水文地质工程地质2018，Vol.45Issue(2)：51-58,8.DOI:10.16030/j.cnki.issn.1000-3665.2018.02.08
含水率与加筋率对加筋土抗剪强度的影响规律研究
A study of influence of water content and reinforcement ratio on the shear strength of reinforced soil
摘要
Abstract
It is important to study the effect of water content and reinforcement rate on the strength of rice straw-reinforced soil,which has an important effect on promoting the application of rice straw-reinforced soil in slope ecological protection.The moisture content of the six kinds of reinforcement ratios (0 to 0.5％) was changed by adding water and with the drying method,and the indoor direct shear tests were carried out.The result shows that (1) the shearing strength,cohesive force and internal friction angle of the reinforced soil samples,which are obtained by the adding water method,increase first and then decrease with the increasing water content under different rates of reinforcement.When the water content is 14.8％,their peak values appear.The shearing strength,cohesive force and internal friction angle of the reinforced soil samples,which are obtained by the drying method,decrease gradually with the increasing water content.(2) The shear strength,cohesive force and friction angle,which are obtained by adding water and with drying method,all have a critical value of moisture content,which is about 19％.(3) Under the same growth rate,the effect of moisture contents on the shear strength of the reinforced soil is greater than the reinforcement ratio.关键词
边坡生态防护/稻秸秆加筋土/抗剪强度/含水率/加筋率Key words
slope ecological protection/reinforced soil with rice straw stalk/shear strength/water content/reinforcement ratio分类
建筑与水利引用本文复制引用
沙琳川,王桂尧,张永杰,唐前松,马吉倩,张红日..含水率与加筋率对加筋土抗剪强度的影响规律研究[J].水文地质工程地质,2018,45(2):51-58,8.基金项目
国家自然科学基金项目资助(51178063,51578082) （51178063,51578082）
湖南省交通科技计划项目资助(201514) （201514）
湖南省研究生创新项目资助(CX2015B354) （CX2015B354）
广西交通科学研究院科技项目资助(KJ2014-014) （KJ2014-014）
