洪家渡面板堆石坝接缝止水设计

Design of Water-stop in Joint of Hongjiadu Face Rockfill Dam

针对洪家渡面板堆石坝坝高 179 5m ,地处岩溶峡谷地区 ,左岸陡峻、左右岸地形不对称的特点 ,在面板坝接缝止水设计中 ,借鉴国内外面板堆石坝建设的最新成果和经验 ,对原初步设计进行了止水优化。并结合科研项目通过周边缝表层止水结构模型试验和止水结构的设计研究 ,提出了改进设计的措施。

Hongjiadu face rockfill dam with a height of 179.5 m located at a karst gorge, which left bank is high and precipitous, and the topography of left and right banks is asymmetrical. According to those features, in design of water stop in joint of the dam, its original design was optimized, used the experience and newest achievements of constructing face rockfill dam in home and abroad for reference. As well as combining the model test of water stop structure of peripheral joint surface and design research of water stop structure, the paper raises some measures for improving the design.