海岛强腐蚀环境下某变电站混凝土结构耐久性评估  

Durability Evaluation of Concrete Structure of a Substation Under Strong Corrosion Environment on an Island

作　　者：吴亮 俞铁勇 张军[3] 张凯 毛江鸿[3] WU Liang;YU Tieyong;ZHANG Jun;ZHANG Kai;MAO Jianghong(China Energy Engineering Group Zhejiang Electric Power Design Institute Co.,Ltd.,Hangzhou,Zhejiang 310012,China;State Grid Zhoushan Power Company,Zhoushan,Zhejiang 316004,China;Zhejiang University Ningbo Institute of Technology,Ningbo,Zhejiang 315100,China)

机构地区：[1]中国能源建设集团浙江省电力设计院有限公司,浙江杭州310012 [2]国网舟山供电公司,浙江舟山316004 [3]浙大宁波理工学院,浙江宁波315100

出　　处：《建筑施工》2020年第8期1574-1576,共3页Building Construction

基　　金：国家自然科学基金项目(51820105012);浙江省自然科学基金项目(LY18E080003,LQ19E080011)。

摘　　要：结合某岛屿变电站土建结构的耐久性劣化情况的调研结果,对海岛强腐蚀环境下,混凝土结构的耐久性进行了评估。考虑杂散电流作用下氯离子的侵蚀过程,基于Fick第二定律对不同环境和部位下的构件进行了耐久性寿命预测和分析,指出混凝土保护层厚度是保证变电站土建结构耐久性的最关键因素。Based on the investigation results of durability deterioration of civil engineering structure on an island substation,the durability of concrete structure under island strong corrosion environment is evaluated.Considering the chloride erosion process under the action of stray current and based on Fick's second law,the durability life of members under different environments and parts was predicted and analyzed and it was pointed out that the thickness of concrete cover was the most important factor to ensure the durability of substation civil structure.

关 键 词：变电站 海洋环境 混凝土结构 氯离子侵蚀 耐久性寿命 

分 类 号：TU528[建筑科学—建筑技术科学]