高流速水下混凝土护岸修复施工技术

Construction Technology for Repairing Underwater Concrete Bank Protection with High Velocity Flow

结合工程实际情况针对导流洞出口导墙水下混凝土浇筑采取了砂袋堆码成墙作为水下混凝土模板的施工方法,有效的解决了高流速区水下无法立模的问题,安全高效的完成了对导墙混凝土空洞部位的加固修复。该项目水下混凝土浇筑采用了排架固定沙袋代替传统模板方法,有效解决了水下无法立模的难题,比传统的采取填筑围堰之后再施工的方法极大的节约了工程投入的费用,并且可以快速的完成相关部位的施工以满足工程需要,具有良好经济效益。

Combining with the actual situation of the project,for underwater concrete placing of the guide wall at the outlet of the diversion tunnel,the construction method of stacking sand bags into walls as underwater concrete formwork is adopted in this paper.It effectively solves the problem that the formwork can’t be erected under water in the high flow rate area,and completes the reinforcement and repair of the concrete hollow part of the guide wall safely and efficiently.Underwater concrete placing of this project uses bent fixed sand bags instead of traditional formwork method,which effectively solves the problem that the formwork can’t be erected under water.Compared with traditional method of filling cofferdam and then construction,it greatly saves the cost of project investment and can quickly complete the construction of relevant parts to meet the needs of the project,which has good economic benefits.