级配对砂泥岩混合料压缩特性的影响  

Effect of Particle Size of Sandstone-mudstone Particle Mixture on Compression Properties

作　　者：栗维 郝建云[1,2] 

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]重庆交通大学水利水运工程教育部重点实验室,重庆400074

出　　处：《嘉应学院学报》2015年第2期49-53,共5页Journal of Jiaying University

摘　　要：为了研究颗粒粒径对砂泥岩混合料压缩特性的影响,在一定的砂泥岩比例、干密度以及含水率的条件下,采用杠杆式压缩固结仪对5种不同试验级配下的砂泥岩混合料土样进行快速室内侧限压缩实验,得出5种级配下土样的e-p曲线和e-lgp曲线,并计算出土样的孔隙比、压缩系数、压缩指数等压缩指标.探讨了砂泥岩混合料压缩特性与颗粒粒径的关系,分析了试验土体颗粒级配特征值对砂泥岩混合料压缩特性的影响,为实际工程应用提供了参考依据.In order to study on the effect of particle size of Sandstone - mudstone particle mixture on compression properties, under the determined proportion of Sandstone - mudstone particle mixture, dry density and water con- tent, we used five kinds of gradation of Sandstone -mudstone particle mixture with confined compression test in lab with lever - type compression eonsolidometer, and obtained five kinds of gradation of e - p curve and e - lgp curve, calculated viod ratio, compressibility and compression index .etc. We studied on the relationship between compres- sion properties of Sandstone - mudstone particle mixture and particle size, and analysed the effect of particle grada- tion eigcnvalue of Sandstone - mudstone Particle Mixture on compression properties, then provided reference for the application in future engineering.

关 键 词：砂泥岩混合料 颗粒粒径 颗粒级配 压缩试验 压缩系数 压缩指数 

分 类 号：TU411.5[建筑科学—岩土工程]