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Investigation of Some Blast Design and Evaluation Parameters for Fragmentation in Limestone Quarries  

Rai, Piyush (Dept. of Energy & Resources Eng., Chonnam National University, Dept. of Mining Eng., Banaras Hindu University)
Yang, Hyung-Sik (Dept. of Energy & Resources Eng., Chonnam National University)
Publication Information
Tunnel and Underground Space / v.20, no.3, 2010 , pp. 183-193 More about this Journal
Abstract
The present paper highlights some important fragmentation issues experienced in the limestone quarry blast rounds. In light of these major issues, the paper outlines influence of a few important design parameters, which bear merit to alter the blast performance in order to duly resolve the issues in field scale blast rounds. A comprehensive field based program for evaluation of such blast rounds has also been suggested. The knowledge disseminated in the paper, backed up by sufficient images, is largely based on the experience of the authors, while designing, implementing and evaluating numerous field scale blast rounds in cement grade limestone quarries.
Keywords
Fragmentation; Effective spacing and burden; Firing pattern; Bench stiffness; High wall;
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