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Strižne obremenitve poplavnih območij ob Selški Sori pri visokovodnih dogodkih : diplomska naloga
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Pivk, Agata
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),
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Steinman, Franc
(
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)
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,
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Rak, Gašper
(
Comentor
)
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Abstract
Intenziteta in pogostost visokovodnih dogodkov v Sloveniji v zadnjem času narašča, kar pomeni, da se pogosteje srečujemo tudi s posledicami poplav. Odnašanje materiala oz. erozija površja je le ena izmed njih, nastane pa kot posledica preseženih strižnih obremenitev vodnega toka. Poplavne površine imajo sicer določeno strižno odpornost, ki je določena glede na rabo tal oz. pokrovnost terena. Z modeliranjem poplavnega toka lahko določimo doseg visokih voda in preučimo njihov vpliv na površje. Glede na rezultate dvodimenzionalnega hidravličnega modela lahko določimo erozijsko ogrožena območja, z umeščanjem ekoremediacij pa je nevarnost odnašanja materiala mogoče omejiti. Za namen diplomske naloge je bila narejena analiza 100-letnega visokovodnega dogodka na Selški Sori pri naselju Praprotno. Poplavne razmere so bile modelirane v programu HEC-RAS, obdelava in prikaz rezultatov pa sta potekala s pomočjo GIS orodij. Obravnavana je bila ureditev za omejitev erozijske nevarnosti, in sicer z umestitvijo sonaravnih ukrepov v prostor.
Language:
Slovenian
Keywords:
Strižne obremenitve
,
strižna odpornost
,
erozijska nevarnost
,
HEC-RAS 2D
,
GIS
,
raba tal
,
ekoremediacije
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FGG - Faculty of Civil and Geodetic Engineering
Publisher:
A. Pivk]
Year:
2019
PID:
20.500.12556/RUL-110229
UDC:
502/504:711.168(497.4)(043.2)
COBISS.SI-ID:
8919905
Publication date in RUL:
13.09.2019
Views:
1758
Downloads:
598
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Secondary language
Language:
English
Title:
Shear Stress on Flood Areas by Selška Sora during High Water Events : graduation thesis
Abstract:
Slovenia has been experiencing greater flood intensity and frequency in the last couple of years. Therefore, the country has also been dealing with flood consequences more regularly. One of the flood effects is also soil erosion, which arises due to surpass of shear stress of the water flow. Each floodplain area has a particular shear resistance, which is defined also through the land use, respectively land cover. Information of the high-water’s reach is gained through the flood event modelling, which enables the examination of its impact on the land. The two-dimensional hydraulic model specifies the erosion-exposed areas, while the ecoremediation measures helps restricting the erosion’s negative impact. This thesis focuses on the analysis of a 100-year high-water event on the river Selška Sora by the village of Praprotno. The flood conditions were modelled in HEC-RAS 2D software, while the processing and graphical demonstration of the results were performed using GIS tools. A regulation with hedges to restrict erosion hazard was analysed.
Keywords:
Shear stress
,
shear resistance
,
erosion risk
,
HEC-RAS 2D
,
GIS
,
land use
,
ecoremediation
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