高面板堆石坝变形性态分析与研究

Analysis and Research on Deformation State of High Concrete Face Rockfill Dam

结合梨园水电站面板堆石坝,根据大坝填筑到坝顶时不同变形监测方法所得的监测成果,对大坝进行三维有限元正反分析,深入评价高面板堆石坝施工质量及运行状况,并总结高面板堆石坝沉降范围,提出大坝堆石体平均压缩模量与沉降比(沉降量占坝高的百分比)的关系,据此评价梨园水电站面板堆石坝施工质量。

Combined with the concrete face rockfill dam （CFRD） of Liyuan Hydropower Station, the deformation data during dam filling period which obtained by different deformation monitoring methods are evaluated by inversion analysis, and then the dam is analyzed by three-dimension finite element. The evaluation results of deformation monitoring data are used to assess the construction quality and operation condition of high CFRD. The settlement range of high CFRDs is also summarized herein and then the relationship between the average compression modulus of rickfill body and the settlement ratio （the percentage of settlement with dam height） is proposed, which is taken as the basis to evaluate the construction quality of CFRD of Liyuan Hydropower Station.