面板堆石坝参数反分析及变形规律探讨

根据西北口砼面板堆石坝在施工期和运行期的变形观测资料，应用水工、岩土力学、数理统计、优化等理论建立了不同时期大坝观测效应量和一朝一之间的数学模型。通过优选。填筑一用Ｈ的一交方至四次方表示，蠕变分量四元件模型模拟，从而例题地分解了坝体在不同时期的填筑分量、水压分量和为分量，通过大量的有限元计算，找出了邓肯一级Ｅ－Ｂ模型中Ｋ，Ｋｂ，ｎ，ｍ，Ｒｆ等参数与沉陷变形的关系，提出了扣除蠕变影响后反映堆石坝非线

Inverse Analysis and Deformation Law of Concrete Face Rockfill Dams

On the basis of observed protype data of deformation of concrete face rockfill dam of Xibeikou during construction and operation, the theories of hydraulic structure, rock soil mechanics, mathematical statistics and optimization are used to establish deformation mathematical model between effects and environmental factors. The deformation of the dam in different periods in reasonably decomposed into three parts: deformation component due to filling, deformation component due to water pressure, and deformation component due to creep. The relation among parameters K, K b, n,m, R f , in Duncan Chang model and subsidence deformation is calculated by the finite element method. A new optimization method of intersection sets domain is put forward and it is applied to the inverse analysis of nonlinear material parameter in the rockfill dam.