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通过对鲁布革心墙堆石坝运行期竖直变形观测资料的分析，建立大坝观测变形量与环境量之间的数学模型，分离出坝体变形的蠕变分量。对邓肯－张Ｅ－Ｂ模型中的参数ｋ，ｋ_ｂ，ｎ，ｍ，Ｒ_ｆ，■_０进行不同的组合，运用有限单元法将沉降计算值与实测值（扣除蠕变分量后）拟合，从而反演出坝料在不同时期的参数，认识到坝体在长期运行中由于坝料变得不断密实而使其长期强度随时间增长的规律
Through the analysis of observation data of vertical deformation of the Ruibu core-wall rockfill dam during operation period, a mathematical model between the observed deformation of the dam and the environmental quantity is established, and the creep component of the deformation of the dam body is separated. Different combinations of the parameters k, k_b, n, m, R_f, ■ _0 in the Duncan-Chang E-B model are fitted and the calculated settlement values are fitted with the measured values (after deducting the creep components) Inversion of the dam material parameters in different periods, recognizing the dam in the long run as a result of the dam material has become increasingly dense and its long-term intensity with the law of growth