基于灰色关联法的某地下铁矿过渡段残留矿体采矿方法优选  

Optimization of Residual Orebody Mining Method in Transitional Section of an Underground Iron Ore Based on Grey Correlation Method

作　　者：张延森 ZHANG Yansen(Shandong Branch of China National Geological Exploration Center of Building Materials Industry)

机构地区：[1]中国建筑材料工业地质勘查中心山东总队

出　　处：《现代矿业》2022年第8期92-94,98,共4页Modern Mining

摘　　要：合理的采矿方法是复杂工程地质条件下矿体安全开采的关键。针对某地下铁矿过渡段残留矿体上覆为崩落体,下方为充填体的复杂工程地质条件,结合矿山现有生产技术条件,初步选定上向水平分层充填法、上向进路充填法、分段空场嗣后充填法、无底柱分段崩落法4种备选采矿方法。运用灰色关联法综合考虑多项技术指标,计算4种备选采矿方法关联度,结果分别为0.508、0.437、0.524、0.644,从而确定无底柱分段崩落法为最佳备选方法。Reasonable mining methods are the key to safe mining of ore bodies under complex engineering geological conditions.In view of the complex engineering geological conditions of the residual ore body in the transition section of an underground iron mine,which is overlying the caving body and below the filling body,combined with the existing production technical conditions of the mine,four alternative mining methods are preliminarily selected,namely,upward horizontal layered filling method,upward route filling method,segmented open field subsequent filling method,and non-pillar segmented caving method.The grey correlation method was used to comprehensively consider a number of technical indicators,and the correlation degrees of four alternative mining methods were calculated.The results were 0.508,0.437,0.524 and 0.644,respectively.Thus,the non-pillar sublevel caving method was determined as the best alternative method.

关 键 词：灰色关联法 采矿方法 残留矿体 

分 类 号：TD861.1[矿业工程—金属矿开采]