IN-THE-HOLE DRILLING AT HEATH STEELE MINES LIMITED.

被引:0
|
作者
Ladner, Errol A.
机构
来源
Transactions of the Canadian Institute of Mining and Metallurgy and of the Mining Society of Nova Scotia | 1979年 / 82卷
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中图分类号
TD [矿业工程]; P61 [矿床学];
学科分类号
0709 ; 081803 ; 0819 ;
摘要
This paper deals with drilling with conventional percussion longhole drills and the changeover to accommodate larger blastholes in underground operations. The discussion includes layouts for 2-inch-diameter blasthole stope blocks, 6-inch-diameter stope blocks, trials for stope rooms, and drill patterns, drilling and performance.
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页码:169 / 175
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