黄金科学技术 ›› 2024, Vol. 32 ›› Issue (3): 445-457.doi: 10.11872/j.issn.1005-2518.2024.03.042
虞云林1(),侯克鹏2,杨八九1(),程涌1,卢泰宏3,张楠楠3
Yunlin YU1(),Kepeng HOU2,Bajiu YANG1(),Yong CHENG1,Taihong LU3,Nannan ZHANG3
摘要:
为了更合理地回收云锡老厂分公司残矿资源,运用FLAC3D数值模拟软件对高峰山矿段残留矿柱回采进行模拟分析,提出6种不同的矿柱回收方案,针对分析结果确定了合适的矿柱回采工艺,并开展了工业试验。结合矿山实际情况,从多个维度分析剩余矿柱是否具备回收条件和回收价值。结果表明:可采用进路规格为4 m×4 m的两步骤胶结充填采矿法进行矿柱回采,一步骤胶结充填强度大于3.52 MPa,二步骤充填强度大于1.08 MPa;矿段内有4条矿柱相对完整、保有资源量大且品位高,现阶段具备回采条件,其中南盘区4#盘区矿柱需在锡精矿市场金属价格大于24.48万元/t时进行回采,其余3条矿柱可在锡精矿市场金属价格大于10.05万元/t时进行回采。
中图分类号:
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