碾压混凝土层面抗渗性能研究

Impermeability Study of RCC Layer Surface

研究在不同的层间间隔时间条件下 ,采用不同的胶凝材料用量 ,对碾压混凝土层面分别采取不处理 ,铺水泥粉煤灰浆 (简称水泥净浆 )、水泥砂浆等措施对碾压混凝土层面抗渗性能的影响。通过研究碾压混凝土层面抗渗性能及碾压混凝土本体抗渗性能 ,给出不同工况碾压混凝土层面相对渗透系数关系。研究工作针对龙滩高碾压混凝土重力坝设计的需要 ,其成果为即将开工的龙滩工程建设提供了重要的参考依据。

Under the condition of different intervals between the upper and down layers,and utilizing different floccutating materials consumption,this paper studies the effects of no treating,paving cement and pulveriled fuel ash paste,and paving cement mortar on layer surface to RCC layer impermeability.The relative percolation relations of RCC layer surface under different behaviours have been obtained by studing the impermeability of RCC layer surface and body.Aimed at the design demand of high RCC gravity dam for Longtan project that is about to start, the results of studies will provide the important reference basis.