摘要
为解决某铅锌矿深部采区833m分段内矿体赋存形态复杂多变,采用传统单一回采方式下,矿石损失贫化较高等问题,基于分段空场嗣后充填采矿法工艺特点,利用3DMine矿业软件开展三维矿体形态自适应组合式设计,构建包含矿石损失率、贫化率、采切比等6项指标的熵权法-TOPSIS综合评价体系,在垂直走向上布置进路开采厚大矿段,在沿走向上布置进路回采薄脉矿段,对比分析垂直走向、沿走向及组合式3种开采方案的适应性。研究表明:组合式开采方案可使矿石损失率由10.98%降至5.12%,贫化率由10.73%降至6.17%,该方案较垂直走向、沿走向方案分别多回收1727.8,889t矿石,取得了良好的经济效益。研究成果形成的动态协同回采控制技术,为复杂形态矿体高效开采提供了可量化的工程决策模型。
In order to solve the problem of high ore loss and depletion under the traditional single mining method,in order to solve the complex and varied occurrence form of the 833 m sublevel orebody in the deep mining area of a lead-zinc mine,based on the technical characteristics of the sublevel open stope and subsequent filling mining method,the 3DMine mining software was used to carry out the adaptive combined design of the 3D orebody shape.The entropy-TOPSIS comprehensive evaluation system was constructed,which included six indexes,such as ore loss rate,depletion rate and stop-cut ratio.The adaptability of three mining schemes,vertical strike,along strike and combined,was compared and analyzed by laying out the route to mining thick and large ore section and along strike to mining thin vein ore section.The results show that the combined mining scheme can reduce the ore loss rate from 10.98% to 5.12%,and the dilution rate from 10.73% to 6.17%.Compared with the scheme and along strike scheme,the combined mining scheme can recover 1727.8 t,889 t more ore,and obtain good economic benefits.The dynamic cooperative mining control technology formed by the research results provides a quantifiable engineering decision model for efficient mining of complex ore bodies.
作者
石海军
杨会选
张睿
赵丽军
柴衡山
焦满岱
SHI Haijun;YANG Huixuan;ZHANG Rui;ZHAO Lijun;CHAI Hengshan;JIAO Mandai(Northwest Research Institute of Mining and Metallurgy;Gansu Province Deep Well Efficient Mining and Disaster Control Engineering Laboratory;Gansu Changba Non-Ferrous Metals Co.,Ltd.)
出处
《现代矿业》
2025年第4期43-47,共5页
Modern Mining
基金
甘肃省重点研发计划项目(编号:23YFGD0002)。
关键词
急倾斜矿体
分段空场嗣后充填法
联合开采
steeply dipping orebody
sublevel open stoping with subsequent backfill
combined mining
