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九甸峡水利枢纽工程混凝土面板堆石坝建在深厚覆盖层上,坝址处为不对称狭窄河谷,岸坡陡峭。在高陡岸坡处理、深厚覆盖层基础处理、高地震区抗震措施以及高寒、高海拔地区堆石坝施工技术等专题研究的基础上,对混凝土面板堆石坝、坝基开挖及基础处理以及坝基深覆盖层处理进行了设计,并对坝体稳定性及应力应变进行了分析。计算和观测数据分析表明,其成果满足规范要求,为深厚覆盖层及不对称狭窄河谷上建造高面板堆石坝的一次成功探索。
The concrete face rockfill dam of Jiudianxia Water Conservancy Project is built on the deep overburden with asymmetric narrow valleys and steep bank slopes. Based on the researches on the steep bank slope treatment, the deep foundation treatment, the seismic measures in the high earthquake area and the construction technology of the rockfill dam in the alpine and high altitude areas, the concrete face rockfill dam, foundation excavation and foundation treatment, as well as The dam foundation deep overburden treatment was designed, and the stability and stress-strain of the dam were analyzed. Computational and observational data analysis shows that the results meet the specifications and provide a successful exploration of the construction of high concrete face rockfill dam on deep overburden and asymmetric narrow valleys.