赞比亚谦比希铜矿全尾砂膏体充填物料特性与优化  

Cemented Paste Backfill Material Characteristics and Adjustment in Chambishi Copper Mine of Zambia

作　　者：焦华喆[1] 吴爱祥[2] 王贻明[2] 王云飞[1] 

机构地区：[1]河南理工大学土木工程学院,河南焦作454000 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《有色金属工程》2015年第6期64-68,共5页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(50934002;51374034);"十二五"国家科技支撑计划项目(2012BAB08B02);河南理工大学博士基金资助项目(B2015-60)

摘　　要：对赞比亚谦比希铜矿充填系统膏体流变参数和强度进行检测试验,计算管道输送阻力和目标抗压强度,优化膏体配比。结果表明,在安全生产的前提下,充填体目标强度为0.5 MPa,沿程阻力损失应小于3.92 MPa/km。满足条件的膏体配比为灰砂比1∶12,膏体浓度70%,该配比可降低水泥用量28.52%,年节约充填成本373.8万美元。The paste rheological parameters and uniaxial compression strength（ UCS） of the paste backfill system in the Chambishi Copper Mine in Zambia are measured and tested. The target pipeline resistance and UCS value are calculated,the ratio of paste is optimized. The results show that under the premise of safety in production,the target UCS and resistance are 0. 5 MPa and 3. 92 MPa / km. The paste ratio of the cements to tailings satisfied the operating condition is 1∶ 12,and the solid concentration is 70 %. The cement consumption is decreased by 28. 52 %,the annual backfill cost is saved up to$ 3 738 000 under the optimal condition.

关 键 词：膏体充填 海外矿山 充填体强度 充填材料特性 

分 类 号：TD853.34[矿业工程—金属矿开采] TD862[矿业工程—矿山开采]