金属露天矿最终境界优化算法改进  

Improved Optimization Algorithm of Ultimate Pit for Open Pit Metal Mine

作　　者：胥孝川[1] 顾晓薇[1] 王青[1] 刘剑平[1,2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819 [2]东煤沈阳基础工程公司,辽宁沈阳110016

出　　处：《东北大学学报（自然科学版）》2014年第8期1195-1198,共4页Journal of Northeastern University(Natural Science)

基　　金：辽宁省自然科学基金资助项目(201102065;201202075);教育部新世纪人才支持计划项目(NCET-11-0073);教育部高等学校博士学科点专项科研基金资助项目(20130042110012);东北大学基本科研业务费资助项目(N130601002);中央高校基本科研业务费专项资金资助项目(N120101001)

摘　　要：锥体之间的重合问题是锥体排除法在露天矿最终境界优化中的一个固有缺陷.鉴于此,本文对已有锥体排除算法进行改进,在垂直方向缩小锥体扫描步长,将步长分别设置为模块高度的1倍,1/2和1/4,并根据矿体的实际赋存情况选择对应的扫描步长或者多步长组合进行分等级优化,以此提高优化精度.三个矿山的实例应用表明,在相同的技术经济参数条件下,改进后的优化算法得到的最终境界要优于原锥体排除算法,三个矿山利润值分别增加了0.217亿,0.417亿和2.333亿元.The overlapping problem in cones is an inherent defect for cone elimination method in optimizing ultimate pit. In view of this, diminishing vertical scan step is used to improve cone elimination algorithm and the step are set as one, half and one quarter of the block height. According to the actual conditions of ore deposits, an appropriate step or combination step is chosen for some mine optimization to improve optimization accuracy. The results of three example applications show that, under the same condition of technical and economic parameters, the ultimate pits produced by improved elimination algorithm are better than those by conventional algorithm. The profits of three mines grow by RMB 21.7, 41.7, and 233.3 million, respectively.

关 键 词：最终境界 境界优化 锥体排除法 露天矿 

分 类 号：TD854[矿业工程—金属矿开采]