Experiences from the small historical dams failures during heavy floods

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00239624" target="_blank" >RIV/68407700:21110/15:00239624 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/1755-1315/26/1/012042/pdf" target="_blank" >http://iopscience.iop.org/article/10.1088/1755-1315/26/1/012042/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/26/1/012042" target="_blank" >10.1088/1755-1315/26/1/012042</a>

Result language

angličtina

Original language name

Experiences from the small historical dams failures during heavy floods

Original language description

Roughly between 400 and 600 years ago many small earth dams were constructed mainly in the south part of the Czech Republic. They were used for fish production and flood protection. To our days roughly one third survived, which means about 25 000 of them. During catastrophic floods in 2002 many of them had some problems but less than 0.3% failed. Experiences gained from the failure evaluation are presented. Firstly from the view of limit states of failures, when limit states of internal erosion and surface erosion played most important role and were the main reason of failures. Secondly, from the view of so called domino effect of failure, when the most important dam on the catchment basin failed and after that the other ones, situated below, had limited chance to survive. The failures are described for catchment basin of the small river Lomnice in south part of the Czech Republic close to the town Blatna. The experiences obtained there led to the evaluation of other catchment basins where domino effect of failure can play also very important role. For the evaluation of potential risk, the numerical modelling was used to study the flood wave propagation below the critical dam, especially at the moment when this wave is reaching the dam situated below the critical one. Finally, the recommendations are specified, not only for individual dams but also for catchment basin, where the risk of domino effect failure is very high.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Article name in the collection

International Symposium on Geohazards and Geomechanics

ISBN

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ISSN

1755-1315

e-ISSN

1755-1315

Number of pages

8

Pages from-to

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Publisher name

IOP Publishing

Place of publication

London

Event location

Coventry

Event date

Sep 10, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000361429800042