摘要
紫金山金铜矿为露天转地下开采,为了保障地下开采安全,需对井下采空区进行分级尾砂充填。因此,展开了充填体室内试验。选用紫金山金铜矿的分级尾砂制成不同配比条件下的圆柱形试件,研究试件在不同围压、灰砂比、浓度的条件下的三轴抗压强度和变形破坏特征,以选择出适合矿山充填的配比参数。
With the use of underground mining transferred from open-pit in Zijinshan gold-copper mine, in order to ensure the safety, the underground goal needed to be filled by classified tailings. Therefore, the laboratory tests on the filling body were conducted. The classified tailings in Zijinshan gold-copper mine was selected to prepare the cylinder specimens under different proportions. Triaxial compressive strength and deformation fracture features of specimens under different confining pressures, cement-sand ratios and concentrations were studied, so as to select the suitable proportional parameters of mine filling.
作者
付玉华
陈伟
杨世兴
FU Yuhua YANG Shixing CHEN Wei(School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China School of Applied Science, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China Zijin Mining Group Company Ltd, Longyan, Fujian 364000, China)
出处
《矿业研究与开发》
CAS
北大核心
2017年第3期74-76,共3页
Mining Research and Development
基金
国家自然科学基金资助项目(51464015)
江西省教育厅2015年度科学技术研究重点项目(GJJ151519)
关键词
充填体
分级尾砂
抗压强度
力学特性
Filling body, Classified tailings, Compressive strength, Mechanical properties
