下向高分段胶结充填采矿法在用沙坝矿的应用 关键词：高分段；人工假顶；采矿方法选择；中深孔 [gap=984]Key words：high sublevel；artificial roof；option of mining methods；medium-deep hole
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medium deep hole blasting 中深孔爆破
medium deep hole 中深孔
medium-deep hole blasting 中深孔爆破
medium-deep hole blowing up 中深孔爆破
blasting of medium deep hole 中深孔爆破
Serial blasting crater test method was used in underground medium and deep hole mining of Dahongshan copper mine for determining drilling and blasting parameters, and good results were obtained.
大红山铜矿地下中深孔采矿中，采用系列爆破漏斗试验方法确定中深孔采矿凿岩爆破参数，取得了较好的效果。
Medium and deep hole casting blast sublevel open stoping method is suggested and its suitability to the stope ground pressure is expounded.
提出了中深孔抛掷爆破分段空场法，并阐明其对采场地压的适应性。
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