三峡电站进水口体形优化试验研究

Summary on test for optimizing configuration of water-intake of Three Gorges Hydropower Station

在三峡电站进水口体形试验研究中,采用了对称喇叭型小进水口取代传统大进水口,其流态满足设计要求,水力损失小于大进口,而且改善了坝体的受力状况。在水力损失试验中,采用加大流量和提高库水位的办法来提高试验精度。

In the configaurtion test for water-intake of Three Gorges Hydropower Station,the small sized bell-mouth form is adopted to replaced the traditional large sized form,the flow condition through the symmetrical bellmouth intake meets the design requirement and the head loss is less than through the traditional form,thus the stress distribution in the dam is improved.In the head loss test,the measuring precision is improved by increasing discharge and raising reservoir stage.