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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Možnosti revitalizačních opatření na Odlehčovacím rameni Dyje

Bábíčková, Michaela January 2015 (has links)
The final Thesis called The possibilities of the revitalization in the floodway of the river Dyje is divided into 2 main parts. In the first one is evaluated actually situation in the floodway Dyje in Poštorná in kilometres 2,978 -- 0,655 and than evaluate discharge conditions. The important information was gain from Povodí Morava and then was used for making geometry model in HECRAS with water level. After making of this geometry situation was found out water level and threat of three bridges lying on the floodway. In the second part I choose part of river which would by suitable for revitalization and I have proposed a new way with meandres based on basic functions of the relief channel and to avoid disruption of existing dam. New water channel is going to be supplemented by meandres, wetlands and vegetation.
2

Návrh úprav v nivě toku Šporka v k.ú. Česká Lípa

Pytloun, Miroslav January 2008 (has links)
No description available.
3

Dynamika revitalizovaného koryta Sviňovického potoka / Channel dynamics of the restored Sviňovický Brook

Hujslová, Jana January 2010 (has links)
The aim of this thesis was to monitor and to evaluate development and morphological dynamics of the Sviňovický Brook channel after the restoration in 2005. Field surveying and aerial images by low-flying model planes were used to detect recent channel dynamics after the restoration in 2005. Channel changes were compared to water level measurements. The additional method was grain size analysis of bed sediments. Orthoimage and cadastral maps were utilized to document changes in channel position over the past 160 years. Field surveying detected intensive bed and bank erosion in restored channel caused by high stream velocity from the fortified upper flow. The restored channel has markedly widened and deepened. The largest changes occurred during floods in July 2006. The intensive eroding- depositing processes remodeled the channel. The changes in channel bed level were up 30 cm and bank erosion locally exceeded 1 meter. The longitudinal profile of the channel was leveled. The road bridge began to be obstacle to the longitudinal profile development. It causes deposition upstream and erosion downstream. The largest bank disruptions in the sector up the road bridge were fortified by quarried stones at the end of 2007. The channel has not shown any significant changes since 2007. With the growing density...
4

Návrh rekonstrukce poškozeného koryta toku Rusavy v obci Rusava / Design of reconstruction the damaged streambed Rusava in the village Rusava

Zelíková, Gabriela January 2014 (has links)
Design of reconstruction the damaged streambed Rusava in the village Rusava The task of this thesis is to evaluate the existing capacity of the streambed and design the reconstruction of Rusava river km 26,000 to 28,230. Rusava watercourse takes place in urban area of village Rusava in Zlín region. Channel revetment was badly damaged by floods in July 2011. The assessment of the current state of the watercourse was based on personal visit of the place and taken photos. Current state was modeled in HEC – RAS 3.1.3 software. The reconstruction is designed according to the assessment of the current river channel condition and also contains proposals for new buildings on the river.
5

Revitalizace krajiny v lokalitě Háje v k.ú. Zubří u Nového Města na Moravě

Dvořáková, Aneta January 2017 (has links)
The thesis deals with revitalization of the Olešná river headwater area at the level of planning permit documentation. The aim of the measures is to provide conditions for natural channel formation. Design includes objects for conversion of the watercourse from current regulated canal into the thalweg, where new riverbed will be created spontaneously. There is included an adjustment to provide present drainage functioning and safe diversion of the water back to the canal at the end of the revitalised section, as well. The thesis also includes literary research focused on the issue of spatial planning and relevant legislation related to landscape engineering projects.
6

Posouzení odtokových poměrů na toku ve správě Povodí Moravy, s.p. / Assessment of runoff conditions on the river in the Morava River Basin

Serafin, Petr Unknown Date (has links)
The aim of the diploma thesis was to assess the curent state of the Svratka river and propose appropriate measures in accordance with the plans of Povodí Moravy, s.p. Locality of interest is located in the built-up area and non-urban area part of Herálec at river kilometer 163,9809-164,5189 and extends over the cadastral areas of Český Herálec, Herálec na Moravě and Svratka. The assessment of the river was performed on the flow series using the 1D mathematical model HEC – RAS version 5.0.6. On the basis of the results of the flow rate, was the locality od interest divided into four parts. For parts which are located in the urban, was designed a flood protection against of the 20 – year flow. For parts which are located in the non-urban area, was designed revitalization with the possibility of water retention in the landscape. The final design was verified by calculation in the same program HEC – RAS. The diploma thesis contains text part, calculation part and drawing part documenting the proposed measures.
7

Posouzení odtokových poměrů na vodním toku Luha / Assessment of runoff conditions on the water flow Luha

Urbánková, Olga January 2017 (has links)
Diploma thesis deals with the assessment of runoff conditions on the water flow Luha in the river kilometer 8,120 – 13,900. The river flows in the urban area of Polom and undeveloped area of Polom and Heřmanice. The thesis is focused on an assessment of the condition of the riverbed, capacity of the river and on design of a flood protection. The thesis includes an assessment of the condition of fishponds. The assessment is based on personal visit and photos taken as record. Program HEC-RAS was used to calculate the water levels. The outcome is an evaluation of the river condition according to a method HEM and design of the flood protection.
8

Regionální morfologické rozdíly údolní sítě Jizerských hor / Differences in morphology of the valleys in the Jizerské hory Mts.

Hložek, Martin January 2012 (has links)
This Master thesis focuses on a river network characteristics in the Jizerské hory Mts., northern Bohemia. This part of the Czech Republic represents an area, which was during Tertiary and Pleistocene affected by neotectonic movements. Therefore, 30 longitudinal profiles of selected rivers were constructed to determine areas influenced by tectonics most intensively. These profiles were classified into four categories according to shape of profile curve. Also valley cross sections were made on five selected rivers. Additionally, the Jizera and Jizerka rivers were studied to assess changes of their streams in the period of 19382012. On the north-western (the Jeřice river catchment) and northern (the Smědá river catchment) slopes of the Jizerské hory Mts., areas most affected by neotectonic movements were detected. Tectonically controlled valley cross sections are distinctive on the Smědá, Jizera and Kwisa rivers. On the Jizerka and Jizera rivers, lateral erosion rate ranges up to 0,5 m/year.
9

České Budějovice- město a voda / České Budějovice- town and water

NOVÁKOVÁ, Barbora January 2012 (has links)
The thesis deals with the characteristics of the town of České Budějovice focused on the hydrological situation, the coexistence of the town with water and the use of water surface areas. The thesis is divided into two main parts. The theoretical part summarises firstly, the information dealing with geographical physics secondly, socioeconomic information. It is followed by a detailed analysis of the main rivers, the Vltava and the Malše, which flow through the monitored territory. There is also a chapter aimed at the system of ponds in the defined location. From a historical point of view there are mentioned mainly interventions of nature itself in the life of the town in the chapter dealing with floods. The second application part includes the historical analysis of the evolution of the river bed and the water surface areas in the territory of České Budějovice, which was made up on the basis of comparing maps and information from the beginning of the 18th century up to the present. The anthropogenic activity and its influence on the town of České Budějovice itself is presented in the section solving the endangered water surface areas. This part also contains a case study dealing with the possibility of solving these hazards and risks in the countryside. The output of the thesis also includes the creation of promotional materials, which could be used as teaching supplementary materials at primary schools.
10

Sledování a zaměření případných změn říčního koryta vodního toku Ostřice. / Tracing and surveying of accidental changes of the river bed of Ostřice.

KUBÁT, Michal January 2009 (has links)
The work is focused on monitoring and detail survey of eventual changes in Ostřice river bed in Horní Planá cadastre area. It was done in two phases in different seasons. The work objective is to outline and secure position of cross sections on the sides of the river polygon, followed by their survey. The work consists of two sections {--} theoretical and practical. The theoretical section first explains establishment of a dot field by geodetic points. This is followed by description of a detail dot field, requirements for the individual points, methods of their survey, detail mapping of these points as well as establishment of water stream lengthwise sections and cross sections. The practical part includes characteristics of the surveyed location. In addition there is description of preparatory work, necessary for land survey and the survey itself, using both existing and newly established points of the dot field. At the end there is explanation of auxiliary and detail points calculation and method of their graphic processing. The conclusion includes assessment of changes between April and August surveys of the subject territory.

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