红岭铅锌矿采场结构参数优化研究
Study on the optimization of stope structural parameters of Hongling Lead-Zinc Mine
张建伟 1赵江波 1姚景亮1
作者信息
摘要
为确定红岭铅锌矿分段凿岩阶段空场嗣后充填采矿法的合理采场结构参数,采用数值模拟的方式对顶板厚度分别为3 m、5m、7m和10 m,采场长度分别为20 m、30 m、40 m和60m的16种工况进行了研究,对比了顶板厚度为3m情况下各工况的应力、位移和塑性区分布.结果表明:红岭铅锌矿分段凿岩阶段空场嗣后充填采矿法采场顶板厚度 3m,采场长度 35m时,采场稳定性较好.
Abstract
To determine the reasonable stope structural parameters for the sublevel drilling stage open stope and subsequent filling mining method in Hongling Lead-Zinc Mine,numerical simulation was employed to study 16 differ-ent scenarios with roof thicknesses of 3 m,5 m,7 m,and 10 m,and stope lengths of 20 m,30 m,40 m,and 60 m,re-spectively.The stress,displacement,and plastic zone distribution of each scenario with a roof thickness of 3 m were compared.The results indicate that the stability of the stope in Hongling Lead-Zinc Mine is fairly good when the roof thickness is 3 m and the stope length is 35 m for the sublevel drilling stage open stope and subsequent filling mining method.
关键词
分段凿岩/阶段空场嗣后充填/采场结构参数/顶板厚度/采场长度/采区稳定性Key words
sublevel drilling/stage open stope and subsequent filling mining/stope structural parameters/roof thick-ness/stope length/mining area stability引用本文复制引用
基金项目
国家自然科学基金面上项目(51974043)
出版年
2024
NETL
NSTL
万方数据