《黄金》杂志(月刊) 第38卷 总第396期
2017年02月 第02期
目次
采矿工程
  • 中深孔嗣后废石充填采矿法在急倾斜薄矿脉开采中的试验应用……戚 伟,曹 帅,宋卫东
  • 摘 要:急倾斜薄矿脉在中国金属和非金属矿山较为常见。传统浅孔留矿采矿法具有生产效率低、安全性差等劣势。以青海山金矿业有限公司果洛龙洼矿区为工程背景,提出采用中深孔嗣后废石充填采矿法回采急倾斜薄矿体。选取Ⅱ-3840-4957,Ⅱ-3880-6165和Ⅱ-3880-5258 3个采场开展工业试验,试验采场矿石贫化率平均为44.67 %,采矿损失率平均为5.67 %,试验采场经济技术指标较好。因此,该开采工艺对于回采急倾斜薄矿体具有广阔的应用前景,值得推广。
  • 关键词:急倾斜薄矿脉;中深孔;废石充填;嗣后充填;采矿工艺

    Application of medium long-hole blasting and subseqvent waste rock filling method in the extraction of steeply inclined thin orebody……Qi Wei,Cao Shuai,Song Weidong

    AbstractSteeply inclined thin orebodies are commonly seen in metallic and non-metallic mines in China.Traditional short-hole shrinkage methods have the disadvantages of low production efficiency and poor safety.Taking Guoluo-longwa Mining District in Guoluo Gold Deposit of Shanjin mining company as the engineering background,the medium long-hole blasting and waste rock filling method is proposed to extract steeply inclined thin orebodies.Industrial tests were carried out in 3stopes,namely Ⅱ-3840-4957,Ⅱ-3880-6165 and Ⅱ-3880-5258.The results show that the dilution rate in the trial stope is 44.67 % on average,and the loss rate is 5.67 %.The economic and technical indicators of this mining method are good.Thus the mining technology has wide application prospects for the extraction of steeply inclined thin orebodies.

    Keywords:steeply inclined thin orebody; medium long hole; waste rock filling; subsequent filling; mining technique

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