尾矿物理性质代表参数的研究  

Study on the Representative Parameters of the Physical Properties of Tailings

作　　者：曹作忠[1,2,3] 张默[1,3] 朱君星[1,2] 江东平[1,2] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司,安徽马鞍山243000 [2]金属矿山安全与健康国家重点实验室,安徽马鞍山243000 [3]金属矿产资源高效循环利用国家工程研究中心,安徽马鞍山243000

出　　处：《金属矿山》2014年第10期152-156,共5页Metal Mine

基　　金："十二五"国家科技支撑计划项目(编号:2012BAK09B05)

摘　　要：尾矿的物理性质是影响尾矿坝安全稳定性的重要因素。目前描述尾矿物理性质的参数较多,但经济性和实用性较差。本研究运用数理统计方法,深入研究尾矿各物理性质参数间的相关性,根据相关程度将尾矿物理性质参数分为3类,第1类组合为孔隙比、含水量、压缩系数;第2类组合为压缩模量、土粒比重、干密度、湿密度;第3类组合为固结系数、渗透系数、不均匀系数、限制粒径、有效粒径。根据同类指标相关系数平均值得出各分类参数的代表值为孔隙比、湿密度和渗透系数。该成果揭示了尾矿物理性质参数的本质联系,对尾矿坝稳定性分析时物理参数的选取具有指导意义。Physical properties of tailings is an important factor affecting the safety and stability of tailings dam.At present,many physical parameters of tailings are described,but economy and practicability is poor.With the method of mathematical statistics,the physical properties of tailings correlation between parameters are in-depth studied.According to the correlation,the physical property parameters of tailings are divided into three categories,the first category is the combination of void ratio,water content and compressibility;the second category is the combination of compression modulus,specific gravity of soil particle,dry density and wet density ;the third category is the combination of consolidation,permeability,uniformity,constrained diameter and effective diameter.According to the average correlation coefficient of similar indicators,the representative parameters of each category are void ratio,wet density and permeability.The results revealed the essential connection among physical property parameters of tailings,which has the guiding significance for selecting the physical parameters of the stability analysis of tailings dam.

关 键 词：尾矿 物理性质 参数 聚类分析 相关程度 分类 代表参数 

分 类 号：TD926[矿业工程—选矿]