摘要： 根据某面板堆石坝施工期、蓄水初期以及几年来的沉降观测资料，对坝体填筑材料计算参数进行反馈分析，得出了能够反映坝体实际变形的弹塑性应力变形计算参数，有利于今后建立大坝变形预报模型，更准确地把握大坝实时运行状态。

Abstract: Based on the observational settlement data of a CFRD from construction period, first filling and several years operation, the parameters of rockfills which is good at explaining deformation of dam can be calculated by feedback analysis. This will help develop prediction model.