Soil moisture dynamics in levees during flood events - variably saturated approach.
| Autor: | Zumr, Jan, 1988- |
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| Další autoři: |
Císlerová, Milena, 1940-
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| Jazyk: | angličtina |
| Předmět: |
povodně
protipovodňová ochrana floods flood control články journal articles protipovodňová hráz sypaná zemní hráz nenasycená půda vadózní zóna modelování průsaku vodní režim půd Richardsova rovnice river embankment earth dam unsaturated soil vadose zone seepage modelling soil water dynamics Richards’ equation |
| Druh dokumentu: | Non-fiction |
| ISSN: | 0042-790X |
| Abstrakt: | Abstract: Growing occurrence of extreme floods in the Czech Republic has attracted attention to the security of protective earthfill embankments along the rivers. A suddenly increased amount of water on the waterside slope of the embankment may have destroying or even catastrophic consequences. Predictions of seepage patterns through the earth body are usually done considering the saturated flow beneath the free water level only, neglecting the saturated-unsaturated character of the soil water dynamics within earthfill dams. The importance of water dynamics within an earth dam is known and may be addressed using numerical simulation models. In this study the solution based on transient simulation of seepage through protection levee using saturated-unsaturated theory is presented. Simulations were carried out by a two-dimensional numerical model based on Richards’ equation for water flow in porous medium. It has been shown that proposed approach is, with certain limitations, suitable for large scale engineering applications. |
| Databáze: | Katalog Knihovny AV ČR |
| Externí odkaz: |
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