论碾压混凝土大坝施工技术——以桂林恭城刘家洞水电站为例

Discussion on the Roller Compacted Concrete Dam Construction Technology——A Case of the Liu Jiadong Hydropower Dam in Gongcheng,Guilin

广西桂林恭城县刘家洞水电站枢纽工程的大坝设计坝型为全碾压混凝土重力坝,大坝总长166m,最大坝高60.7 m,坝项宽7 m,整个坝体共设置6条横缝。在碾压混凝土大坝的施工中,通过采用碾压混凝土传统的通仓薄层连续浇筑法与斜层平推铺筑法相结合的技术及横缝采用设置诱导孔等施工技术,提高了桂林恭城刘家洞水电站工程的质量,加快了施工进度,并取得了显著的经济效益。

The dam type design for Liu Jiadong hydropower dam in Gongcheng county, Guilin, Guangxi, is roller com- pacted concrete gravity dam. The total length is 166 meters, maximum height 60.7 meters, crest width 7 meters and there are altogather 6 transverse joints. Adopting such methods as confiniously pouring without longitudianl joint, the traditional roller compacted concrete, slop layer paving, setting inducing holes in the transverse joints and so on to, the construction has improved the dam quality, speeded up the construction pace and thus achieved obvious ecnomic profits.