老挝南俄1水电站扩机工程进水口围堰设计研究  

Design of the Intake Cofferdam for the Expansion Work of Nam Ngum 1 Hydropower Station in Laos

作　　者：齐正斌 QI Zhengbin(Powerehina Kunming Engineering Co.,Ltd.,Kunming 650051,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《水电与新能源》2018年第9期31-34,共4页Hydropower and New Energy

摘　　要：老挝南俄1水电站扩机工程采用在库内新建电站进水口的方式,业主要求在不影响水库正常运行的情况下施工,电站进水口底板高程位于低运行水位以下17 m,且距离1971年建成的大坝最近约80 m,通过对地质地形条件及多种围堰型式研究,合理的确定采用预留岩埂+上部混凝土围堰的方式进行挡水。In Nam Ngum 1 Hydropower Station in Laos,the expansion work is carried out by constructing new water intake in the reservoir,while it is requested by the owner that the normal operation of the reservoir should not be affected.Considering the specific conditions of the work and the geological and topographical conditions,such as the bottom elevation of the new water intake is 17 m below the low operation water level,and the minimum distance between the water intake and the dam is about 80 m,various types of the cofferdam are studied. Then,a reasonable scheme with a reserved rock dyke and the upper concrete cofferdam is selected for the water retaining.

关 键 词：南俄1水电站 扩机工程 进水口 围堰设计 

分 类 号：TV551[水利工程—水利水电工程]