露天矿开采扰动效应评价指标体系及评价模型

Mining disturbance effect evaluation index system and evaluation model of the open-pit mine

界定了23个露天矿开采扰动效应评价指标的基本内涵,阐述了指标计算方法,建立了开采扰动效应综合评价模型,运用层次分析法确定了评价指标权重分布。土地生产力弹性系数的权重最高,表明矿区土地生产力的变化是影响开采扰动效应强弱的最主要因素。矿岩采剥强度的权重最低,表明剥采比对开采扰动效应的影响较小,剥采比大的其负向扰动效应并不一定强。

The article defines the basic connotation and calculation method of 23 open-pit mine disturbance effect evaluation indexes,establishes the comprehensive evaluation model of mine disturbance effect.Using AHP to determine the index weight coefficient,and the LPR's weight coefficient is the highest,which indicates that the change of land productivity is the most important factor that affects the intensity of mining disturbance effect.The OBRI's weight coefficient is the lowest,which indicates that the stripping ratio has little influence on the mining disturbance effect.The negative disturbance effect of open-pit mines with large stripping ratio is not necessarily strong.