VSTE Institute of Technology and Business in Ceske Budejovice

České Budějovice, Czech Republic

VSTE Institute of Technology and Business in Ceske Budejovice

České Budějovice, Czech Republic
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Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Marschalko M.,VSB - Technical University of Ostrava | Drusa M.,University of Zilina | Durdak J.,VSTE Institute of Technology and Business in Ceske Budejovice | Orininova L.,University of Zilina
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

Hydrotechnical structures, even if they are small compared to the large water dams, are sometimes underestimated in geotechnical evaluation of stability. Stability analysis of hydrotechnical structures can be carried out by various methods of calculation. The differences are mainly due to consideration and taking into account some effects on the stability. Using a given example of designed and constructed firewater reservoir in the mountain area, the role of detailed stability evaluations can be demonstrated, which takes into account all kinds of negative factors influencing the stability. In this case of designed earth structure, we tried several alternatives of computational methods for the assessment of stability - from the limit equilibrium analysis methods to the finite element method (FEM), as well as a new method for calculating the stability by meshless (meshfree) method (MFM), methods which are not primarily intended for stability analysis. Stability analysis of hydrotechnical structures can be carried out by various methods of calculation. The differences are mainly due to consideration and taking into account some effects on the stability. The results of procedures were compared and evaluated in order to highlight the advantages and disadvantages of a new numerical analysis of slope stability calculations. © SGEM2015.


Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Marschalko M.,VSB - Technical University of Ostrava | Vlcek J.,University of Zilina | Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Kais L.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

The main questions at design of the reinforced structures are: necessary tensile strength of reinforced elements depending on the face part type, inclination and chosen backfill material. The limit states are verified by analytical design methods. The evaluation of deformations of the reinforced retaining walls is a problem, especially at high walls. Numerical modelling has advantages in a detail simulation of construction processes, time factor and load intensity. Correct description of face element behaviour, especially the soft layout of wrap-around face or gabions, becomes crucial because of its high influence on the overall visible and measurable deformations on the face. In this case, basket and fill of gabions were modelled separately to achieve more realistic results. Realization of in-situ and laboratory tests on reinforced elements or application of large scale physical modelling can offer additional data to restrict the indefiniteness in modelling of key parts of the structure. Afterwards, it will be possible to evaluate the potential unsuitability of flexible face elements for high retaining walls as shows results of the numerical modelling. © SGEM2015.


Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Marschalko M.,VSB - Technical University of Ostrava | Vlcek J.,University of Zilina | Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Bulko R.,University of Zilina
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

The actual trends in geotechnical engineering, concerning assessment of geotechnical problems by numerical analysis by Plaxis, Flac, ZSoil, Abaqus, Crisp or Midas require adequate input settings, values, parameters. In addition to sophisticated laboratory procedures, the main reason to support the use of field testing is continuous characterization of the testing profile, immediate evaluation of the characteristics and type of soil and determination of geotechnical parameters needed for constitutive models of soils. Conventional surveying methods like core boring with sample extraction for laboratory tests can offer only limited point information about rock environment. In geological environments with clayey and silty soils the most common in-situ testing methods are static penetration test CPTm, CPTu with piezocone, and seismic cone SCPT. Estimation of soil properties based on results of the penetration tests is reliable only if the probe is made with provided boreholes, supplemented by laboratory tests. Sample data from CPT examination of foundation conditions along the route R1 Nitra, west - Beladice - Tekovské Nemce are presented to show the calculation of parameters for advanced constitutive models of soils. © SGEM2015.


Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Marschalko M.,VSB - Technical University of Ostrava | Zasterova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Durd'ak J.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

Knowledge material composition coal waste dump is a necessary condition of their subsequent utilizations. Knowledge this fact gives a first prerequisite for possible mining and processing materials of coal waste dumps and their possible use as secondary construction materials. Coal mine dumps are specific geological environment which in its volume is relatively homogeneous. Intensive mining in the Ostrava-Karvina coal district left behind a lot of coal waste dumps. Coal waste dumps composite entirely of gangue material are very numerous (around 46). Heap of Ostrava-Karviná coal district have a specific character resulting from hard coal mining in Upper Silesian Coal Basin. Knowledge of the composition and behaviour of the material from coal waste dumps allow you to select the most optimal utilization of affected areas. Although their number is gradually decreases it is still a large area, which needs to continue to study. The basis for understanding the material composition of these coal waste dumps, there is an analysis of the material and also a schematic cross section of Ostrava-Karviná coal district. The aim of this publication is to analyze the character material. © SGEM2015.


Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Vondrackova T.,VSTE Institute of Technology and Business in Ceske Budejovice | Lamich D.,VSTE Institute of Technology and Business in Ceske Budejovice | Zasterova P.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

The aim of this publication is to study realization of aggressiveness of water in engineering geological and geotechnical practice. Determination of water aggressiveness is important for the knowledge of effect of concrete and steel. In the case that water is aggressive to concrete, located in the foundation structure, can be disturbed statics of the building or other malfunctions. Similar problems may occur in the case of steel elements. Moreover, various pipelines are steel pipes, which can be accelerated corrosion damaged. Determination of aggressiveness is thus one of the important goals engineering geological and geotechnical survey. © SGEM2015.


Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Durak J.,VSTE Institute of Technology and Business in Ceske Budejovice | Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Vondrackova T.,VSTE Institute of Technology and Business in Ceske Budejovice | Lamich D.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

Engineering geological maps are an important tool for the implementation of geological engineering surveys and research. This is a different view of engineering geological conditions in topographic maps. The aim of this publication is to provide analysis of character engineering geological maps in the Czech Republic. Each of engineering geological maps gives specific knowledge about the state of engineering geological conditions. These are displayed on the basis of a methodological approach according to the type of maps in a given scale. Subsequently, various different types of maps gives possibility of practical use for the building survey with different structure and character of engineering geological information. Analysis of the state maps is very important for engineering geological, geotechnical and construction practice. © SGEM2015.


Zasterova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Musilek J.,VSTE Institute of Technology and Business in Ceske Budejovice | Durd'ak J.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

Coal waste dumps are very important and characteristic element of the landscape influenced by the deep coal mining. The aim of this publication is to provide an analysis of the sequence of temporal evolution of coal waste dump bodies in the Ostrava city. Knowledge of possibilities of these mine waste bodies is important for a wide range of human activities. Mine waste materials are valuable building materials, which are used mainly for embankment bodies to road communications, etc. Remnants of coal waste dumps, subsequently serves as foundation soil. Very important is the knowledge of the state of coal waste dump for land use planning. It is used to determine the concept of landscape elements in the landscape after mining. © SGEM2015.


Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Marschalko M.,VSB - Technical University of Ostrava | Niemiec D.,VSB - Technical University of Ostrava | Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Duda R.,AGH University of Science and Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

From the viewpoint of engineering geology and geotechnical engineering, the most important aspect is the state of geological subsoil, which influences various geological hazards. Geofactors are the basic components of the geological environment, which influence on the realization of foundation engineering. In the implementation of engineering work can find a wide variety of problems and complications. The factors that enter into this process and their combinations are endless and cannot describe all the way. Therefore nine geofactors was compiled, which include the most common problems in the implementation of engineering work, when deciding on a suitable location for engineering work, but also the issues of existing engineering works. The assessment of engineering geological conditions, which are used for the evaluation of foundation soils and their interaction with the engineering works are very complicated. The geological environment is closely related to other factors that fundamentally influence its behaviour. The practicality of this scheme lies in its simplicity, which allows quick entry into information about the risks arising from individual geofactors. The aim of this publication is to analyze those geofactors and structuring of hierarchies their effects. © SGEM2015.


Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Durak J.,VSTE Institute of Technology and Business in Ceske Budejovice | Vondrackova T.,VSTE Institute of Technology and Business in Ceske Budejovice | Zasterova P.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

Mineability of rock is one of the most important characteristics of rocks in the field of engineering geology and geotechnical engineering. Mineability of rock is the amount of work that we need to expend to breakage resistance of rock, handling and loading rocks at surface earthworks. This characteristic is quantified using degrees of excavation difficulty. There are various classification systems with different span of individual classes. This property is the basis for the assessment of the financial costs of earthworks and it is one of the most important qualities for the economy of construction works. The aim of this publication is to make comparisons these systems. © SGEM2015.


Kubecka K.,VSTE Institute of Technology and Business in Ceske Budejovice | Vondrackova T.,VSTE Institute of Technology and Business in Ceske Budejovice | Bednarova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Zasterova P.,VSTE Institute of Technology and Business in Ceske Budejovice | Lamich D.,VSTE Institute of Technology and Business in Ceske Budejovice
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2015

The use of various geological databases is very important for construction practice. It brings a lot of important information that can be applied in geotechnical survey. We must remember that in the Czech Republic took place a number of different engineering geological surveys and research. Their results data are available in the final reports, which are centrally archived. Very convenient and economically preferred is to use the information obtained in previous works. It is possible only when we realize the research on the territory, in which has been in the past performed works. It is geological database boreholes, final reports, landslides and others. © SGEM2015.

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