寒区面坝板止水结构防冻措施探析  

Analysis on anti-freezing measures of dam plate sealing structure in cold area

作　　者：肖阳 赵洪光 陈惠龙 董占坤 付景琨 XIAO Yang;ZHAO Hong-guang;CHEN Hui-long;DONG Zhan-kun;FU Jing-kun

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130061 [2]国网黑龙江省电力有限公司牡丹江水力发电总厂,黑龙江牡丹江157005

出　　处：《东北水利水电》2024年第9期56-60,72,共6页Water Resources & Hydropower of Northeast China

摘　　要：寒区面板坝止水结构因低温易产生冰冻破坏,严重影响大坝的稳定性与安全性。本文通过对寒区面坝板止水结构冻害机理和破坏的分析,总结了目前解决止水结构受冻害的防冻措施和方法。同时,基于电伴热良好的防冻能力,对电伴热技术在寒区混凝土面板坝止水结构抗冻中的应用进行了可行性分析,同步结合传热过程的分析,提出电伴热系统的功率选用和布置设计的方法,为寒区混凝土面板坝止水结构的抗冻设计提供新的思路和参考。The sealing structure of face dam in cold area is easily damaged by freezing due to low temperature,which seriously af⁃fects the stability and safety of dam.Based on the analysis of freezing damage mechanism and damage of dam plate sealing structure in cold area,this paper summarizes the current anti-freezing measures and methods to solve freezing damage of sealing structure.At the same time,based on the good anti-freezing ability of electric heat tracing technology,the feasibility analysis of the application of electric heat tracing technology in the anti-freezing structure of concrete face dam in cold areas is carried out.Combined with the analysis of heat transfer process,the power selection and layout design method of electric heat tracing system is proposed,which provides a new idea and reference for the anti-freezing design of concrete face dam in cold areas.

关 键 词：止水结构 寒区大坝 电伴热 防冻 

分 类 号：TV698.26[水利工程—水利水电工程]