is a hazardous activity and capital intensive in nature too.  The cost of stoppage of mines, for any reason, for few hours is enormous. The mines need to minimise the stoppage times to improve productivity and to reduce costs. Mining companies should have to go for large size blasts to achieve this objective. Large size blasts using traditional initiating devices, create numerous concerns to mine authorities like ground vibrations, slope stability, noise, fly rock, back break etc. To extract minerals from earth's crust by opencast method, we break and remove large volumes of waste rock.  With increase in stripping ratios in Open Cast method of mining,  the waste volumes to be broken for removal is increasing year on year.  As the handling of waste volumes increase, the risks associated with mining also increases as the number of blasting events increase, more issues arise on slope stability, control of ground vibrations and noise to permissible limits etc., Blasting productivity and control is mainly governed by delay times used. The delay times proposed to be used should have a wide range (1-10000 MS) and accurate.  Other wise the blast control becomes impossible, particularly when the charges used per hole are large to very large, and the number of holes to be fired / blast are more than 50 numbers. The team at GOCL demonstrated, that  the mining costs and risks  can be reduced using electronic detonators at few mines
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Proceedings
Recent Advances in Rock Engineering (RARE 2016)
Part of series
Advances in Engineering Research
Publication Date
November 2016
ISBN
978-94-6252-260-2
ISSN
2352-5401
DOI
https://doi.org/10.2991/rare-16.2016.27How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - P.V.S. Sarma
AU  - A.M. Kazmi
AU  - A.D. Sao
PY  - 2016/11
DA  - 2016/11
TI  - Electronic detonators ? A tool for mitigating mining costs & risks
BT  - Recent Advances in Rock Engineering (RARE 2016)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/rare-16.2016.27
DO  - https://doi.org/10.2991/rare-16.2016.27
ID  - Sarma2016/11
ER  -