This paper highlights the differences, developments and up-to date principles for design, zoning and construction of concrete faced rockfill dams and concrete faced sand gravel fill dams. Design and fundamentals of five dams in operation is presented herein. Special emphasis is put on deformation behavior and analyses of concrete faced dams. Therefore, the stress strain behavior of rockfill is illustrated and compared to the stress strain behavior shown by the well known Mohr-Coulomb and the so called Hardening Soil model, an advanced Duncan-Chan model.
For a better understanding on the deformation behavior and analyses of the preliminary design of Sarigüzel dam, showing the differences of Mohr-Coulomb and Hardening Soil model. For the analyses the software package Plaxis 2D was applied. Furthermore, special features in numerical modeling the stress strain behavior of stiff rockfills in contrast to weak rockfills is highlighted.