高混凝土面板堆石坝接缝止水试验研究和应用  

Mechanical properties of new type of joint waterstop for high CFRDs and its application

作　　者：郦能惠[1] 王立安 任强[1] 张志韬 张贤[1] 王新奇 代巧枝 LI Nenghui;WANG Li'an;REN Qiang;ZHANG Zhitao;ZHANG Xian;WANG Xinqi;DAI Qiaozhi(Geotechnical Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210024,China;Yellow River Engineering Consulting Co.Ltd.,Zhengzhou 450031,China)

机构地区：[1]南京水利科学研究院岩土工程研究所,江苏南京210024 [2]黄河勘测规划设计研究院有限公司,河南郑州450031

出　　处：《岩土工程学报》2025年第1期30-37,共8页Chinese Journal of Geotechnical Engineering

摘　　要：混凝土面板堆石坝是当前最有竞争力的坝型,为保障高混凝土面板堆石坝的安全,坝体和面板的应力变形性状以及接缝位移成为研究的重点之一,通过止水材料开发、接缝止水结构设计和止水结构防渗模型试验研究提出了高混凝土面板堆石坝新型止水结构,并应用于高混凝土面板堆石坝工程。在此基础上进行了高坝新型接缝止水结构力学特性试验研究,形成了试验方法,建立了高坝新型止水结构的劲度表达式,通过在某高坝工程的应用表明提出的接缝止水应力应变关系全面反映高坝新型止水结构各主要部件对于面板与趾板以及面板之间力的传递的贡献,更好地反映复杂地形地质条件下高坝设计布置的影响,具有一定的工程应用价值。The concrete face rockfill dam(CFRD)is one of the most competitively powerful dam types now.In order to ensure the safety of high CFRDs the stress and strain behaviors of dam body and concrete face as well as the displacements of joints have become the point of engineering researches.A new type of joint waterstop is put forword and used in several high CFRDs.The mechanical properties of the new type of joint waterstop for high CFRDs are investigated,and a series of stiffness expressions for three-dimension displacements of joints are established.The proposed stiffness expressions can represent the contribution of main components of waterstop to the force transfer from face slab to face slab and from face slab to plinth,and then the influences of arrangement of the high CFRDs on the stress and strain behaviors of CFRDs especially under complex topographical and serological conditions are revealed.

关 键 词：混凝土面板堆石坝 接缝止水 应力变形性状 劲度表达式 

分 类 号：TV641[水利工程—水利水电工程]