目前在建中的委内瑞拉古里水力发电工程,后期将装机容量从200万千瓦增至1000万千瓦。为了便于开挖新尾水渠,需修筑一条围堰将新老尾水渠分隔开。经研究比较,以碾压混凝土围堰经济上合理,施工最快。总碾压方量15,600立方米,包括基础处理,同最大骨料2厘米或4厘米的常规混凝土平 Currently under construction in Venezuela Gu Li hydropower project, later installed capacity increased from 200 million kilowatts to 10 million kilowatts. In order to facilitate the excavation of new tailings, we need to build a cofferdam to separate the new tailrace. After research and comparison, RCC cofferdam is economically reasonable and the construction is the fastest. Total rolling square 15,600 cubic meters, including the basic treatment, with the largest aggregate 2 cm or 4 cm conventional concrete flat