Comprehensive Comparison of Flood Releasing Structures for Lower Reservoir of Guilin Pumped Storage Power Station in Guangxi
As an important hydraulic structure to ensure the safety of pumped storage power station dam,the rationality of flood releasing structure design directly affects the safety and economy of the whole project.Aiming at the deep V-shaped valley terrain,large flood discharge and high excavation slope of the lower reservoir of Guilin Pumped Storage Power Station,the authors comprehensively compare and select the layout scheme of the lower reservoir flood releasing structure from the perspective of hub layout,construction conditions and project investment in combination with the engineering hydrological and geological conditions.Finally,the layout scheme of free overflow shaft spillway tunnel on the left bank and flood discharge cavity on the right bank is adopted.The research results can provide reference for the design of flood releasing structure in similar projects.
pumped storage power stationlower reservoirflood releasing structurecrest outletbottom outlet
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