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Revitalization of the object
Mík, Petr ; Spáčilová, Jitka (referee) ; Spáčil, Miroslav (advisor)
This master´s thesis called „Revitalization of object“ is compiled as a project documentation according to relevant technical regulations and norms. Object is designed as a four-story building including two below-ground stories and an attic. It is comprised of a brick wall system stemming from present stone foundations and a sloped framed roof. All ceilings are based on existing horizontal constructions. Object is newly laid out as a five-unit flat house with facilities included.
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Study of rehabilitation of the sewer network of selected parts urbanized area
Voldán, Karel ; Malaník,, Stanislav (referee) ; Raclavský, Jaroslav (advisor)
The aim of the diploma thesis was the elaboration of a study of the rehabilitation of the sewerage network in the part of the town of Znojmo. The work is conceived in the form of accompanying and technical reports. The accompanying report contains a brief description of the interest site, basic information about the sewerage system operator and land data. The technical report contains a description of the individual segments of the sewer network, supplemented by photo documentation of the selected faults located on the selected sections. In addition, the evaluation of the structural state of the sub-sections is carried out here. The following subchapter draws up two hydraulic models and their modifications after the recovery of the sewer system. Another part of the technical report describes possible options for remediation technologies. The last part deals with the conclusions and recommendations for the sewer network operator including a briefly outlined economic page in the selection of remediation technology.
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Impact of injection on mechanical and physical characteristics of mortar
Fridrich, Pavel ; Myslín, Jiří (referee) ; Tomíček,, Oldřich (referee) ; Klečka,, Tomáš (referee) ; Tuza, Karel (advisor)
The increased moisture of the building materials causes the change of its mechanical and physical characteristic. In particular the high amount of loose water in construction shorten the lifetime of the building, is harmful to human beings due to biotic factors and increase the economic expenses of usage of the building. Apart from the costs of rehabilitation the loose water deteriorates the thermal insulative ability (thermal conductivity coefficient ) of perimeter masonry as well. The moisture gets into masonry not only through its deffects but also due to many different reasons. In order to improve the utility value of the buildings we have to deal with the rehabilitation of damp masonry with view to all possible causes. Only the properly working damp proofing ensures the protection against the water leaking from the subfoundation of the building. One of the direct techniques which have undergone rapid progress in last few years is the injection procedure. With use of experimental methods in my dissertation I deal with evaluation of two injection compounds used in Czech Republic and with its impact on the characteristics of the mortar. With the modern hollow bricks (system THERM) it is possible to create horizontal infusion into the lateral mortar grooves in future.
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Study of rehabilitation of the selected part of the sewer network
Novák, Tomáš ; Malaník,, Stanislav (referee) ; Raclavský, Jaroslav (advisor)
The aim of this diploma thesis is a rehabilitation study of the sewer network on Vídeňská street in the city of Brno. The first part of the thesis includes an accompanying review including basic data about the sewage gutter, including the characteristics of the affected area with a detailed description of the geological and hydrogeological rates. This is followed by a technical review, which consists of hydrotechnical calculations and overal summary of the construction-technical condition. The subject of the following part is a proposal and description of several varying solutions for the rehabilitation, including, particularly, trenchless technologies. Further on, all of the proposed variants are evaluated based on technical, economical and environmental impact. Finally, all the observations are summarized and a final recommendation for the way of solving the rehabilitation is carried out.
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Assessment of ventilated floors construction
Jurka, Jiří ; Kmínová,, Hana (referee) ; Šilarová,, Šárka (referee) ; Šťastník, Stanislav (referee) ; Škramlik, Jan (advisor)
Air insulation, especially its efficiency, is often underestimated and most often it is recommended as combination of several methods by our experts. It is known that flowing air used to eliminate excessive humidity in lower construction is insignificantly promoted. Already our ancestors in ancient Rome had experience with implementation of air insulations. However, nowadays such design is connected with many doubts and it forces us to use sense, especially knowledge of construction physics. So it urges higher technical precision when designing functional ventilation system. Each building is actually a unique object, with regard to its position and used properties, that is why certain natural conditions must be accepted when designing. It is more complicated and figuratively speaking it can be written in c. 20 equations of twenty unknowns. Other problems arise in unknown coefficients to individual parameters and their effects. From another point of view it is the issue of changing air during the day, passing fronts, annual cycles and all of these in relation to internal environment of the building, materials used in the construction, land properties of rocks, and last but not least, relation to the terrain around the building. Then there are the effects of the building's altitudes etc. In total they are cycles with sine character of dampening and drying. The thesis discusses how to test the functionality of AIR insulations designed for the floor ventilation in historic buildings and follows on from the previously published articles. A flow analysis is being performed on an object of the city of Žirovnice which has been registered in the list of cultural monuments and was built as a brewery in the years 1589-1592 on the site of an older medieval building. This article brings new air-flow element. The aim of the article is to analyse in detail the air flow in a specific floor void with the aid of modern CFD programs and experimental measurements using the ALMEMO
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Study of rehabilitation alternatives of the selected part of the sewerage network
Dvořák, Pavel ; Prax,, Petr (referee) ; Raclavský, Jaroslav (advisor)
The theme of this bachelor thesis is elaboration, evaluation and comparison of alternative ways of solving the reconstruction of a part of a sewer network. For this purpose, this bachelor thesis is divided to two parts. In the first part, there is a researchof the metods used for repair and reconstruction of a sewer network, with the greatest emphasis being placed on methods of renovation, whose goal is to improve the functional and operational properties of the sewer. There are also descriptions of technological procedures, usability area and the basic technical parameters from manufacturers. In the second part, the acquired knowledge is applied in the solution of the reconstruction of the real sewer network, namely in the urban part of Znojmo, Znojmo - město, the residential area of Pražská street. Two solutions have been developed. At first variant only trenchless technologies were considered, in the second variant a recovery of the pipeline by open trench.
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The study of selected rehabilitation of sewer network
Lžičař, Jakub ; Habr,, Vladimír (referee) ; Raclavský, Jaroslav (advisor)
The diploma thesis deals with sewage systems, evaluation of their technical conditions and various methods of sewage system reconstruction. First chapters provide theoretical background for sewage system reconstruction and contains general information about sewage systems and basic terminology. Next chapters describe the theoretical procedure of elaboration of proposal of existing sewage system remediation including the evaluation of technical conditions of sewage system and the evaluation of individual technical indicators. Then, individual methods of sewage system reconstruction are described. The second part of diploma thesis deals with the case study of sewage system in the village of Mikulovice. The case study is elaborated according to procedure specified in the theoretical part of diploma thesis. The case study includes the passportisation of sewage system and the evaluation of technical conditions of three selected sections. On the grounds of discovered defects, the methods of sewage system reconstruction are designed. Finally, each section of sewage system is evaluated and optimal method for its reconstruction is selected.
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Usability of hig speed water jet in civil engineering
Boucníková, Veronika ; Sitek,, Libor (referee) ; Bodnárová, Lenka (advisor)
The bachelor thesis deals with possibilities of using high-speed water jet in construction industry. In the theoretical part, water jet technology was generally described and a research for use in the construction industry with an emphasis on the application of concrete structures redevelopment and the process of interaction of water jet with concrete was done. Furthermore, the safety risks during work with high-speed water jet and the possibilities of recycling of waste generated by the use of this technology were evaluated. In the experimental part were prepared concrete samples with dispersed concrete reinforcement. The characteristics of the concrete samples were determined and the depth and appearance of the cross-section after interaction with the high-speed water jet was evaluated.
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