长江科学院院报2017，Vol.34Issue(12)：94-100,7.DOI:10.11988/ckyyb.20160816
碱污染红黏土抗剪强度特性室内试验研究
Laboratory Tests on Shear Strength Characteristics of Red Clay Polluted by Alkali
摘要
Abstract
In the aim of researching the shear strength properties of red clay under the condition of alkali pollution,laboratory simulation test with varying lye concentration and curing time was conducted to analyze the interaction between lye and red clay.Results showed that the shear strength,cohesion,and internal friction angle of the alkalipolluted red clay were higher than those of undisturbed red clay when the alkali concentration was high to some extent.The time when shear strength,cohesion and internal friction angle reached maximum was affected by lye concentration.On the contrary,in the presence of low lye concentration,the shear strength of alkali-polluted red clay decreased until a minimum value;while cohesion increased and then decreased,and internal friction angle decreased and then increased.Shear strength behaviors of red clay in the presence of alkali pollution is the result of hydration,ion adsorption,cation exchange,dissolution and external forces.关键词
碱污染/红黏土/抗剪特性/碱土作用/室内试验Key words
alkali contaminated/red clay/shear properties/action between alkali and red clay/laboratory tests分类
建筑与水利引用本文复制引用
陈筠,赵鹏,何维锋,王麒..碱污染红黏土抗剪强度特性室内试验研究[J].长江科学院院报,2017,34(12):94-100,7.基金项目
贵州省科学技术基金项目(黔科合J字[2015] 2033号) （黔科合J字[2015] 2033号）
贵州大学研究生创新基金项目(研理工2016041) （研理工2016041）
