Evalution of dam safety using limit states

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU119163" target="_blank" >RIV/00216305:26110/16:PU119163 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Evalution of dam safety using limit states

Original language description

One of the key tasks in dam engineering is the assessment of dam safety. Traditionally, dam safety has been assessed via safety factors. In recent years a method utilizing limit states based on Eurocode standards (EN 1990), (EN 1991), (EN 1992) and (EN 1997) has been recommended for this purpose in the Czech Republic. However, the recommendations of technical standards are rather general and predominantly focus on the structures of buildings and concrete structures such as bridges and frames, etc. Most of the provisions of the aforementioned standards have to be adapted in order to apply them to hydraulic engineering, including dam safety assessment. The process of dam reliability evaluation via the limit state method comprises the identification of failure scenarios and the identification of relevant loads acting on the structure. The most difficult task is the determination of partial reliability factors expressing uncertainties in input variables (load, resistance, material properties, etc.). The problem lies in the specific character of hydraulic works (namely earthen structures), the lack of relevant data concerning them and the high degree of uncertainty arising from their nature (hydrological, geotechnical). The paper presents basic approaches and applications of the limit state method to dam safety assessment. Limit state conditions are formulated for the selected failure mechanisms. Partial reliability factor values are also discussed.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2016

Confidentiality

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

Article name in the collection

84 th ICOLD ANNUAL MEETING, International Symposium Proceedings of the International Symposium on "Appropriate technology to ensure proper Development, Operation and Maintenance of Dams in Developing Countries"

ISBN

978-0-620-71042-8

ISSN

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e-ISSN

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Number of pages

10

Pages from-to

2048-2057

Publisher name

South African National Commitee on Large Dams (SANCOLD)

Place of publication

Johannesburg, South Africa

Event location

Johannesburg

Event date

May 15, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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