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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/VG20102014056" target="_blank" >VG20102014056: Zvýšení spolehlivosti manipulačních objektů na vodních dílech pro překonání krizových situací za živelných pohrom a provozních havárií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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

—

e-ISSN

2575-9167

Počet stran výsledku

8

Strana od-do

257-264

Název nakladatele

CRC Press/Balkema

Místo vydání

Leiden

Místo konání akce

Ottawa

Datum konání akce

12. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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