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Numerical modeling of The Deformation of Rockfill Dams (Case Study: Masjed-soleyman Dam)
, M.Sc. Thesis Sharif University of Technology ; Pak, Ali (Supervisor)
Abstract
Rockfill dams are a kind of gravity dams that a major part of the dam’s body is made of rock particles. The specific feature of these dams is the high settlement of rockfill layers so, numerical simulation of the behavior of these dams for predicting their settlement is of prime importance. However, the normal procedure of numerical modeling and the analysis of stresses and deformations using common engineering softwares usually does not work because the behavior of rockfills is not well understood. Evaluating the mechanical behavior of rockfill layers is not usually possible in the laboratory because of the large dimensions of these particles which are sometimes larger than one meter....
Collapse settlement of a clay core rockfill dam during the first impoundment
, Article 10th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2005, Rome, 30 August 2005 through 2 September 2005 ; 2005 ; 1905088000 (ISBN); 9781905088003 (ISBN) ; Heidari, T ; Azami, A. R ; Sharif University of Technology
2005
Abstract
In this paper the effects of the first reservoir filling on rockfill dams were studied numerically. To simulate the problem a simplified coupled formulation based on Biot's theory associated with unsaturated soils was presented. The finite element method was applied to the governing equations for the spatial discretization, followed by a generalized Newmark scheme used for the time domain discretization. The three effects of reservoir filling, collapse settlement produced by wetting the rockfill, water load on the dam body and buoyancy in the upstream shell were introduced. The nature of collapse settlement and how to numerically capture that by using the proper constitutive model is...