西线一期工程混凝土拱坝与混凝土面板堆石坝坝型比较研究——以热巴坝址为例

The Study of Dam Type Comparison Between Concrete Arch Dam and Concrete Faced Rock-Filled Dam in First Stage of the Western Route Water-Transfer Project——Dam type comparison at Reba dam site

根据地形、地质条件及当地筑坝材料分析,以热巴坝址为典型代表的西线一期工程其河谷宽高比最小、坝基地质条件最好的高坝坝址,具备修建混凝土拱坝和混凝土面板坝的条件。进一步的研究和论证结果表明,修建混凝土拱坝和混凝土面板坝在技术上都是可行的,混凝土面板堆石坝方案在投资、工期及施工方面,优势明显。

According to the topographical,geological conditions and analysis of local dam materials,Reba dam site,which is one of typical high-dam sites in first stage of the Western Route water-transfer project,has the smallest width-height ratio and the most suitable foundation.Both concrete arch dam and concrete faced rock-filled dam slab are suitable at this site.Further studies and comparisons indicated that both types of dam were technically feasible and concrete faced rock-filled dam had distinct advantage in cost,project period and construction.