摘要
湖北黄龙滩水电站尾水渠由于长期受高速水流冲刷,临河侧基础形成了较大冲坑,危及尾水渠及电站的安全运行,为此对冲坑的处理分二期进行施工,一期工程用水下不扩散混凝土直接回填冲坑,二期工程是开挖深槽浇筑混凝土防冲墙。回填工程用水下不扩散混凝土絮凝剂拌制混凝土拌合物,用混凝土泵通过导管将混凝土送入水下仓面浇筑,混凝土能充填冲坑孔隙,混凝土强度也较高。
Because of long time scouring on the trail channel of Huanglongtan Station, the scouring kettles were observed on the basement adjacent to the river.The mend to the scouring kettle was dived into two stages.The first stage was emergency treatment,which directly backfill the scouring kettle with non-dispersible concrete.Use the non-dispersible flocculating agent for mixing concrete, and pump them to underwater casting face, which got better effects.
出处
《混凝土》
CAS
CSCD
北大核心
2008年第2期119-121,共3页
Concrete
关键词
水下施工
不扩散混凝土
基础工程
加固
underwater construction
non-dispersible concrete
foundation engineering
reinforce
