夹岩水利枢纽工程坝后电站取水口金属结构设计方案比选

Review on water intake metal structure design of hydropower station behind dam of Jiayan Hydro-complex Project

贵州省夹岩水利枢纽工程水库取水范围较大,为了满足引水质量的要求,实施分层取水。结合工程实际对设置多层取水口和叠梁门的两种分层取水方式进行了比选,最终确定采用布置多层取水口的方案。介绍了坝后电站取水口金属结构设备的布置、选型及设计思路。经论证,该工程金属结构布置紧凑、结构合理、工程量经济、设备运行维护良好,可供同类工程设计参考。

The water intake of the power station of Jiayan Hydro-complex Project covers a large range.To meet the water quality requirement,layered water intake was schemed.Two water intaking schemes of multi-layer water in⁃taking and stoplog gate were compared by considering the construction conditions.The multi-layer water intaking scheme was adopted.The layout,type selection and design ideas of the metal structure of the water intake of the hy⁃dropower station behind the dam are introduced.The demonstration showed that the metal structure of the project is compact in layout,reasonable in structure,economic in engineering quantity and easy in equipment operation and maintenance.The design can be used as reference for similar projects.