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3D Finite Element analysis of a RCC dam employing a concrete model with tension softening
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3D Finite Element analysis of a RCC dam employing a concrete model with tension softening
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3D Finite Element analysis of a RCC dam employing a concrete model with tension softening
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Conference Proceeding
3D Finite Element analysis of a RCC dam employing a concrete model with tension softening
2015
Overview
This paper summarizes results from three-dimensional finite element analyses to assess the performance of the deep foundation for a Roller Compacted Concrete (RCC) dam of a hydropower plant project. Due to the geometric layout 2D analyses are not possible and full 3D modelling is required. The behaviour of both the deep foundation elements and the RCC dam is modelled with a linear elastic - perfectly plastic model (Mohr-Coulomb model) and alternatively with a more advanced concrete model, taking account of strain hardening and tension softening. For the final deep foundation layout maximum settlements in the range of 25 to 30 mm can be expected. Finally, the influence of the more advanced concrete model on the settlement behaviour and the stress distribution within the roller compacted concrete dam is investigated.
