周国强.HK-966聚氨酯弹性涂料在寒冷地区面板防冰设计中的应用[J].中国水利水电科学研究院学报,2017,(3):218-222
HK-966聚氨酯弹性涂料在寒冷地区面板防冰设计中的应用
Application of HK-966 elastic coating in the design of concrete panel anti-icing of Baoping hydropower station
投稿时间:2016-01-29  
DOI:10.13244/j.cnki.jiwhr.2017.03.009
中文关键词:  混凝土面板裂缝  HK-966聚氨酯弹性涂料  混凝土面板防结冰设计  冻融循环
英文关键词:cracks of CFRD  HK966 elastic polyurethane coating  freezing resistance design of concrete face slab  freezing and thawing circle
基金项目:
作者单位
周国强 中国市政工程西北设计研究院有限公司, 甘肃 兰州 730000 
摘要点击次数: 120
全文下载次数: 190
中文摘要:
      对于高寒地区的面板堆石坝,水位变幅区面板的防结冰设计一直是个较难解决的问题。由于渗透作用,使渗水进入面板混凝土,在冬季低温情况下,面板迎水面和渗入面板的水同时结冰,造成面板和库面冰体连接在一起,在水位发生变化时,对面板产生很大的拖曳力,很容易造成面板损坏,长时间的冻融循环,加速了面板混凝土老化、碳化和开裂现象。本文通过新型防渗涂料HK-966在宝瓶水电站工程面板防结冰设计中的成功应用经验,对HK-966的防结冰原理及施工方法进行介绍,对高寒地区面板的防结冰设计提供了新的思路,其成功经验值得推广。
英文摘要:
      For a concrete Face Rockfill Dam (CFRD) built in a cold region, the freezing resistance de-sign of concrete face slabs in water level fluctuation zone is a rather difficult task.As water can permeate into concrete, the water at upstream face and inside concrete face slabs will freeze due to low tempera-ture in winter.Concrete face slabs are connected with the ice of reservoir.When reservoir water level changes, great drag force will be applied on face slabs, which may cause the damage of face slabs.With long-term circle of freezing and thawing, the aging, carbonizing and cracking of concrete face slabs will de-velop.The paper introduces the successful experience of the freezing resistance design for the face slabs of Boping CFRD by using the new type HK-966 watertight coating.The mechanism of the freezing resistance of HK-966 coating is analyzed and the method of construction is presented.The application of HK-966 freezing resistance coating provides a new idea for the freezing resistance design of CFRDs built in cold re-gions and its experience can be used as reference for other projects.
查看全文  查看/发表评论  下载PDF阅读器
关闭