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Mechanical behaviour of cemented fine-grained soils - simulation of undisturbed samples
Trhlíková, Jana
The mechanical behaviour of natural clays is influenced by the degradation of the structure developed during and after deposition. In order to model the influence of structure artificially cemented specimens have been prepared. A series of one-dimensional compression tests of cement treated kaolin specimens were analysed. The effect of bonding and debonding on compression of the specimens was observed. The compression of cemented specimens was not monotonic, depending on disturbance of the structure. Cement content and curing period were found the main factors influencing the compressibility of cement treated kaolin clay. The possibility of using cement treated kaolin to model naturally cemented soil was confirmed. For the purpose of the research described in this dissertation, artificial cementation bonds were created in a model clayey material by adding 4% of Portland cement to kaolin clay. The mechanical behaviour of the model material at compression and shearing was compared with the behaviour of the pure reconstituted kaolin clay. Triaxial CIUP tests were carried out in determining the shear strength. Submersible LVDT's and bender elements were used for measuring of the shear modulus to identify the destructuration of the specimens. The experimental behaviour was successfully simulated by the...
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Mechanical behaviour of cemented fine-grained soils - simulation of undisturbed samples
Trhlíková, Jana ; Boháč, Jan (advisor) ; Herle, Ivo (referee) ; Miča, Lumír (referee)
The mechanical behaviour of natural clays is influenced by the degradation of the structure developed during and after deposition. In order to model the influence of structure artificially cemented specimens have been prepared. A series of one-dimensional compression tests of cement treated kaolin specimens were analysed. The effect of bonding and debonding on compression of the specimens was observed. The compression of cemented specimens was not monotonic, depending on disturbance of the structure. Cement content and curing period were found the main factors influencing the compressibility of cement treated kaolin clay. The possibility of using cement treated kaolin to model naturally cemented soil was confirmed. For the purpose of the research described in this dissertation, artificial cementation bonds were created in a model clayey material by adding 4% of Portland cement to kaolin clay. The mechanical behaviour of the model material at compression and shearing was compared with the behaviour of the pure reconstituted kaolin clay. Triaxial CIUP tests were carried out in determining the shear strength. Submersible LVDT's and bender elements were used for measuring of the shear modulus to identify the destructuration of the specimens. The experimental behaviour was successfully simulated by the...
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The Proposal for an Appropriate Method of a Company Car Fleet Funding
Trhlíková, Jana ; Kukulová, Martina (referee) ; Kocmanová, Alena (advisor)
The master‘s thesis concerns an analysis of the current estate of the company car fleet in the company ABB Ltd. and with a proposal of an appropriate method of its funding. The thesis considers the theoretical base of funding methods and account and tax aspects of lease funding. In the next part the current estate and current funding is analysed. Chosen leasing companies and their offers of financial and operational leasing are examined. In the suggestions part different methods of lease funding are compared. The monthly costs of each method of funding are reckoned and the appropriate method is suggested considering account and tax aspects. This method will decrease the costs of the company car fleet and will increase the efficiency of its controlling.
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Financial Situation in Company IFE- CR, Inc.
Trhlíková, Jana ; Votápková, Ivana (referee) ; Kocmanová, Alena (advisor)
The bachelor's thesis analyses financial situation of IFE-CR, Inc. company within the time period of 2001 to 2005. Financial documents such balance sheet, income statement and cash flow were used to retrive information essential to provide financial analysis using the method of elementary technical analysis. Based on the results of the project, this thesis suggests financial strategy to improve the current financial situation of the company.
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