摘要
本文通过尾砂胶结充填体配比试验,研究了尾砂胶结充填体强度与试样尺寸和几何形状之间的关系。试验研究结果表明:在相同条件下,胶结充填体强度在试验范围内,随试样尺寸的增加而减小,其呈非线性变化;不同尺寸与几何形状的胶结充填体试样强度之间的换算比例关系为:152mm充填体试样强度大致为72mm和85mm试样强度的3/4,为70.7mm立方体试样强度的3/5。
This paper researches relation of compressive strength of cemented tailings fill and size、geometries of cemented backfill.The test results show under same condition compressive strength of cemented tailings fill will minish with size increasing,it show itself non-linear variety.150mm diameter cylinder specimen fill strength averaged approximately three-quarter of 72mm and 85mm diameter cylinders specimen,about three fifths of 70.7mm cubes specimen.
出处
《中国矿业》
北大核心
2009年第7期88-90,共3页
China Mining Magazine
关键词
尾砂胶结充填体
尺寸效应
强度换算
cemented tailings fill
size effect
strength conversion
