郑晶星,陈健华,黄文锋,殷京科,章鹏,张蕊,熊富有

• 1:南方电网储能股份有限公司
• 2:中国水利水电科学研究院
• 3:中国水利水电第十四工程局有限公司

摘要(Abstract)：

抽水蓄能电站主体工程开工至首台机组发电的工期一般在50～60个月，水道充水是首台机组发电的关键线路节点。引水竖井具有施工工序多、施工难度大、安全风险高、质量不易控制等特点。针对这一问题，基于梅州抽水蓄能电站引水竖井建设，采用CFD软件对不同转弯半径对竖井弯段的水流流场、压力梯度及水头损失进行了分析，并研究了弯段半径优化、竖井反井钻孔开挖、竖井衬砌滑升等关键技术。研究发现当竖井弯段转弯半径由4倍洞径减小至2倍洞径时，水力特性指标变化不大，水头损失增加量约占输水系统总水头损失的0.18%,影响较小。结果表明：将转弯半径由4倍洞径优化为2倍洞径是可行的、合理的，并提出了竖井反井钻孔开挖、竖井衬砌滑升优化措施，降低了竖井施工难度和安全风险，提高了施工进度，为国内抽水蓄能电站主体工程施工41个月工期的最快纪录创造了基础。

关键词(KeyWords)： 水电工程;工期记录;技术优化;竖井建设;弯段半径

Abstract:

Keywords:

基金项目(Foundation): 国家重点工程广东梅州抽水蓄能电站工程(2015-441424-44-01-808491)

作者(Author): 郑晶星,陈健华,黄文锋,殷京科,章鹏,张蕊,熊富有

DOI: 10.13928/j.cnki.wrahe.2024.S2.052

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