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Načrtovanje ukrepov za zagotovitev prehodnosti za vodne organizme na Savi Bohinjki pri jezu HE Soteska : magistrsko delo
Koranter, Tilen (Author), Kryžanowski, Andrej (Mentor) More about this mentor... This link opens in a new window, Stojič, Zoran (Co-mentor), Sodnik, Jošt (Co-mentor)

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Abstract
V magistrskem delu obravnavamo načrtovanje ukrepov za izboljšanje prehodnosti prečnih vodnogospodarskih objektov, s katerimi vplivamo tudi na izboljšanje vzdolžne povezanosti vodotokov za vodne organizme. Magistrsko delo je strukturirano tako, da so v prvem delu obravnavana teoretična izhodišča, ki jih moramo upoštevati pri načrtovanju ukrepov za zagotavljanje prehodnosti na novih in obstoječih vodnogospodarskih objektih. Med njimi je izgradnja ribjega prehoda eden izmed najučinkovitejših ukrepov. V drugem delu smo na podlagi opisanih teoretičnih izhodišč izdelali idejno zasnovo ureditve prehodnosti za vodne organizme na Savi Bohinjki pri jezu HE Soteska, ki bi imela tudi velik pozitiven vpliv na vzdolžno povezanost celotnega vodotoka. Izdelali smo načrt ureditve odseka glavne struge in idejno zasnovo ribjega prehoda, ki ga sestavljata tehnični bazenski tip z vertikalnimi režami in sonaravno-tehnični bazenski tip. Delovanje ribjega prehoda je mogoče z izrabo dela ekološko sprejemljivega pretoka. Pri načrtovanju ureditve prehodnosti smo upoštevali ihtiološke dejavnike, ki jih določajo ribje vrste Save Bohinjke. Za zagotavljanje dodatne atrakcije na vhodu v ribji prehod in za izrabo preostalega dela ekološko sprejemljivega pretoka, ki se ne porabi za delovanje ribjega prehoda, smo ob izgradnji ribjega prehoda predvideli tudi izgradnjo male hidroelektrarne. Na koncu smo z analizo investicijskih stroškov celotne ureditve pokazali, da bi se celotni investicijski strošek zasnovane ureditve prehodnosti na odseku ob delovanju mHE povrnil v približno 16 letih. Izvedba načrtovane ureditve bi na obravnavanem odseku omogočila izboljšanje vzdolžne povezanosti vodotoka za vse vodne organizme, hkrati pa je z možnostjo proizvodnje električne energije v mHE investicija približana potencialnemu investitorju.

Language:Slovenian
Keywords:ribji prehod, prehodnost, vzdolžna povezanost, ribe, vodni organizmi, mala hidroelektrarna, HE Soteska, Sava Bohinjka, ekološko sprejemljivi pretok
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2017
Publisher:[T. Koranter]
UDC:626.882:627.8.01(497.4)(043.3)
COBISS.SI-ID:8140385 Link is opened in a new window
Views:934
Downloads:699
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Secondary language

Language:English
Title:Design of measures for ensuring passability for aquatic organisms on Sava Bohinjka River at Soteska HPP Dam : Master thesis
Abstract:
The master’s thesis deals with the design of measures for improving passability at transverse river structures, which can also influence on the improvement of longitudinal connectivity of the river. The master’s thesis is structured in such a way, that the first part deals with theoretical background, which must be taken into account at designing measures for ensuring migration at newly and at existing transverse river structures. Construction of the fish pass is one of the most effective measures. Based on the considered theoretical background, the conceptual design of the restoration of the passability on Sava Bohinjka River at Soteska HPP Dam was made in the second part of the thesis. Insured passability would have a great positive influence on the longitudinal connectivity of the entire river. In order to ensure passability at the dam, we designed a plan, which takes into account, first the restoration of passability of the main river section and second the conceptual design of the fish pass, consisting of a technical pool type with vertical slots and natural-technical pool type. The operation of fish pass is enabled by exploiting part of the ecologically acceptable flow. In designing the restoration of passability, the ichthyologic factors, determined by the fish species of Sava Bohinjka River, were taken into account. In order to provide additional attraction flow at the fish pass entrance and to use part of the ecologically acceptable flow, we planned the construction of small hydropower plant. Finally, by analysing the investment costs of the entire restoration of passability for aquatic organisms at the Soteska HPP Dam, we showed that the total investment cost of the design, which includes construction of small hydropower plant, would be refunded after approximately 16 years. The proposed design would have a positive influence on the improvement of the longitudinal connectivity of the river, and at the same time with the possibility of producing electricity in the small hydropower plant, the potential investor would more likely finance the investment.

Keywords:fish pass, migration, longitudinal connectivity, fish, aquatic organisms, small hydropower plant, Soteska HPP, Sava Bohinjka, ecologically acceptable flow

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