糯扎渡水电站土料含水率调节方法研究及应用

Study and Application of Adjusting Methods for Moisture Content of Soils for Dam Embankment,Nuozhadu Hydropower Project

糯扎渡水电站工程是中国首次采用掺砾土料作为心墙防渗体填筑料的大型水电工程。文章从掺砾土料含水率对大坝填筑质量的影响出发,提出了掺砾土料补水的定量计算模型和补水工艺。结果表明,旱季掺砾土料含水率均满足设计要求。

Nuozhadu Hydropower Project is a large one whose cutoff wall is built by soils with gravel mixed as impervious embankment materials for the first time in China. Based on impacts on the dam embankment quality by the moisture content of soils with gravel mixed, calculation model for quantitative water compensation and water-compensating technology for water compensation of soils with gravel mixed are raised. It shows that the moisture content of soils with gravel mixed in dry season satisfies design requirement totally.