改进的露天境界优化几何约束模型及其应用  

The improved geometrical constraint model of open-pit mine boundary optimum and its application

作　　者：黄俊歆[1,2] 王李管[1] 毕林[1] 谭正华[1] 陈建宏[1] 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]湖南工学院安全与环境工程系,湖南衡阳421001

出　　处：《重庆大学学报（自然科学版）》2010年第12期78-83,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50774092)

摘　　要：提出了一种改进的露天境界优化几何约束新模型(improved geometric constraint model,IGCM)。IGCM基于三维块段模型,采用图论的方法将每个块段的多边坡角开采锥抽象为节点与有向边的集合,介绍了利用集合理论对其进行优化的方法,IGCM由优化后的节点与有向边的集合构成。基于IGCM的算法已用于DIMINE数字矿山系统中,并在实际露天矿山的境界优化工程中得到应用。应用表明:IGCM能够准确模拟任意方位、高程上的边坡角变化,适应于任何复杂几何约束条件下的露天矿境界优化问题。This paper develops the improved geometric constraint model （IGCM） based on the 3D block model. The variable-slope excavation cones of each block have been abstracted to collections of nodes and directed edges,and the optimization method has been introduced using the set theory. The IGCM consists of the optimized collection nodes and directed edges. The algorithm based on IGCM has been actualized in DIMINE digital mine system,and is applied to an actual open pit mine boundary optimization engineering. The results shows that IGCM can accurately simulate variable slope angles in any azimuth and elevation changes,and adapt to all open pit mine boundary optimum problems in any complex geological conditions,calculation speed and accurate. It provides a new and effective method for the variable-slope open pit mine boundary optimization problem in complex geological conditions.

关 键 词：露天矿 境界优化 块段模型 多边坡角 几何约束模型 

分 类 号：TD804[矿业工程—矿山开采]