摘要
在熟悉国内外近年来大直径深孔和中深孔凿岩、装药、爆破等技术基础，通过技术经济分析，确定了冬瓜山铜矿大孔采矿和中深孔采矿的适用范围。
Based on the recent technology of drilling, charging and blastingfor large - diameter hole mining and medium - length hole mining at home and abroad,the application range of large hole mining and medium - length hole mining in Dongguashan Copper Mine is determined through technology and economic analysis.
出处
《有色矿山》
1999年第2期5-7,11,共4页
Nonferrous Mines
