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Retaining Walls
Pospíšil, Jan ; Boštík, Jiří (referee) ; Glisníková, Věra (advisor)
The objective of thesis is to create a comprehensive overwiew of the most commonly used retaining walls in the Czech Republic and to characterize their properties, method of assessment, advantages, disadvantages or causes of failures. Based on these findings will be designed selected type of retaining wall in Rebešovice.
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Back-analysis of instrumented load test of large-diameter bored pile using load-transfer method
Bírošík, Matej ; Koudela, Pavel (referee) ; Chalmovský, Juraj (advisor)
The thesis is divided into four parts. The first part is theoretical and consists of description of load-transfer method and its principal defined by (Reddy a ďaľší, 1998), where is explained calculating algorithm for predicting behaviour of loaded large-diameter bored piles. In the second part are all information about analysed instrumented load tests including measured values, which are interpreted by tables and graphs of load-transfer curves, load transfers in individual sections and shear friction values along the pile. This part also includes analyses of the influence of the pile axial stiffness uncertainty. The third part consists of parametric study. This study displays effects of different parameters on pile behaviour prediction during loading through load-transfer curves and load transfers in individual sections along the pile obtained from the programme developing at the Institute of Geotechnics, Faculty of Civil Engineering BUT in Brno, for large-diameter bored piles behaviour prediction. In the fourth part is evaluation and description of back-analysis of two instrumented load tests by already mentioned programme. The goal in the back-analysis was to reach the same parameters of load-transfer curves and load transfers in individual sections along the pile by surrounding soil parameters adjusting.
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The Design of Nedašova Lhota Landslide Securing
Janík, Michal ; Polášková, Alena (referee) ; Glisníková, Věra (advisor)
The thesis called The Design of Nedašova Lhota Landslide Securing concentrates on the basic analysis of the problems connected with landslides and safety factors needed for the slopes stability. At the same time it presents a concrete solution to the given practical task, where the slope stability, the causes leading to the landslide and the subsequent redevelopment in view of financial requirements are discussed.
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Securing of Deep Cut in Slide Area
Pargač, Martin ; Boštík, Jiří (referee) ; Glisníková, Věra (advisor)
The thesis called Securing of Deep Cut in Slide Area focuses on the basic analysis of the problems connected to landslides and securing of the slopes. It also presents a solution of a certain problem, where the slope stability, potencional landslide launchers and subsequent remediaton are discussed.
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Permanent Security of Slope Cut
Závacký, Martin ; Štefaňák, Jan (referee) ; Masopust, Jan (advisor)
The theme of this work is to create an overview of casing deep trenches. Furthermore, in order to practically apply the knowledge and propose appropriate security solution for a particular site based on its specifics. The proposed solution then statically assessed.
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Evaluation of loading test of jet-grouted piles
Čechová, Simona ; Račanský, Václav (referee) ; Chalmovský, Juraj (advisor)
The master thesis consists of a theoretical part and a practical part. In the theoretical part jet-grouting technology is described briefly. Mechanical properties of jet-grouted piles were characterized. Various estimation methods of ultimate pile bearing capacity are described in this thesis – analytical calculation of ultimate bearing capacity for bored piles and estimation of ultimate pile bearing capacity by analysis of load-displacement curve defined by CHIN (1970; 1972). Load transfer method for piles and hyperbolic load-transfer curve are introduced. As a part of the load-trasfer method analysis, a method of estimating ultimate pile shaft friction called beta method is defined. In the practical part were evaluated several static load tests of jet-grouted piles and were constructed their load-displacemnt curves. Then reverse analysis of the results from static load tests was performed using load-transfer method. Then ultimate pile bearing capacity was estimated using analytical calculation of pile bearing capacity for bored piles and using analysis of load-displacement curve with method by CHIN (1970; 1972). By evaluation of load transfer method and beta method ultimate shaft resistence for each pile was estimated. Results and load-displacement curves were compared.
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Determination of load-transfer functions for bored piles
Čechová, Simona ; Račanský, Václav (referee) ; Chalmovský, Juraj (advisor)
The thesis is consisted of theoretical and practical part. In theoretical part was described nowadays commonly used method for analysis of single axially loaded replacement piles defined by Masopust (1994). There was also explained principle of load transfer method and was done analysis of mobilization curves, which are applied abroad, and finally were defined essential entry parameters for construction of selected load transfer curves. In practical part method by Masopust (1994) was transformed, limit shear stresses and tip resistances were calculated and values of deformation parameters for constructing cubic root curve and hyperbolic load transfer curve were deterined. In the last step both types of load transfer curves were constructed for shaft and pile tip of a replacement pile in different depths in fine-grained soil and in coarse-grained soil.
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Foundation pit design
Valkó, Attila ; Boštík, Jiří (referee) ; Doněk, Michal (advisor)
Diploma thesis deals with securing of foundation pit of family house in given geological conditions situated in Brno-Kohoutovice. The aim of the thesis is to list possible solutions of securing foundation pits in general and solve this geotechnical problem with an appropriate solution. Static calculations were performed by geotechnical software GEO5.
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