CAJ | 학술논문

悦洋银矿自建矿以来一直采用浅孔留矿采矿法进行回采，井下形成了大量的空区，给矿山生产带来了极大的安全隐患，且残留大量高品位矿体。为了合理、高效、安全地回收这些残矿，并结合改扩建工程建设，悦洋银矿开展了分段凿岩阶段矿房嗣后充填采矿法工业试验。详细介绍了采矿法试验采场结构参数和工艺过程，工业试验取得了采矿损失率9．5％、采矿直接成本34．4元/t的很好技经指标，并为矿山井下大规模采矿积累了经验。
열양은광자건광이래일직채용천공류광채광법진행회채，정하형성료대량적공구，급광산생산대래료겁대적안전은환，차잔류대량고품위광체。위료합리、고효、안전지회수저사잔광，병결합개확건공정건설，열양은광개전료분단착암계단광방사후충전채광법공업시험。상세개소료채광법시험채장결구삼수화공예과정，공업시험취득료채광손실솔9．5％、채광직접성본34．4원/t적흔호기경지표，병위광산정하대규모채광적루료경험。
Shallow-hole shrinkage method has been long used in Yueyang silver mine since its establishment .As a result,large amounts of goafs are formed bringing threats to safe production and a lot of residue ores with high grade remain.In order to recover these residues in a reasonable ,effective and safe way,an experimental study of the applica-tion of sublevel rock drilling and stage room mining technology was carried out associated with the reconstruction and extension project .The paper in detail introduced the structural parameters in the test and the technical process .The experiment achieved satisfactory results with the technical index ,including a low dilution rate of 9 .5 %and a cost-ef-fective input of 34.4 yuan/t.The test accumulated much experience for real underground mining in the mine .