寒冷地区筑坝创新技术应用研究

寒冷地区RCC筑坝创新技术紧密结合桃林口水利枢纽工程建设实际，对RCC筑坝技术进行了系统试验研究，先后完成了碾压混凝土力学试验、现场碾压试验、坝基混凝土物理力学性质试验、野外大型抗剪断试验、混凝土碱骨料反应试验、溢流坝消能型式试验、底孔消能防冲试验、底孔减压模型试验等试验研究。采用了70余项新技术、新工艺、新材料、新设备，解决了20余项重大技术问题，使设计方案进一步优化，达到了节约投资，缩短工期，方便施工的目的。

Application Study of Damming Innovation Technology in Cold Areas

With the innovation technology of damming in cold areas,systemic experiment research is conducted on the basis of Taolinkou key project. RCC mechanics experiment, site compaction experiment, physical mechanics experiment of dam base concrete, large-scale shear strength experiment in the field, concrete alkali-aggregate reaction, energy dissipation experiment of overflow dam, energy dissipation erosion control experiment of bottom and decompression mold experiment of bottom have been completed successively. In the project seventy items of new technology, new materials and new equipment are introduced and over twenty important technology problems are solved to economize investment, shorten time limit and be convenient for construction.