期刊论文

Liu, Y.-L.(zhongguoliuyulong@163.com)

中文

采矿与安全工程学报

1673-3363

2013

30

4

526-530

国家自然科学基金项目（10975071）；

本校为第一且通讯机构

以某铀矿山中和后的堆浸尾渣为骨料,制备了渣浆体积分数为78%,80%和83%,灰渣比为1∶6,1∶8,1∶10,1∶15,1∶20,1∶25,1∶30的尾渣胶结充填料试样,经不同养护时间后,测定了它们的单轴抗压强度;建立了尾渣胶结充填体固化强度与养护时间的关系。结果表明,最终强度值、强度响应系数、强度增长稳定时间和初始强度（t=3）等力学参数能定量描述不同尾渣胶结充填体的强度随养护时间的变化特征。引入能量匹配系数表征岩体开挖释放比能与充填体变形比能关系,得到上向进路胶结充填采矿法中一步骤充填体固化时间与二步骤矿体回采时间匹配与矿岩容重、矿岩埋深、矿岩弹性模量、充填体灰渣比、渣浆体积分数和养...

Samples, with slurry concentrations of 78%, 80% and 83%, cement-tailing ratios of 1:6, 1:8, 1:10, 1:15, 1:20, 1:25 and 1:30 and different curing time, were prepared by using the neutralized uranium tailings from heap leaching as the aggregate, and the uniaxial compressive strengths for the samples were measured. The relationships between the cemented tailings strength and the curing time were established by experimental data fitting. The results showed that the mechanical parameters for the relationships, such as final strength of cemented tailings, strength response factor, time needed for st...