中断面圆形隧洞混凝土衬砌快速施工方法

Rapid Construction of Concrete Lining for Circular Tunnel with Middle Section

达开水电站冲砂隧洞全长395.3 m,采用快速施工技术对隧洞进行混凝土衬砌,仅40 d就完成整个洞身的混凝土衬砌工作,日衬砌混凝土9.9 m,创造了较快的中断面圆形隧洞混凝土衬砌记录。文章对施工中采取的一些新工艺、新方法进行了介绍,并对该方法的优缺点进行了评析。

The scouring tunnel of Dakai Hydropower Station, being 395.3 meters long, is lined with concrete by using a rapid construction technique in 40 days, accomplishing the lining of 9.9 meters every day to create a faster construction record in concrete lining for a circular tunnel with a middle section. Some new methods adopted in the construction of concrete lining are introduced and evaluated.