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Poplavna in erozijska ogroženost ob hudourniku Brut : diplomsko delo (univerzitetni študij - 1. stopnja)
Saražin, Jaša (Author), Steinman, Franci (Mentor) More about this mentor... This link opens in a new window

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Abstract
Na povodju hudournika Brut je bilo slutiti, kasneje so tudi domačini to potrdili, da so nekateri cevni prepusti poddimenzionirani. Zato je bila narejena temeljita analiza odtočnega režima ter analiza pretočnih zmožnosti posameznih objektov. Ugotovljeno je bilo, da so trije cevni prepusti premajhni ter da je vzdrževanje struge in objektov zelo slabo. Nato so bile izračunane zadovoljive dimenzije cevnih prepustov, ki lahko prevajajo vode, ki se pojavljajo s pogostostjo 50-ih let, kar je bilo tudi določeno za sprejemljivo stopnjo tveganja. Izkazalo se je, da je za poplavljanje dveh cevnih prepustov krivo predvsem odvodnjavanje z avtoceste, dokončane leta 2004. za naslednjo težavo se je izkazalo pomanjkanje vzdrževanja objektov. Zato na nekaterih objektih voda uhaja in erozijsko ter poplavno ogroža človekove objekte in dejavnosti dolvodno. Na drugem kraku hudournika pa je primer dobre prakse. Tam so ob izgradnji nove ceste za Osp, pred več kot 40-imi leti, zgradili sistem sedmih pregrad, ki lahko prevajajo 100-letne vode, večina celo 500-letne, ki še danes trdno stojijo in odlično opravljajo svojo nalogo podpiranja brežin in manjšajo moč hudourniški vodi. Zaključek ugotovljenega je pokazati, da je prava pot v preventivi (pravilno projektiranje in vzdrževanje), ne pa čakanje na kurativo (sanacije po poplavnih dogodkih).

Language:Slovenian
Keywords:hudournik, poplave, cevni prepusti, pregrade, vodozbirna območja, avtoceste
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2011
Publisher:[J. Saražin]
Number of pages:VII, 46 f.
UDC:630*38(043.2)=163.6
COBISS.SI-ID:3236518 This link opens in a new window
Views:290
Downloads:105
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Secondary language

Language:English
Title:Flood and erosion risk by the stream Brut
Abstract:
On drainage basin of the stream Brut it was assummed and later even locals confirmed that some of culvert pipes are under measured. Because of this, it was made detailed analysis of runoff regime and throughput capacities for each stream object. It was summed up that three culvert pipes have to small capacities and that maintenance of the stream is really bad. Than it was calculated what would be satisfactory dimensions for pipes with risk factor lower than 50-years waters, which is in the same time even acceptable risk rate in this Thesis. It showed out that two culvert pipes are flooding becauseor runoff from new highway. Next problem is maintenance of stream and supporting objects. Because of this, on some objects the water is escaping from stream and than makes flood and erosion risk for mans objects and activities downstream. However, on the other arm of the stream we have example of good practice. More than 40 years ago, while there were building a new road, they built even big system of seven water barriers. Most of those can withstand even 500-years waters and today they still perfectly do their job of consolidating slopes and lowering stream impact force. Essence found that is better prevent with right design and maintenance, than waiting on post-flood rehabilitation.


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