红水河2025，Vol.44Issue(4)：78-83,6.DOI:10.3969/j.issn.1001-408X.2025.04.017
抽水蓄能电站上水库导流隧洞洞径与围堰高度协同优化设计研究
Coordinated Optimization Design of Diversion Tunnel Diameter and Cofferdam Height in Upper Reservoir of Pumped Storage Power Station
彭岗维1
作者信息
- 1. 中国能源建设集团广西电力设计研究院有限公司,广西 南宁 530007
- 折叠
摘要
Abstract
In addressing the coordinated optimization of diversion tunnel diameter and cofferdam height within the construction diversion system of a pumped storage power station,this study takes the upper reservoir project of Laibin Pumped Storage Power Station as its research object.A systematic investigation is conducted using a method that integrates hydraulic calculation and economic analysis.Under the constraints of meeting the design flow rate and geological conditions,three tunnel diameter schemes are compared and analyzed.The research results indicate that:1)A significant negative correlation exists between the tunnel diameter and the cofferdam height;2)Although the small-diameter scheme requires the lowest investment,it necessitates the construction of a 20-meter-high cofferdam,implying higher construction risks;3)The large-diameter scheme is less economical due to a cost increase of 620000 yuan in excavation and support compared to the small-diameter scheme;4)The coordinated optimization scheme for tunnel diameter and cofferdam height achieves an optimal balance between project safety and economy.Its investment is only 70000 yuan higher than that of the small-diameter scheme,its flow capacity meets the requirements for a 50-year flood event,and the tunnel space facilitates mechanized construction.The research findings demonstrate that the coordinated optimization method is highly effective in reducing project costs and controlling construction risks,providing a scientific basis for the design of similar projects.关键词
抽水蓄能电站/导流隧洞/围堰高度/协同优化/经济性分析Key words
pumped storage power station/diversion tunnel/cofferdam height/coordinated optimization/economic analysis分类
建筑与水利引用本文复制引用
彭岗维..抽水蓄能电站上水库导流隧洞洞径与围堰高度协同优化设计研究[J].红水河,2025,44(4):78-83,6.
