Improved Optimization Algorithm of Ultimate Pit for Open Pit Metal Mine

doi:10.12068/j.issn.1005-3026.2014.08.029

Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (8): 1195-1198.DOI: 10.12068/j.issn.1005-3026.2014.08.029

• Resources & Civil Engineering • Previous Articles Next Articles

Improved Optimization Algorithm of Ultimate Pit for Open Pit Metal Mine

XU Xiaochuan¹， GU Xiaowei¹， WANG Qing¹， LIU Jianping^1,2

1 School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China； 2 Dongmei Foundation Company of Shenyang， Shenyang 110016， China.

Received:2013-11-15 Revised:2013-11-15 Online:2014-08-15 Published:2014-04-11
Contact: GU Xiaowei
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Abstract

Abstract: 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.

Key words: ultimate pit, pit optimization, cone elimination method, open pit mine

CLC Number:

TD854

XU Xiaochuan， GU Xiaowei， WANG Qing， LIU Jianping. Improved Optimization Algorithm of Ultimate Pit for Open Pit Metal Mine[J]. Journal of Northeastern University Natural Science, 2014, 35(8): 1195-1198.

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Improved Optimization Algorithm of Ultimate Pit for Open Pit Metal Mine

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