融冠矿业崩落法放矿试验优化采场进路参数研究  

Study on Optimization of Stope Approach Parameters in Caving Method Ore Drawing Test of Rongguan Mining

作　　者：彭敏杰 陆玉根 PENG Minjie;LU Yugen(Inner Mongolia Xingye Group Rongguan Mining Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]内蒙古兴业集团融冠矿业有限公司 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2022年第7期64-66,76,共4页Modern Mining

摘　　要：为研究适合于融冠矿业无底柱分段崩落法的进路口尺寸,验证优化增加进路间距后扩大进路尺寸宽度是否具有科学依据,开展了放矿试验优化采场进路参数的研究。放矿单体试验得出了不同放出高度下放矿椭球体的发育形态。将单体试验绘制出的椭球体按照目前井下采用的不同采场结构参数组合进行排列,结果表明:分段高度为12 m时,进路间距取15 m,进路口宽度取6 m是一种较为合理的采场结构参数组合。自962 m分段水平以下,矿山增大进路间距值至15 m。通过立体试验数据分析表明:进路间距值增至15 m,需同时将进路宽度扩大至6 m,以实现放出椭球体两两相切,使得贫化和损失较小。In order to study the entry size suitable for the sub-pillar-free sub-caving method of Rongguan Mining,and verify whether there is a scientific basis for expanding the size and width of the approach after optimizing and increasing the distance between the approaches,a study on the optimization of stope approach parameters was carried out in a draw test.The ore-drawing monomer test has obtained the developmental shape of the ore-drawing ellipsoid in Rongguan Mining at different discharge heights.The ellipsoids drawn by the single test are arranged according to the combination of different stope structure parameters currently used in the well,and it shows that when the height of the segment is 12 m,the distance between the entrances is 15 m,and the width of the entrance is 6 m,which is a more reasonable stope structure.parameter combination.From the 962 m subsection level below,the mine has increased the approach distance to 15 m.The analysis of the three-dimensional test data shows that when the approach distance is increased to 15 m,the width of the approach path needs to be widened to 6 m at the same time,so as to release the ellipsoids in pairs.So that,the dilution and loss are small.

关 键 词：崩落法放矿试验 采场进路参数优化 单体试验 立体试验 

分 类 号：TD853.36[矿业工程—金属矿开采]