东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (11): 1604-1608.DOI: 10.12068/j.issn.1005-3026.2016.11.018

• 资源与土木工程 • 上一篇    下一篇

覆岩散体粒径空间分布对岩石混入的影响

由希1,2， 张国建2   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819; 2. 辽宁科技大学 矿业工程学院， 辽宁 鞍山114051)
  • 收稿日期:2016-01-04 修回日期:2016-01-04 出版日期:2016-11-15 发布日期:2016-11-18
  • 通讯作者: 由希
  • 作者简介:由希(1987-)， 男， 河北石家庄人，东北大学博士研究生； 张国建(1957-)，男，河北保定人，辽宁科技大学教授.
  • 基金资助:
    国家自然科学基金资助项目(51174110);国家“十二五”科技支撑计划项目(2013BAB02B08).

Effect of Particle Size Space Distribution in Coverage Rocks on Rocks Mixture

YOU Xi1,2， ZHANG Guo-jian2   

  1. 1.School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2.School of Mining Engineering， University of Science and Technology Liaoning， Anshan 114051， China.
  • Received:2016-01-04 Revised:2016-01-04 Online:2016-11-15 Published:2016-11-18
  • Contact: ZHANG Guo-jian
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摘要： 针对崩落法在覆盖岩层下放矿岩石混入率高的问题，提出基于隶属度描述覆岩散体粒径空间分布对岩石混入影响的方法.在散体级配的基础上，用模型实验的方法构建了同一粒径级配下覆盖岩层的三种粒径空间分布模型，并用隶属度对模型进行量化.首先建立三种覆岩散体粒径空间分布模型，然后将其对指定子集的隶属度作为描述岩石混入的方法，对比等量放矿条件下的岩石混入结果.实验结果表明:本方法揭示了覆岩散体粒径空间分布对岩石混入过程的影响，对认识岩石混入与矿石贫化发生具有指导意义.

关键词: 覆岩散体, 粒径空间分布, 模型实验, 隶属度, 岩石混入

Abstract: In view of higher rocks mixture rate of ore drawing under the coverage rocks， a method describing the effect of particle size space distribution in coverage rocks on rocks mixture was proposed based on the degree of membership. On the basis of coverage rocks gradation， the model-experiment method was used to construct three sorts of coverage rocks’ particle size space distribution with identical gradation， and the degree of membership was used to quantify the model-experiment. Firstly， three sorts of particle size space distribution in coverage rocks were constructed. Then the degree of membership about specific subset was used to quantify the particle size space distribution in coverage rocks and rocks mixture process was estimated. Finally， the results of rocks mixture rate at equal ore drawing were compared. The model-experimental results showed that the method can reveal the effect of particle size space distribution in coverage rocks on rocks mixture， and it is a significant and helpful method to understand the process of rocks mixture and ore dilution.

Key words: coverage rocks, particle size space distribution, model-experiment, degree of membership, rocks mixture

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