不同形状尺寸充填试样强度研究  

Study on the strength of packing specimens in different shape or size

作　　者：叶光祥 解联库[2] 郭利杰[2] 刘光生[2] 王贺[2] 

机构地区：[1]赣州有色冶金研究所,江西赣州241000 [2]北京矿冶研究总院,北京100160

出　　处：《中国矿业》2015年第10期128-131,共4页China Mining Magazine

基　　金：国家科技支撑计划项目资助(编号:2013BAB02B02)

摘　　要：通过开展不同形状、尺寸充填试样单轴抗压试验,进行全尾砂胶结充填体强度尺寸效应研究,探究全尾砂胶结充填体尺寸效应现象及不同形状与尺度充填试样间的强度换算。研究表明:在料浆砂灰比和浓度相同条件下,大尺寸充填试样抗压强度高于小尺寸充填试样;各形状及尺寸充填试样强度呈幂函数关系,强度间换算关系与砂灰比及料浆浓度无关,可由同一函数表达。This paper focuses on the size effect for compress strength of cemented tailings backfill, which obtained by uniaxial compression test with packing specimens in different shape or size, aiming to explore the size effect for compress strength of cemented tailings backfill phenomenon and the strength conversion among the backfill with different shape or size. The test results show that the compress strength of a bigger size filling body is higher than that of a smaller one; The relationship of uniaxiaI compress strength among is a power function, the strength conversion of backfill between different shape or size can be expressed by a same function which is independent with tailing-cements ratio and slurry concentration.

关 键 词：全尾砂胶结充填体 单轴抗压强度 尺寸效应 强度换算 

分 类 号：TD853.343[矿业工程—金属矿开采]