漩流式竖井泄洪洞在沙牌工程中的应用

结合模型试验、工程地质、地貌、枢纽布置条件，在沙牌水电站设计和布置了漩流竖井泄洪洞，并以其陡坡急流式短压力进水口区别于世界其它缓流进水的竖井泄洪洞，同时进行了完整的原型观测设计，以获取新型竖井泄洪设施的动水压力、水流空化、流速和通气量的资料。

Application of Votex Flow Shaft Spillway in Shapai Hydroelectric Project

In the light of the hydraulic model test results,the engineering geology,the topography & the project layout conditions,a votex flow shaft spillway was selected to be used at Shapai Hydroelectric Power Station during the project design.The shaft spillway has a steep slope rapid flow short intake which differs from other shaft spillways in the world with lagging water intakes.Besides,a complete prototype measurement system was designed to obtain the dynamic water pressure,flow cavitation,flow velocity & aeration coefficient of the new type shaft spillway.