detention rockfill dams are an easy and common tool for flood control. due to their coarse pores, the flow in void spaces is turbulent and non-darcy. different relationships introduced by researchers are used to define the hydraulics of the flow within the rockfill materials. the present research is aimed at gaining a better understanding of the differ-ence among these relationships and the sou...

The creep parameters of rockfill materials obtained from engineering analogy method or indoor tests often cannot accurately reflect the long-term deformation high Concrete-Faced Rockfill Dams (CFRDs). This paper introduces an optimized inversion based on multi-population genetic algorithm-improved BP neural network and response surface (MPGA-BPNN RSM). used for are determined by parameter sensi...

With the increasing height of rockfill dams, detailed and effective numerical simulation for dam design construction has become increasingly important. This paper develops a finite element program impoundment process high large-scale earth dams studies influence accuracy on deformation crack analysis. By establishing subdivision mode conventional elements, mesh generation is realized. Using row...

The rockfill is modeled as nonlinear elastic material, whose stress-dependent tangent modulus is related to the confining pressure. The parameters of constitutive relationship of stress and strain are determined by tri-dimensional compression test in laboratory. The model applied in this study adopts the technique of element birth and death to simulate the sequential impoundment process of conc...

Computational modeling plays a significant role in the design of rockfill dams. Various constitutive soil parameters are used to such models, which often involve high uncertainties due complex structure dams comprising various zones different parameters. This study performs an uncertainty analysis and global sensitivity assess effect on behavior dam. A Finite Element code (Plaxis) is utilized f...