堆石混凝土重力坝坝体防渗设计  

Anti-seepage Design of Rockfill Concrete Gravity Dam Body

作　　者：陈焕民 CHEN Huanmin(Qiandongnan State Water Conservancy Investment(Group)CO.LTD.,Kaili 556000,China)

机构地区：[1]黔东南州水利投资(集团)有限责任公司,贵州凯里556000

出　　处：《河南水利与南水北调》2024年第3期51-52,共2页Henan Water Resources & South-to-North Water Diversion

摘　　要：为确保堆石混凝土重力坝防渗设计可靠安全,本工程设计首次提出采用0.50 m厚W10防渗自密实混凝土与2.00 m厚防渗堆石混凝土共同构成大坝防渗体系的方案,通过水力坡降与承压水头计算复核大坝防渗层材料的设计抗渗等级、设计厚度均可满足现行规范要求,通过设置堆石外露区以提高坝体层间结合性能,并针对性提出防渗层水平施工缝的技术要求。In order to ensure the reliability and safety of anti-seepage design of rock-fill concrete gravity dam,the use of 0.5 m thick W10 anti-seepage self-compacting concrete and 2.0 m thick anti-seepage rock-fill concrete are firstly proposed to form a dam anti-seepage system.The design anti-seepage grade and design thickness of dam anti-seepage layer material can meet the requirements of current code by calculating hydraulic gradient and pressure head.The technical requirements of horizontal construction joint of impervious layer are put forward.

关 键 词：防渗堆石混凝土 防渗厚度 水力坡降 防渗等级 堆石外露区 

分 类 号：TV642.3[水利工程—水利水电工程]