Mojca Šraj (Author), Anja Vihar (Author), Mitja Brilly (Author)

Abstract

V prispevku je predstavljena metodologija koincidenčne verjetnostne analize visokovodnih valov. S pomočjo programa HEC-SSP je izračunan primer koincidenčne verjetnostne analize visokovodnih valov na sotočju Soče in Vipave, pri čemer smo izračunali verjetnostno porazdelitev gladine Vipave v Sovodnjah na osnovi merjenih pretokov Vipave v Mirnu ter izračunanih pretokov Soče na sotočju z Vipavo. Za pridobitev odzivnih krivulj gladine Vipave v Sovodnjah smo izvedli simulacije s pomočjo enodimenzionalnega hidravličnega modela HEC-RAS. Na gladino Vipave na odseku od sotočja do naselja Miren ob visokih vodah močno vpliva povečan pretok Soče na sotočju, ki povzroča zajezitev Vipave in s tem njeno poplavljanje. Za zmanjšanje verjetnosti poplavljanja Vipave na tem odseku bi bilo zato najprej potrebno urediti strugo Soče, da ne bi povzročala zajezitve Vipave v tolikšnem obsegu.

Keywords

koincidenčna verjetnostna analiza;HEC-SSP;sotočje;visokovodni val;Vipava;Soča;

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo
UDC: 519.2:556.531(282)(497.4)
COBISS: 7409249 Link will open in a new window
ISSN: 0352-3551
Views: 1330
Downloads: 474
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Other data

Secondary language: English
Secondary title: Coincident frequency analysis of flood waves at the confluence of the Soča and the Vipava rivers
Secondary abstract: In this paper the methodology of the coincident frequency analysis is presented. Using the HEC-SSP program the coincident frequency analysis of flood waves at the confluence of the Soča and Vipava rivers was performed. The probability distribution of water level of the Vipava River in Sovodnje was assessed on the basis of measured discharge data of the Vipava River in Miren and calculated discharge data of the Soča River at the confluence with the Vipava River. In order to obtain the response curves of the water level of the Vipava River at Sovodnje, simulations using a one-dimensional hydraulic model HEC-RAS were performed. The water level of the Vipava River in its lower reach near the confluence is highly influenced by increased discharge of the Soča River at the confluence with the Vipava River, which causes backwater of the Vipava River. In order to reduce the probability of flooding of the Vipava River at its lower reach near the confluence, the backwater effect should be reduced first.
Secondary keywords: coincident frequency analysis;HEC-SSP;confluence;flood wave;Vipava River;Soča River;
URN: URN:NBN:SI
File type: application/pdf
Type (COBISS): Not categorized
Pages: str. 119-137
Volume: 27
Issue: ǂ[št.] ǂ47
Chronology: 2014
ID: 9150291