Performance of the complex spillway structure after gate replacement - physical modelling

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00349171" target="_blank" >RIV/68407700:21110/19:00349171 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1201/9780429319778-23" target="_blank" >https://doi.org/10.1201/9780429319778-23</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1201/9780429319778-23" target="_blank" >10.1201/9780429319778-23</a>

Result language
angličtina
Original language name
Performance of the complex spillway structure after gate replacement - physical modelling
Original language description
The recently applied stricter demands on the safety of dams as well as on their operation resulted in the design of adjustments, enhancements and reconstructions of many spillways on large dams in the Czech Republic. The physical and/or numerical modelling of the suggested designs are usually applied due to the complex hydraulic conditions either on the spillway structure itself or in the reservoir area. The paper presents the results of the physical and numerical modelling of the spillway structure of the Nechranice Dam. The original structure consisted of three sections of spillway gated by drum gates. As the original structure did not meet the requirements during both normal and flood operation, replacement of both outer drum gates by the flap gates was proposed. The change in the gate type also caused major changes in the concrete spillway structure. Due to the presence of the perforated vertical wall breakwater in the reservoir, modelling was necessary to quantify, in the form of capacity curves, the performance of the spillway in different operation schemes. The paper also presents commented comparison of the results obtained in the laboratory and from numerical modelling.
Czech name
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Czech description
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Project
<a href="/en/project/VG20102014056" target="_blank" >VG20102014056: Reliability Improvement of Control Structures Installed on Hydraulic Structures for Sustaining Crisis Situation Caused by Natural Disasters and Accidental Operation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sustainable and Safe Dams Around the World / Un monde de barrages durables et sécuritaires: Proceedings of the ICOLD 2019 Symposium, (ICOLD 2019), June 9-14, 2019, Ottawa, Canada / Publications du symposium CIGB 2019, juin 9-14, 2019, Ottawa, Canada
ISBN
978-0-429-31977-8
ISSN
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e-ISSN
2575-9167
Number of pages
8
Pages from-to
257-264
Publisher name
CRC Press/Balkema
Place of publication
Leiden
Event location
Ottawa
Event date
Jun 12, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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