Engineering Mechanics

Proceedings Vol. 21 (2015)

ENGINEERING MECHANICS 2015

Copyright © 2015 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

J. Havelka, J. Sýkora, A. Kučerová
pages 84 - 85, full text

In this contribution we focus on the practical application of the uncertainty propagation in groundwater flow environment [1] using stochastic finite element method [2,3,4], where the uncertain part is taking place in the spatial distribution of the transport properties. From the engineering point of view, it is crucial to choose an optimum between the safety and costs. These criteria are affected by the combination of technology, knowledge and experience of engineers. The essential parts in the prediction of system behavior is the structure geometry and soil properties, represented here by the earth dam with its subsoil and diffusion coefficient, respectively. Such coefficient is usually determined either by the expert guess or very few test drills, whereas the majority of the subsoil properties remains uncertain. The aim of this contribution is to obtain more information and reduce the risks in the system by introducing a stochastic expansion of the underlying deterministic problem.

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