江西建材Issue(5)：122-124,130,4.
水电站泵送大体积混凝土塑性裂缝及控制措施
Plastic Crack and Control Measures of Pumped Mass Concrete in Hydropower Station
杨秀高1
作者信息
- 1. 贵州新中水工程有限公司,贵州 贵阳 550000
- 折叠
摘要
Abstract
In order to improve the mass concrete construction quality of hydropower station,this paper takes a Grade 3 hydropower station in Guizhou Province as an example to study the concrete crack characteristics of lock chamber and stilling pool floor,and puts forward specific control measures.The practice shows that the longest surface crack of concrete on the floor of lock chamber is 218.75mm,and the longest surface crack of concrete on the floor of stilling pool is 124.42mm,which are plastic collapse cracks and plastic shrinkage cracks respectively,and both of them exceed the threshold value of crack width specification,and should be strengthened.After adopting epoxy grouting+carbon fiber mesh composite technology to stiffen the lock chamber and flexible waterstop+silane impregnation composite technology to repair the stilling pool,all the monitoring indexes meet the requirements of the standard and the construction effect is good.关键词
大坝/大体积混凝土/塑性裂缝/闸室底板加固/消力池修补Key words
Dam/Mass concrete/Plastic crack/Gate chamber floor reinforcement/Stilling pool repair分类
水利科学引用本文复制引用
杨秀高..水电站泵送大体积混凝土塑性裂缝及控制措施[J].江西建材,2025,(5):122-124,130,4.
