猴子岩水电站高面板堆石坝设计

Design of high concrete face rockfill dam of Houziyan Hydropower Station

大渡河猴子岩水电站混凝土面板堆石坝为目前世界上已建和在建的同类型第二高坝,具有坝高、河谷狭窄、抗震设计烈度高等特点,其勘测设计工作难度大。经过大量试验研究并结合工程特点,设计人员在坝体变形控制、基础处理设计、防渗止水结构、结构抗震设计等方面采用创新方法,吸收了300米级建坝理念进行设计。详细介绍了大坝布置、坝体分区与坝料设计、坝基处理、趾板、面板、分缝和止水、大坝抗震措施设计等。可为类似高地震裂度区狭窄河谷上的面板坝设计、施工提供参考借鉴。

Houziyan CFRD characterized as significant height, narrow river valley and high seismic intensity, is the second-highest dam of CFRDs built and being built in the world, so difficulties exist in its engineering design. Through a lot of tests and considering the features of the Houziyan dam, we have adopted several innovative methods for dam deformation control, founda-tion treatment, water-sealing and anti-seepage structure, anti-seismic design, which has adopted the hydraulic structure de-sign concepts of 300m-high level dam. The design solutions are presented in detail including dam layout, dam partition and de-sign of filling materials, foundation treatment, toe slab, face slab, joint design and water-sealing, anti-seismic measures.