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Dewatering of foundation pit - numerical analysis
Krejzar, Vojtěch ; Boštík, Jiří (referee) ; Miča, Lumír (advisor)
The subject of the presented thesis is a foundation pit dewatering numerical analysis. The study is introduced with practical examples and the summary of the necessary theory. Individual subtasks are modeled as two or three-dimensional problem on a chosen foundation pit example. A comparison with analytical methods and theoretical knowledge about the problem is made. The studies focus on specifying the pumped water quantity, the shape of the depression curve, determining the size of the numerical model and the influence of the finite element network density. The steady-state flow cases, water table aquifer, a well system, sheet pile wall cutoff effect, surface drained pit and partial penetration cases are analyzed. The work proposes a method of modeling a well by FEM. The main output is a 3D analysis of a submerged excavation dewatered with a partially penetrated well system.
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Dewatering of foundation pit - numerical analysis
Krejzar, Vojtěch ; Boštík, Jiří (referee) ; Miča, Lumír (advisor)
The subject of the presented thesis is a foundation pit dewatering numerical analysis. The study is introduced with practical examples and the summary of the necessary theory. Individual subtasks are modeled as two or three-dimensional problem on a chosen foundation pit example. A comparison with analytical methods and theoretical knowledge about the problem is made. The studies focus on specifying the pumped water quantity, the shape of the depression curve, determining the size of the numerical model and the influence of the finite element network density. The steady-state flow cases, water table aquifer, a well system, sheet pile wall cutoff effect, surface drained pit and partial penetration cases are analyzed. The work proposes a method of modeling a well by FEM. The main output is a 3D analysis of a submerged excavation dewatered with a partially penetrated well system.
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Monitoring of settlement of embankment subsoil
Karlín, Petr ; Novotný, Jan (advisor) ; Kudrna, Zdeněk (referee)
: During each transport buildings are used embankments, therefore it is important to carry out a detailed geological survey. The task of the survey is to determine the soil properties (soil) for such embankments, bridges and other objects depend on the load. For many objects is undesirable reduction embankment over time, this phenomenon is mainly caused by the consolidation of underlying layers. Parameters find out from the engineering-geological survey is calculating for better prediction of settlement which is based on the value of consolidation. In the following monitoring is measured by change in soil elevation relative to a reference point. These values are further processed and compared with the calculation. Main aim of this work is to unify the addiction values of loading, settlement and time for 90% consolidation.
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