Numerical investigation into the stability of earth dam slopes considering the effects of cavities

Al-ateya, H and Ahangar Asr, A ORCID: https://orcid.org/0000-0002-8210-7519 2019, 'Numerical investigation into the stability of earth dam slopes considering the effects of cavities' , Engineering Computations .

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Abstract

This research is an attempt to estimate the influence of the presence of cavities on the stability of slopes in earth dams under rapid drawdown conditions. The aim of the investigation is to study the influence of different factors, such as the diameter and location of cavities. A series of finite element simulations was conducted using PLAXIS 2D to develop models and analyse slope stability in earth dams while considering the effect of cavities in the subsoil. The combined effects of cavities and the strength parameters of slopes on the stability were also investigated and parametrically analysed. The results indicated that presence of cavities and an increase in the diameter of cavities decreased the stability of the upstream face dramatically for all examined locations in a horizontal direction; however, this effect was less on the downstream side. The results also showed that variations in the location of cavities in the horizontal direction have a greater effect on the stability compared to the vertical direction. The results revealed that increasing shear strength parameters of embankment do not reduce the influence of cavities on stability when those cavities are in critical locations.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title: Engineering Computations
Publisher: Emerald
ISSN: 0264-4401
Related URLs:
Depositing User: Dr Alireza Ahangar Asr
Date Deposited: 13 Nov 2019 08:37
Last Modified: 03 Feb 2020 15:45
URI: http://usir.salford.ac.uk/id/eprint/53018

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