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Poruchy staveb na poddolovaném území městské části Kladno-Švermov / Construction damages in the undermined Kladno-Švermov districtTrčková, Barbora January 2010 (has links)
The thesis is dealing with construction damages in the undermined Kladno-Švermov district. This area is situated in the Kladno Coal district, which is a part of the Kladno- Rakovník Basin. Kladno-Švermov is one of the places which have been affected by mining activity for more than last 150 years. Firstly the historical documentation, structure development and engineering geology investigations were reviewed. Secondly the area was investigated and the catalogue of 39 documentation points was made. The aim was to register visible construction damages on buildings, roads, or bricked fences, which could be caused by effects of undermining. The consequences of undermining in the Kladno-Švermov district are still apparent and the impacts of the hard coal mining are not finished. The main impact in the area is represented by subsidence basin. It has affected all the area and the damages are mainly caused by unequal descent. They are visible on some buildings, roads, or fences. Attachment number 3 is represented by commented catalogue of the main damages in the area and map of the undermined district with documentation points is enclosed as an attachment number 4.
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Statické řešení střešní konstrukce / Static design of roof structureDuda, Tomáš January 2014 (has links)
The subject of the diploma thesis is the design and static analysis of roof structure. It is prestressed roof shell (membrane) supported by a cable. The whole thesis is divided into several separated units according to task's specification. The text section describes the introduction to the issue of presstressed suspension cable constructions and displays their possible shapes, types and realizations. There is also technical report of solved shell, which was written on the base of the documents, drawn drawings and structural (static) analysis.
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Analýza chování kořene kotvy v jemnozrnných zeminách / Behavior analysis of a ground anchor fixed length in fine grained soilsChalmovský, Juraj January 2016 (has links)
Ground anchors represent an important structural element in the area of ground engineering. Despite an extensive usage of these elements, their design is usually performed using simple empirical and semi-empirical methods. An application of these procedures brings to the design a number of simplifying assumptions. The goal of the dissertation is to refine the computational design of ground anchors, analysis and quantification of selected factors significantly affecting their load displacement behavior. Firstly, the finite element method is applied. Two novel constitutive models are used: Multilaminate Constitutive Model for Stiff Soils (Schädlich, 2012) involving post peak shear softening of overconsolidated cohesive soils and Shotcrete Model (Schädlich, 2014) involving tension softening after tensile strength is reached. First constitutive model was used in order to simulate progressive decrease of skin friction along the anchor fixed length. Second constitutive model was applied for the grout material. In the next step, experimental program including several anchor load tests was carried out. The goal of the experimental program was to confirm conclusions from numerical studies and to obtain relevant data for further back – analysis. A newly developed application, in which all the findings from numerical computations and experimental measurements are incorporated, is described afterwards. The application is based on the use of so-called load-transfer functions. The program verification was conducted through series of back analysis of investigation anchor load tests realized on four different construction sites in two different types of fine-grained soils. The verification of the application is followed by series of parametric studies in which an influence of input parameters values is analyzed. Dissertation is concluded by the summarization of the most important findings.
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