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Dubičná landslide - engineering geological mapping and Atterberg limits
Vavřich, Lukáš ; Jerman, Jan (advisor) ; Routner, Martina (referee)
This bachelor's thesis addresses the issue of slope deformations in the České Středohoří region and closely examines the landslide at the Dubičná site. In the late 1960s, significant slope deformations occurred here, endangering a railway embankment and the road beneath it. The landslide is situated in a geologically complex terrain where manifestations of Tertiary volcanism intersect with sediments from the Bohemian Cretaceous Basin. Due to the geological history, the broader vicinity of the studied area features numerous slope deformations with the potential to cause property damage and threaten human lives. Detailed field mapping was conducted in the landslide-prone area, resulting in the creation of an engineering-geological map of stability conditions. This map, utilizing modern remote sensing technologies, intricately depicts the progression, morphology, and shape of the landslide. Soil samples were also collected, and following prescribed laboratory procedures, their index properties were measured, including liquid limit and plastic limit moisture content. Based on the results of these measurements, the presence of a deformation zone within the landslide was estimated to be at a depth of approximately 5.5 meters.
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Slope stability of Jizera river valley slopes in Semily region
Kujan, Ondřej ; Novotný, Jan (advisor) ; Vybíral, Roman (referee)
The thesis deals with slope stability of a landslide "U Čtrnácti pomocníků", which is located in the north-eastern part of the city Semily in the Liberec district. The thesis is divided into theoretical and practical part. The theoretical part was carried out literature search on the issue and the natural conditions around the wider area of interest. The practical part consists of individual sections within which the research were conducted archival documentation, mapping areas of interest, own technical work, sampling and geophysical measurements and laboratory work and stability calculations. Also the engineering geological model of the landslide was created. The results of the practical part are used as the basis for the final engineering geological evaluation of this area.
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Slope deformations in the Bohemian Paradise - research, typology and conditions of origin
Merlíčková, Soňa ; Hartvich, Filip (advisor) ; Blahůt, Jan (referee)
This thesis deals with occurrence, conditions and character of slope deformations in the Protected landscape area (CHKO) Český ráj. This area is typically formed by sandstones, marls and claystones. Together with tectonic structures and lateral erosion of the Jizera River, they form suitable conditions for slope movements such as rockfall, sliding etc. With help extensive use of the scientific literature, character of study area as well as general conditions for the development of slope movements were described, and their typological classification was established. Next part of the thesis includes the chapters on the methods of research, and a description of the preliminary field research of the model localities. Furthermore, an analysis of causes of the slope movements using the data on climate from the stations of Czech hydro-meteorological institute was performed. Finally, the results are discussed with the referenced sources and conclusions to the topic are formulated. Keywords: CHKO Český ráj, slope movements, slope deformations, tectonics, lateral erosion, land-slide, rockfall, Lužický fault
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The analysis of precipitation thresholds on landslides
Procházková, Kateřina ; Vilímek, Vít (advisor) ; Smolíková, Jana (referee)
This bachelor thesis analyzes the possibilities of several models that serve to find treshold values of rainfall to trigger landslides. It first describes these models and then tries to compare and apply them. It sorts the models both by the principle of their method of computation and by destination of use. The thesis also examines existing data from Jizerské hory. Model FLaIR is used for this research and the computed results are then compared with those taken from model API and with a display of hourly rainfall (derived from the same data set). Lastly, the thesis examines whether it is possible to use FLaIR model to find an accurate treshold value of rainfall that would serve as a trigger for a landslide. It comes to an end that it is not possible given available information. Keywords: landslides, rainfall thresholds, FLaIR model, API
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Slope stability of Jizera river valley slopes in Semily region
Kujan, Ondřej ; Novotný, Jan (advisor) ; Vybíral, Roman (referee)
The thesis deals with slope stability of a landslide "U Čtrnácti pomocníků", which is located in the north-eastern part of the city Semily in the Liberec district. The thesis is divided into theoretical and practical part. The theoretical part was carried out literature search on the issue and the natural conditions around the wider area of interest. The practical part consists of individual sections within which the research were conducted archival documentation, mapping areas of interest, own technical work, sampling and geophysical measurements and laboratory work and stability calculations. Also the engineering geological model of the landslide was created. The results of the practical part are used as the basis for the final engineering geological evaluation of this area.
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Landslides, Scree and the Other Unusual Terrain Features in Topographic Databases and Digital Cartography
Šákrová, Michaela ; Lysák, Jakub (advisor) ; Kubín, Tomáš (referee)
Landslides, scree and other specific terrain objects in topographical databases and digital cartography Abstract Topographic maps capture detailed information about terrain. In traditional analogous way of creating these maps, understandable and illustrating cartographic symbology was used. However, certain spheres of symbology were modified with transition to digital topographic databases and digital cartography. Now they carry less information and are less illustrative. Main cause of this inaccuracy is imperfection of the cartographic software, which is unable to create appropriate symbology. This diploma thesis tries to solve aforesaid problem for some specific terrain objects as scree and landslides. These shapes are distinctive geomorphologic phenomenon in terrain, but they are often neglected as their occurrence in our territory is infrequent. Key words: topographic maps, digital cartography, scree, landslide, specific terrain object
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Slope movements in Semily region
Kujan, Ondřej ; Novotný, Jan (advisor) ; Kudrna, Zdeněk (referee)
In this thesis author deals with slope movements affecting the area around the river Jizera near the town Semily in Liberecký region. The aim of the work is to gather available resources and evaluate the results of research carried out so far in this area. Author also tries to point out the threat of some partially built-up slopes. They could be activated in the future for example by influence of increased precipitation or imprudent human activity.
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Slope deformations in the Bohemian Paradise - research, typology and conditions of origin
Merlíčková, Soňa ; Hartvich, Filip (advisor) ; Blahůt, Jan (referee)
This thesis deals with occurrence, conditions and character of slope deformations in the Protected landscape area (CHKO) Český ráj. This area is typically formed by sandstones, marls and claystones. Together with tectonic structures and lateral erosion of the Jizera River, they form suitable conditions for slope movements such as rockfall, sliding etc. With help extensive use of the scientific literature, character of study area as well as general conditions for the development of slope movements were described, and their typological classification was established. Next part of the thesis includes the chapters on the methods of research, and a description of the preliminary field research of the model localities. Furthermore, an analysis of causes of the slope movements using the data on climate from the stations of Czech hydro-meteorological institute was performed. Finally, the results are discussed with the referenced sources and conclusions to the topic are formulated. Keywords: CHKO Český ráj, slope movements, slope deformations, tectonics, lateral erosion, land-slide, rockfall, Lužický fault
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