某排土场岩土体物料物理性能试验研究  

Experimental Study on Physical Properties of Rock and Soil Materials in a Waste Dump

作　　者：周鹭 张众华 黄广黎 尹清海 曾霄祥 ZHOU Lu;ZHANG Zhonghua;HUANG Guangli;YIN Qinghai;ZENG Xiaoxiang(Yinshan Mining Co.Ltd.,Jiangxi Copper Gorporation;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;Huawei National Engineering Research Center of High Efficiency Cyclic Utilization for Metallic Mineral Resources Co.,Ltd.;State Key Laboratory of Safety and Health for Metal Mines;Key Laboratory of Disaster Prevention and Control for Non-coal Open-pit Mines,National Mine Safety Administration)

机构地区：[1]江西铜业集团银山矿业有限责任公司,江西省德兴市334200 [2]中钢集团马鞍山矿山研究总院股份有限公司,安徽省马鞍山市243000 [3]华唯金属矿产资源高效循环利用国家工程研究中心有限公司 [4]金属矿山安全与健康国家重点实验室 [5]非煤露天矿山灾害防控国家矿山安全监察局重点实验室

出　　处：《现代矿业》2025年第2期145-148,共4页Modern Mining

摘　　要：以长江中下游某平原地区排土场为例,对岩土体物料的天然密度、颗粒级配、现场渗透、抗剪强度进行试验,探究其各项物理性能。研究结果表明:排土场堆排物料性能较优,天然密度差值较小,颗粒级配良好;渗透高度随时间呈现先快后慢下降趋势,渗透系数为5.3×10^(-2)cm/s;天然状态变为饱和状态时,物料的黏聚力与内摩擦角均显著下降,且两者无明显关联。研究结果可为后期排土场边坡的稳定性分析提供有利依据。Taking a waste dump in a plain area in the middle and lower reaches of the Yangtze River as an example,the natural density,particle gradation,field permeability and shear strength of rock and soil materials are tested to explore the physical properties of rock and soil materials in the field.The results show that the material performance of the waste dump is better,the natural density difference is small,and the particle gradation is good.The penetration height showed a trend of first fast and then slow down with time,and the permeability coefficient is 5.3×10^(-2) cm/s.When the natural state becomes saturated,the cohesion and internal friction angle of the material decrease significantly,and there is no obvious correlation between the two.The research results can provide a favorable basis for the stability analysis of the waste dump slope in the later stage.

关 键 词：排土场 天然密度 颗粒级配 渗透系数 抗剪强度 

分 类 号：TD804[矿业工程—矿山开采]