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Mathematical models of retention object of urban drainage
Pavlík, Ondřej ; Stanko,, Ing Štefan (referee) ; Pollert,, Jaroslav (referee) ; Prax, Petr (advisor)
This work deals with the use of 3D mathematical models of fluid in water management practice. Using 3D mathematical model was assessed retention tank Jeneweinova, which is situated on a sewer network of the city of Brno and is an important object of urban drainage. Retention basin designed to keep overflow from CSO chambers to Svratka and Svitavský náhon during storm events. Retention tank Jeneweinova is suitable for the assessment, because tank was designed bassed the Master Plan drainage of Brno using 1D mathematical model. Another factor was the physical model, which was build in LVV Vin FAST BUT. And finally, near the retention tank will be installed measurement on the sewerage network, which will be able to verify the results whitch has been predicted in this work. Mathematical model of retention tanks Jeneweinova was build in software FLOW-3D. FLOW-3D is a general purpose CFD (Computational Fluid Dynamics) software for flow of fluid in steady and unsteady mode and uses computational techniques to solve the equations of motion of fluids. This software is mainly used for the calculation of hydraulic fluids, gas flow and heat transfer simulations. Results from 3D mathematical model has been compared with the values in the physical and 1D mathematical model.
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Analysis of ageing of selected materials used in sewage systems
Horák, Marek ; Stanko,, Ing Štefan (referee) ; Tlolka, Jan (referee) ; Raclavský, Jaroslav (advisor)
The doctoral thesis deals with analysis of the ageing of concrete and reinforced concrete pipes in sewage systems. The ageing of the sewage system is caused by several reasons, for example material abrasion, chemical and biological corrosion and subsequent static overload sewer construction. One of the common causes of degradation of sewage systems made from materials bonded with cement sealant is biogenic sulphate corrosion. Due to the corrosion the degradation of the pipe walls accelerates, particularly in upper part of the pipe and reduces planned lifetime of the sewage system. There is proposed new ageing analysis monitoring method for observation and evaluation of the loss of thickness of concrete and reinforced concrete pipes, which is caused by biogenic sulphate corrosion. Residual lifetime is calculated from the expected corrosion rate, it`s the loss of wall thickness on the monitored section of the sewer system. There is designed the monitoring system of the loss of wall thickness on the sewage system for practical application of the measurement procedure, which is administrated in cooperation with the BVK, a. s. The thesis uses existing knowledge regarding this subject. We use this information for better understanding of the process of the loss of wall thickness in sewage systems in real time and the posibility to correct and in-time implementation of appropriate operational measures. This should cause the limitation of the degradation process of piping material while extended service life and safe operation in sewage systems within the required time period. Based on the methodology is proposed to determine the residual life of the sewage system and maintenance and rehabilitation can be done more effectively. There is needed to be noted that only long-term monitoring period can bring a better overview of the technical condition of sewage systems in time and thus better and more effective maintenance and rehabilitation, which is related to the effective u
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Design of rehabilitation of selected parts of the sewer network in Valašské Meziříčí
Škařupová, Karolína ; Karásek, Miloš (referee) ; Raclavský, Jaroslav (advisor)
The aim of this master´s thesis was design of rehabilitation of selected parts of the sewer network in Valašské Meziříčí. The work is divided into several parts. The first part is a description of the preliminary research based on appointments with the operator of the sewer network. The second section describes the basic information on the assessment of the sewer network. In the third part, the evaluation of technical and operational conditions according to ČSN EN 13 508. This section was supplemented by creation of supportive software program in Microsoft Office Excel, which is based on the proposed TNV 756905. In the next part the environmental assessment was performed digging and trenchless technology and then selected a possibility representative to design of selected parts. The fifth and sixth section contains technical and economic evaluation designed technology. A final section deals with the choosing optimal rehabilitation technologies for the design of selected parts of the sewer network.
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Design of the Střížov sewer network
Vrána, Radek ; Úterský, Michal (referee) ; Ručka, Jan (advisor)
The aim of this bachelor's thesis is to elaborate the proposal technical design of the drainage village Střížov by combined sewer network. The first part deals about the area of interest. In the next part the thesis deals with the design and description of the location of sewer with respect to crossing with existing utility lines. It is also processed hydrotechnical situation of dewatered area and detailed longitudinal profile of the main collector.
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Simplified documentation of the sewerage network of the Doubravník
Doušková, Zuzana ; Hluštík, Petr (referee) ; Ručka, Jan (advisor)
Pasport of sewer system in township Doubravník is aim of this bachelor thesis. It was atudied construction of shaft, depth of tributaries and runoffs of pipeline, presence of sediments and balast water and it was assessed the overall condition of sewer and of an objects connected to it during field research. Summary of shafts according to revision sheets, photo dokumentation, posport and evaluation of technical condition of sewer and creation of broader context site plan, sinoptic site plan, detailed site plan and hydrotechnical site plan of sewer network of township Doubravník it work output.
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Assessment of selected parts of the sewer system in the village
Balas, Jan ; Úterský, Michal (referee) ; Hluštík, Petr (advisor)
The Bachelor´s thesis is focused on software products in hydraulic design and assessment of sewer networks. The thesis is consist of research part, where the commonly used programs in Czech Republic and abroad are listed. The next part aims to describe hydro-dynamic simulation model Storm Water Managment Model, which is free to download from U.S. EPA websites. The practical part deals with creating a model of the sewer network by the SWMM and hydraulic assessment of selected parts of the sewer system in the village Lipůvka, South - Moravian region.
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Operating and technical condition of the sewer network
Škařupová, Karolína ; Raček, Jakub (referee) ; Raclavský, Jaroslav (advisor)
The aim of this bachelor thesis was to prepare a list of methods which used for analyzing the operational and technical condition of the sewer network. In this thesis, I worked up a support software program in Excel which is based on the proposed 756905 TNV (Design) for the assessment of sewer networks, sewer systems and buildings. The first part is treated by means of research and deals with methods and apparatus to determine the operational and technical condition of the sewer network. To better understand the issue, this part be supplemented with information from the design of sewer networks and sewage connections. The second part deals with the technical assessment of the sewer network and classification coding system according to EN 13508-2 and 756,905 according to TNV (Design).
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Time series analysis of the waste water flow in the pressure sewer
Ambrož, Martin ; Beránek, Josef (referee) ; Ručka, Jan (advisor)
This Bachelor Work is describing the time series analysis of outlet from pressure waste water sewerage and detailed statistic data evaluation in village Štěpánovice. In terms of this Work there were realized detailed evaluation of measured time series of flow by 5 minutes in 4 calendar months. Data evaluation was realized by software programme STATISTICA and MS EXCEL with output to determination of an average and maximal daily flow, maximal and minimal hourly flow and coefficient of non-uniformity. At the same time there was found out with statistic probability number of simultaneous running pumps of pressure sewerage of Štěpánovice village.
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