基于拉格朗日松弛算法的露天矿开采境界优化研究  

Optimization Study on the Mining Limit of Open-pit Mine Based on Lagrangian Relaxation Algorithm

作　　者：叶海旺[1,2] 汪大新[1,2] 王超[1,2] 汪柳俊 雷涛[1,2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]矿物资源加工与环境湖北省重点实验室,湖北武汉430063

出　　处：《矿业研究与开发》2016年第3期26-30,共5页Mining Research and Development

基　　金：中央高校基本科研业务费专项资助基金项目(2014-ZY-102);中央高校基本科研业务费专项资助基金项目(2015-IVA-028)

摘　　要：露天矿开采境界优化是露天矿开采设计和生产过程中的重要内容,涉及矿山的安全、经济等各个方面,意义重大。首先采用拉格朗日松弛算法,建立露天矿山开采境界优化模型;以某石灰石露天矿为例,借助3DMine建立矿体的块体模型,以经济效益最大化为优化目标,进行露天开采境界优化研究,并与未优化的境界进行对比分析。境界优化后,矿山总剥离量减小3.84%,采出矿量增加1.96%,剥采比随之减小8.33%,经济效益明显提高。The optimization on the mining limit of open-pit mine is an important part during mining design and production,which related to the security,economy and other aspects of mine.Firstly,the optimization models of mining limit for open-pit mine were established by Lagrangian relaxation algorithm.Taking a limestone open-pit mine as an example,block models of orebody were built through 3DMine.Using the maximum economic benefits as the optimization goal,the optimization study on the mining limit was carried out.Compared to the non-optimized mining limit,it obtained that through the optimization,the economic benefit was improved obviously,in which the total overburden amount was decreased by 3.84%,the mine-out ore was increased by1.96%,and the stripping ratio was reduced by 8.33%.

关 键 词：露天矿 开采境界 永久边坡角 拉格朗日松弛算法 

分 类 号：TD856.4[矿业工程—金属矿开采]