小山水电站混凝土面板堆石坝施工  

Construction of the concrete race rockfill dam of Xiaoshan Hydropower Station

作　　者：赵永科 李辉 范忠军 张晓景 

机构地区：[1]中国水利水电第一工程局松江河电站施工局

出　　处：《水力发电》1996年第11期24-25,29,共3页Water Power

摘　　要：小山水电站混凝土面板堆石坝是我国寒冷地区已建同类坝型中的最高坝（坝高８５．３ｍ）。根据坝址地形、地质及气候条件，坝基和趾板开挖采用分层开挖和周边预裂方式；采石场采用深孔梯段微差挤压爆破技术；上坝施工道路分期、分层布置；采用较新鲜的安山岩级配料直接上坝，以减少冬季填筑坝体冻结深度；冰冻季节施工采用了不加水、薄层碾压技术。The concrete face rockfill dam of Xiaoshan Hydropower Station, with a height of 85.8m, is the highest dam in those dams with same dam type in the cold region in China. Based on the topographic, geologic and climate conditions in the dam site, the foundation and toe slab were excavated by layers and peripheral prespliting. The deep bench differential squeezing blasting was adopted in the quarry area. The access road to the dam was arranged by stages and layers. The graded material of fresh andesite rock was delivered directly to the dam in order to reduce the frost depth of rockfill dam in winter. During frost season. no watering and thin roller compaction layer technology were used in the construction.

关 键 词：水电站 混凝土 面板堆石坝 坝基开挖 填筑 

分 类 号：TV641.43[水利工程—水利水电工程]