Prestressed anchor-bar construction in spillway tunnel of Xiluodu hydropower station on right bank

For prestressed anchor- bar construction, the construction technology requirement is high, the working procedures link up closely, and the requirement on the working area is also high in construction. The working area of spillway tunnel of Xiluodu hydropower station on the right bank is narrow, resulting in difficult construction. In order to guarantee construction quality and progress, tentative production was carried out before formal construction, construction methods were compared and selected and the suitable construction parameters were determined. In the construction, some parameters related with machinery platform, various equipments, material were adjusted for further optimization of prestressed anchor-bar construction.