小寺沟铜钼矿无底柱分段崩落法崩矿步距优化  

Optimization of Caving Step of Pillarless Sublevel Caving Method in Xiaosigou Cuprum-molybdenum Mine

作　　者：李树青 孟航 Li Shuqing;Meng Hang(Hebei State-Controlled Mining Development Investment Co.,Ltd.,Hebei,050000)

机构地区：[1]河北省国控矿业开发投资有限公司,河北050000

出　　处：《当代化工研究》2022年第23期183-185,共3页Modern Chemical Research

摘　　要：针对小寺沟铜钼矿目前大块率高、两率指标高、出矿效率低等突出问题,在现有无底柱分段崩落法各分段和回采进路等工程基础上,开展崩矿步距优化设计,实现分段高度、进路间距、崩矿步距的最优组合,提升矿石回采各项技术指标。依据随机介质放矿理论,得到在现有分段高度、进路间距不变的前提下,最优崩矿步距为2m。以615m中段铜采场、665m中段钼采场和650m中段铜采场的试验均取得了成功,验证了该结果的正确性。For Xiaosigou Cuprum-Molybdenum Mine has large rate high, high loss rate, the low efficiency of prominent problems, the existing each segment of bottom pillar sublevel caving and mining approach based on engineering, caved ore interval optimization design and implementation approach of sublevel height, spacing, the best combination of caved ore interval, improve ore mining technical indicators. According to the random medium drawing theory, the optimal caving step distance is 2 m under the premise that the existing sublevel height and path spacing remain unchanged.The experimental results of 615 m cuprum stope, 665 m molybdenum stope and 650 m cuprum stope are all successful, which verifies the correctness of the results.

关 键 词：无底柱分段崩落法 放出椭球体 崩矿步距 

分 类 号：TD85[矿业工程—金属矿开采]