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Study of fish-passing facility on the weirs on Bečva river
Chovancová, Kateřina ; Veselý, David (referee) ; Milerski, Rudolf (advisor)
This master's thesis consists of three main parts. The first section describes some types of fish crossings and basic information of their design. There is also marginally described program HEC-RAS. The second part is about the Zuberská weir and Osek stage. I review here fish ladders according to the original drawings in the HEC-RAS and suggest possible options to address these passable fish crossings for the fish crew. The last section is devoted to Mikulenkov weir where the fish crossing has been completely removed. Here I propose a new fish ramp according to modern knowledge and applicable standards. I also review the proposed fish ramp in the HEC-RAS program in order to verify the hydraulic characteristics.
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Sediment deposition in reservoir of Nové Heřminovy dam
Kammermayer, Jan ; Šedivý, Jiří (referee) ; Zachoval, Zbyněk (advisor)
The thesis deals with silting of water reservoir Nové Heřminovy. There's describe design of artificial traffic and evaluate its effectiveness. To determine the flow of sediment into the reservoir with use a partially calibrated one-dimensional numerical model of sediment transport with deformation of bed is made in software HEC-RAS. Silting reservoirs is assessment with two methods, the results are compared and describes their limitations. Reservoirs silting evaluates through volume changes in reservoir storage in time.
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Proposal of the water divider on the river Romže
Blaha, Josef ; Zedníček, Jiří (referee) ; Uhmannová, Hana (advisor)
The diploma thesis deals with the design of the water divider near Prostějov on the Romže River. Divider flows will be transferred into the Hloučela River. Within the thesis, hydraulic calculations of the side spillway were solved according to Bürgel, Pavlosky, Engels, Musterle, Kunštátský, Hager and energy solution methods in the Microsoft Excel spreadsheet and by using the HEC-RAS program as well. The calculations were compared to each other. Geometry of the relief water divider on the Romže River and the related buildings was designed based on the performed calculations. The required function of the relief object is guaranteed by manipulation of designed sluice gate. The study includes the text part with the calculations and the drawing part documenting the implementation of the designed measures.
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River regulation and flood protection
Pechová, Kamila ; Petrula, Lubomír (referee) ; Duchan, David (advisor)
This bachelor thesis is focused on a proposal for adjustment of a flow with a consideration of an anti-flood protection and a revitalization the Svitava river in Bílovice nad Svitavou. Based on a course of the height of the water level discovered from a computational model from the HEC-RAS program is designed an anti-flood protection of the flow and this way the spilling of the river from an intravilan is prevented.
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Project of revitalization part of Kninicky brook
Vyplel, Adam ; Svoboda, Ondřej (referee) ; Šlezingr, Miloslav (advisor)
The diploma thesis is focused on the proposal of systematic revitalization of the selected section of the Knínický brook in the cadastral area of Veverské Knínice. It is a straight, very deep channel due to technical adjustments in the past. The HEC-RAS program verifies the capacity of the channel for the Q100 flow. In this way, it was found that the channel has very high capacity so a new route with Q1 flow capacity was designed. Due to the height conditions, the design also included three boulder chutes. Subsequently, the vegetation accompaniment and bank stands were suitably supplemented.
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Design of weir reconstruction in Oslavany
Němcová, Denisa ; Smelík, Lukáš (referee) ; Uhmannová, Hana (advisor)
This diploma thesis deals with a design of the reconstruction of a smixed weir on the Oslava river in Oslavany town. The introduction describes the site of interest and the the occurrence of ice events. There are several types of fish ladders described theoretically. Further on in the thesis there is desribed the state of the objects on the flow and the state of the river basin in the area of interest of Oslava river. Next part of the thesis deals with the design of a movable baying structure (a hollow flap) and fish ladder type bypass channel. An impact assessment of the current and newly proposed weir on flow in the HEC-RAS program was carried out. The project also includes the basin adjustment in overweir and an evaluation of the stability of the newly designed construction.
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Assessment of the Options of Increased the Flood Protection
Adam, Karel ; Golík,, Pavel (referee) ; Uhmannová, Hana (advisor)
The work deals with the assessment of the stream Chribska Kamenice current state in the village Vsemily urban area. The aim of the project is the assessment of capacity and the current state of the stream-bed. Based on an assessment measure there has been designed the improvement suggestion of the current state and flood protection increasing in close neighbourhood.
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Assessment of the water flow in the Odra river basin
Mláděnka, Jakub ; Vysloužilová, Lucie (referee) ; Uhmannová, Hana (advisor)
The aim of the bachelor thesis is to describe and evaluate in detail the current state of the Luha river and the objects connected with it, in the interest section – river kilometer 0.000-2.853 in the cadastral area of the Jeseník nad Odrou. Part of the work is to assess the capacity of the river flow in the locality and to propose ideological measures that would increase it to the design value of the 20-year flow. The calculation of the flow rate is performed by using the 1D mathematical model HEC-RAS for selected N-year flows. On the basis of the results of the flow rate, the assessment of the capacity of the channel and the objects in the solved section, two variants of continuous river basin adjustment are proposed to improve the current state of the channel and to increase the flood protection of the neighboring area.
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Revitalization of the selected section of the watercourse
Šmídová, Hana ; Ošlejšková, Kateřina (referee) ; Šlezingr, Miloslav (advisor)
This study solves revitalizing proposal of selected section of river Kuřimka in km 0,212 to 0,312 in the cadastral Kníničky. Work is focused on assessing the current state, capacity assessment and subsequent design of revitalization using extension space for sedimentation. Calculations of flow capacity were performed using HEC-RAS 5.0.0. The assessment was made based on my own errand, remeasurement and photographic documentation. The work also includes a proposal of riparian vegetation and drawings.
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Design of methodology for determining roughness coefficient of open channels
Smelík, Lukáš ; Havlík,, Aleš (referee) ; Šoltész,, Andrej (referee) ; Uhmannová, Hana (advisor)
Determination of immeasurable parameter, the Manning’s roughness coefficient, is a complex problem of open channel hydraulics for more than 200 years. Now it doesn’t exists a method for determining an exact value of 1D roughness coefficient for computation water levels in watercourses. Doctoral thesis is focused for comparing different approaches to determine a roughness coefficient, especially for empirical equations. It were sought empirical equations, which are suitable for wide spectrum of water stages, types of bed material, channel shapes and channel dimensions. Selected equations were sorted on the base of two methods by the best values of medians and standard deviations of measured and computed values of roughness coefficients. Furthermore, it were compared qualities of roughness coefficient determination by tables, by photographic catalogs, CES software and by Cowan’s method, which has been extended and recalibrated. The computed values of roughness coefficients by those four methods were compared with values from own measurements in 27 locations in watercourses near of Brno and Frýdek-Místek. Also it were compared the grain size curves determined by sieving, by Wolman’s method and by Subjective estimation. Doctoral thesis is marginally focused for beginning of sediment movement, roughness coefficient of bedforms (dunes), grass and trees.
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