资水梯级电站施工期闸孔通航方式工程实践

Engineering practice of sluice navigation during construction period of Zishui cascade hydropower stations

有通航要求的水利水电工程施工期通航问题,是施工导流设计和工程实施期间需要妥善解决的问题之一。以资水柘溪电站以下河段修建的修山水电站、东坪水电站和株溪口水电站工程为例,介绍了施工期利用工程既有的闸孔通航并取得较好技术经济效果的实际做法。工程实践表明,利用闸孔通航,技术上是可行的,并具有导流程序简单、施工期通航工程措施费用低、电站发电时间可提前等优点,经济效益显著。其工程经验可在类似工程中推广应用。

Navigation during construction period should be properly solved during the construction diversion design.The navigation during construction utilizing built sluice at Xiushan,Dongping and Zhuxikou Hydropower Stations at downstream reach of Zhexi Hydropower Station on Zishui River in Hunan Province were presented.The practice shows that the construction navigation by sluice is feasible and has advantages of convenient diversion design,low cost and short power generation construction period,therefore leads to high economic benefit.