Discussion on the Safety Factors of Slopes Recommended for Small Dams
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU123787" target="_blank" >RIV/00216305:26110/17:PU123787 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.11118/actaun201765020569" target="_blank" >https://doi.org/10.11118/actaun201765020569</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.11118/actaun201765020569" target="_blank" >10.11118/actaun201765020569</a>
Alternative languages
Result language
angličtina
Original language name
Discussion on the Safety Factors of Slopes Recommended for Small Dams
Original language description
The design and assessment of the slope stability of small embankment dams is usually not carried out using slope stability calculations but rather by the comparison of proposed or existing dam slopes with those recommended by technical standards or guidelines. Practical experience shows that in many cases the slopes of small dams are steeper than those recommended. However, most of such steeper slopes at existing dams do not exhibit any visible signs of instability, defects or sliding. For the dam owner and also for dam stability engineers, the safety of the slope, expressed e.g. via a factor of safety, is crucial. The aim of this study is to evaluate the safety margin provided by recommended slopes. The factor of safety was evaluated for several dam shape and layout variants via the shear strength reduction method using PLAXIS software. The study covers various dam geometries, dam core and shoulder positions and parameter values of utilised soils. Three load cases were considered: one with a steady state seepage condition and two with different reservoir water level drawdown velocities – standard and critical. As numerous older small dams lack a drainage system, variants with and without a toe drain were assessed. Calculated factors of safety were compared with required values specified by national standards and guidelines.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/TA04020670" target="_blank" >TA04020670: The utilization of probabilistic methods for safety survailance of dams with respect to its safety during global climate change.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
ISSN
1211-8516
e-ISSN
2464-8310
Volume of the periodical
Volume 65
Issue of the periodical within the volume
2/2017
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
8
Pages from-to
569-576
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85018454854