大花水碾压混凝土双曲薄拱坝施工技术及特点  

Construction technology and characteristics of Dahuashui double-curvature and thin arch RCC dam

作　　者：蒋建林[1] 何际勋 

机构地区：[1]武警水电第一总队第四支队,广西南宁530222

出　　处：《人民长江》2008年第9期77-80,共4页Yangtze River

摘　　要：大花水碾压混凝土双曲薄拱坝最大坝高134.5 m,体型小、结构复杂,是目前国际已建成的同类坝型中最高的双曲薄拱坝。工程工期紧,施工难度大。在施工中充分利用当今施工技术,大胆创新,采用深槽式高速皮带机和缓降溜管联合输送系统进行大规模的混凝土运输,并采用碾压混凝土斜层铺筑法和可调式全悬臂翻升模板施工等先进技术,在提高工程质量的同时,加快了施工进度,取得了显著的经济效益,为今后同类坝型施工提供了借鉴和指导。The double-curvature and thin arch RCC dam of Dahuashui hydropower station characterizes as high dam(the maximum dam height of 134.5 m),small dam body,complicated structure,and it is the highest double-curvature and thin arch dam having been built in the world at present.The construction period is pressing and construction is difficult.In the construction,taking use of new construction technology and renovating boldly,the co-transportation system of the deep chute and high speed belt conveyor and gentle sloping chute was used for large volume concrete transportation,and RCC slanting rolling construction and adjustable bracket form were adopted.Under the condition of construction quality guaranteed,the construction procedure was accelerated and obvious economic benefit was obtained.The construction experience can be referred by similar dam construction.

关 键 词：施工技术 双曲薄拱坝 碾压混凝土 大花水水电站 

分 类 号：TV642.42[水利工程—水利水电工程] TV544.921