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Stochastic analysis of free surface flow through earth dams

Ahmed, Ashraf A.

AbstractThis research investigated the unconfined flow through dams. The hydraulic conductivity was modeled as spatially random field following lognormal distribution. Results showed that the seepage flow produced from the stochastic solution was smaller than its deterministic value. In addition, the free surface was observed to exit at a point lower than that obtained from the deterministic solution. When the hydraulic conductivity was strongly correlated in the horizontal direction than the vertical direction, the flow through the dam has markedly increased. It is suggested that it may not be necessary to construct a core in dams made from soils that exhibit high degree of variability.

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Stochastic analysis of free surface flow through earth dams

Ahmed, Ashraf A.

AbstractThis research investigated the unconfined flow through dams. The hydraulic conductivity was modeled as spatially random field following lognormal distribution. Results showed that the seepage flow produced from the stochastic solution was smaller than its deterministic value. In addition, the free surface was observed to exit at a point lower than that obtained from the deterministic solution. When the hydraulic conductivity was strongly correlated in the horizontal direction than the vertical direction, the flow through the dam has markedly increased. It is suggested that it may not be necessary to construct a core in dams made from soils that exhibit high degree of variability.

Stochastic analysis of free surface flow through earth dams

Ahmed, Ashraf A.

AbstractThis research investigated the unconfined flow through dams. The hydraulic conductivity was modeled as spatially random field following lognormal distribution. Results showed that the seepage flow produced from the stochastic solution was smaller than its deterministic value. In addition, the free surface was observed to exit at a point lower than that obtained from the deterministic solution. When the hydraulic conductivity was strongly correlated in the horizontal direction than the vertical direction, the flow through the dam has markedly increased. It is suggested that it may not be necessary to construct a core in dams made from soils that exhibit high degree of variability.

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Title:

Stochastic analysis of free surface flow through earth dams

Contributors:

Ahmed, Ashraf A. (author)

Published in:

Computers and Geotechnics ; 36 ; 1186-1190

Publication date:

2009-05-09

Size:

5 pages

ISSN:

DOI:

https://doi.org/10.1016/j.compgeo.2009.05.005

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Unconfined seepage , Random field theory , Probabilistic methods , Soil heterogeneity , Monte Carlo simulations

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