水工隧洞预应力内衬施工关键技术研究

Research on Key Technology of Prestressed Inner Lining Construction of Hydraulic Tunnel

水工隧洞预应力内衬具有强度高、形变小、结构抗裂抗渗性好等优点,在深埋有压输水隧洞综合研究中技术和经济效益显著。文章结合某水工隧洞对预应力内衬施工工序、工法进行组织研究,优化设计预应力内衬底板及边顶拱施工技术,所得成果可推广应用到同类深埋长隧洞设计与施工建设。

The prestressed inner lining of hydraulic tunnel has the advantages of high strength and small deformation structure,good crack resistance and permeability resistance,the technical and economic benefits are remarkable in the comprehensive research of deep buried pressure water conveying tunnel.In this paper,the construction process method of prestressed inner lining is studied in combination with a hydraulic tunnel,and the construction technology of prestressed inner lining floor and side top arch is optimized.The results can be used in the design and construction of similar deep buried long tunnels.