An approach to improve blasting efficiency in an iron ore mine

Singh, M.M. and Singh, R.B. and Pal Roy, P. and Bagchi, A. and Dhar, B.B. (1994) An approach to improve blasting efficiency in an iron ore mine. International Journal of Surface Mining, Reclamation and Environment, 8 (3). pp. 87-93. ISSN 1389-5265

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Official URL: http://DOI:10.1080/09208119408964766

Abstract

This paper presents an approach to improve overall blasting efficiency in an iron ore mine. The problems existing in the mines were oversize fragmentation, severe backbreak, frequent secondary drilling and blasting operations, sloping bench faces and irregular bench profiles. Thorough analysis of the blasting practices and results was done in the search of key parameters affecting blasting efficiency. The parameters were burden, stemming length, delay period between the rows, placement of booster charge, booster ratio and firing pattern. Optimum blast geometry was evolved by making proper adjustments of the above parameters during trial blasts.

Item Type:	Article
Subjects:	Blasting
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	25 Jan 2012 04:55
Last Modified:	14 Jul 2012 11:18
URI:	http://cimfr.csircentral.net/id/eprint/784

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