南水北调渠道膨胀土复核勘察与防治措施研究  

Investigation and control measures of expansive soil in the channel of South-to-North Water Diversion Project

作　　者：柳东亮[1] 兰景岩[1] LIU Dong-liang;LAN Jing-yan(Hebei Research Institute of Investigation&Design of Water Conservancy&Hydropower,Tianjin 300250,China)

机构地区：[1]河北省水利水电勘测设计研究院

出　　处：《水科学与工程技术》2019年第4期93-96,共4页Water Sciences and Engineering Technology

摘　　要：南水北调中线总干渠设计桩号172+000~173+100冰水碛(fglQ1)黏土在初步设计阶段勘察自由膨胀率最大值为35%,为疑似膨胀土。为彻底查明该段渠道岩土膨胀特性,确保渠道边坡设计安全,施工阶段对该段存疑渠段进行了复核勘察,通过试验成果分析和膨胀土防治措施分析比较,为膨胀土渠道边坡防治提出了针对性措施和建议。The maximum free expansion rate of fglQ1 clay in the preliminary design stage is 35%,which is suspected expansive soil.In order to find out the expansion characteristics of the canal,and to ensure the safety of the design of the canal slope,the section of the open channel was reinspected during the construction stage.

关 键 词：南水北调 膨胀岩土 勘察 防治措施 

分 类 号：P642[天文地球—工程地质学]