| 留矿和无底柱分段崩落联合采矿法在某铀矿床的应用 |
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| 引用本文： | 樊长军.留矿和无底柱分段崩落联合采矿法在某铀矿床的应用[J].铀矿冶,2012,31(1):19-21. |
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| 作者姓名： | 樊长军 |
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| 作者单位： | 西安中核蓝天铀业有限公司,西安,710500 |
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| 摘 要： | 针对西安中核蓝天铀业有限公司某铀矿床采用无底柱分段崩落法在进路退采时,因矿体边界矿岩变化较大、不能成功爆破放顶,下分段又无法对边界这部分矿石进行回收,造成矿石永久损失的问题,提出留矿和无底柱分段崩落联合采矿方法。实践证明,采用这种联合采矿方法,矿石回采率显著提高,贫化率明显下降,采矿安全性大大提高。
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| 关 键 词： | 矿石回收 联合采矿法 回采率 应用 |
Application of combined shrinkage stoping and pillarless sublevel caving mining method to a uranium deposit |
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| FAN Chang-jun.Application of combined shrinkage stoping and pillarless sublevel caving mining method to a uranium deposit[J].Uranium Mining and Metallurgy,2012,31(1):19-21. |
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| Authors: | FAN Chang-jun |
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| Affiliation: | FAN Chang-jun(Xi’an Lantian Uranium Co.,Ltd.,CNNC,Xi’an 710500,China) |
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| Abstract: | Pillarless sublevel caving mining method was used to mining ores in a uranium mine.Because ore-rock interface changed greatly,this part of ores can not be recovered effectively in the mining process,resulting in the permanent loss of these ores.Aimed at the problem,a combined shrinkage stoping and pillarless sublevel caving mining method is presented.Practices show that the ore recovery is increased,dilution rate is declined,and mining safety is improved greatly by using the combined method. |
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| Keywords: | ore recovery combined mining method recovery ratio application |
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