摘要
锦屏一级水电站挡水坝为混凝土双曲拱坝,最大坝高305m,大坝混凝土骨料料源主要为变质砂岩和大理岩,砂岩为碱活性骨料,大理岩岩性均一性较差、强度偏低,为了提高工程的质量和安全度,大坝粗骨料采用岩石强度较高的砂岩料场。细骨料料源方案需结合生产性试验、混凝土性能试验研究成果,进行深入的方案研究、技术经济比较后最终确定。
Jinping grade I hydropower station retaining dam belongs to concrete double-arch darn. The maximum height is 305m. The dam aggregate sources are mainly metamorphic sandstone and marble, wherein the sandstone is alkali - reactive aggregate, and marble has poor lithology uniformity and low strength. The dam aggregate adopts sandstone aggregate field with higher rock strength in order to improve the project quality and safety. The fine aggregate source scheme should be combined with production test and concrete performance test research achievement for in-depth program research as well as technical and economic comparison, thereby making final decision.
出处
《中国水能及电气化》
2012年第11期48-54,共7页
China Water Power & Electrification
关键词
水电站
碱活性骨料
粗骨料
细骨料
hydropower station
alkaline reaction aggregate
coarse aggregate
fine aggregate
