The evaluation of surface geological structure part of Moravian-Silesian Region in terms anthropogenic shapes for use of brownfileds

Hlavním cílem diplomové práce bylo zhodnocení povrchové geologické stavby části Moravskoslezského kraje v souvislosti s antropogenními tvary pro použití brownfields, kvantifikací genetických typů. V rámci práce byly kvantifikovány a zhodnoceny geologické prostředí kvartérního stáří, jednalo se o sedimenty glacilakustrinní, fluviální, glacigenní, eolické, glacifluviální, deluviální, proluviální, limnické, deluviofluviální, organické a antropogenní. Kvantifikace jednotlivých genetických typů probíhala zvlášť pro všechny vrstvy kvartérních řezů a zvlášť pro první povrchovou vrstvu. Diplomová práce přináší důležité poznání podílu jednotlivých geologických prostředí a umožní tak lepší provedení inženýrskogeologického průzkumu vzhledem k založení samostatné stavby.The main objective of the thesis was to the evaluation of surface geological structure part of Moravian-Silesian Region in terms anthropogenic shapes for the use of brownfileds by means of quantification of genetic types. In the context of the work the geological environment of quaternary age has been quantified and assessed. Those were the sediments glaciolacustrine, fluvial, glaciogenic, eolian, glaciofluvial, deluvial, proluvial, limnic, deluviofluvial, organic and anthropogenic. Quantification of the individual genetic types was carried out separately for all layers of the quaternary sections, and especially for the first surface layer. The thesis brings important knowledge of the proportion of each geological environment and allows for a better execution of engineering-geological survey due to the establishment of a separate construction.546 - Institut environmentálního inženýrstvívýborn

The analysis of possibilities of quaternaty geological structure of Ostrava basin and surroundings for engineering geological purposes

Cílem disertační práce byla analýza možností využití kvartérní geologické stavby Ostravské pánve a okolí pro inženýrskogeologické účely realizována vytvořením mapy vhodnosti pro zakládání staveb dle výpočtové únosnosti pomocí nově zjištěných informací z překryvných analýz mapy rajónování s kvartérní mapou. Geologická stavba horninového masívu byla propojena s hodnotami výpočtové únosnosti dle četnosti vzorků určitých základových půd v jednotlivých inženýrskogeologických rajónech. Navíc se tyto zjištěné informace propojily s nejvýznamnějšími geodynamickými procesy, které byly na tomto území zaznamenány. Mapa vhodnosti pro zakládání staveb byla rozdělena do třech kategorií na základě hodnot tabulkové výpočtové únosnosti. První kategorie (výpočtová únosnost menší než 100 kPa), která je nevhodná pro zakládání zabírá 24,4 % (12 534,0 ha) území. Druhá podmínečně vhodná kategorie (výpočtová únosnost 100 až 200 kPa) představuje největší část zájmového území s 53,9 % (24 626,1 ha). Nejvíce pozitivní variantu z pohledu zakládání představuje třetí vhodná kategorie (výpočtová únosnost větší než 200 kPa) s 18,7 % (8 547,4 ha). Další část disertační práce se věnuje porovnání a kvantifikaci širšího zájmového území plošného rozšíření geologických těles dle mapy rajónování a kvartérní mapy. Na základě tohoto širšího zájmového území bude možno v budoucnu vytvořit také podobné mapy vhodnosti nebo jiné analytické inženýrskogeologické účelové mapy, které využijí vektorového zpracování inženýrskogeologických map rajónování a geologických map čtvrtohorních pokryvných útvarů.The major goal of the dissertation was the analysis of possibilities of quaternaty geological structure of Ostrava basin and surroundings for engineering geological purposes realized by creating suitability map for the foundation of structures according to the computational load-bearing capacity using newly obtained information from overlapping analyzes of the engineering-geological zoning map with a Quaternary map. The geological structure of the rock mass was connected with the values of the calculated load-bearing capacity according to the frequency of samples of certain foundation soils in individual engineering geological zones. In addition, this information was linked to the most important geodynamic processes that were recorded in this area. The suitability maps for building foundations was divided into three categories based on the values of the tabular load-bearing capacity. The first category (load-bearing capacity less than 100 kPa), which is unsuitable for foundation, occupies 24.4 % (12,534.0 ha) of the territory. The second conditionally suitable category (load-bearing capacity 100 to 200 kPa) represents the largest part of the area of interest with 53.9 % (24,626.1 ha). The most positive variant from the point of view of foundation is the third suitable category (load-bearing capacity greater than 200 kPa) with 18.7 % (8,547.4 ha). The next part of the dissertation is devoted to the comparison and quantification of a wider area of interest of the area distribution of geological bodies according to the map of engineering geological-zoning and the Quaternary map. Based on this wider area of interest, it will also be possible in the future to create similar suitability maps or other analytical engineering-geological purpose maps, which will use vector processing of engineering-geological zoning maps and the Quaternary maps.541 - Katedra geologického inženýrstvívyhově

Services Provided by Selected Ski Resorts in the Krušné hory Mountains

Import 22/07/2015Předmětem bakalářské práce je srovnání vybraných lyžařských středisek a analýza jejich nabízených služeb turistům v Krušných horách. Úvodem se práce zabývá stručnou charakteristikou daného území a spojitostí vzniku zimních sportů v horských oblastech. Dále je podrobněji probrána problematika jednotlivých skiareálů, které jsou posléze vzájemně porovnány. Závěrečným dotazníkovým šetřením uskutečněným přímo v místě každého areálu jsou služby ohodnoceny dle jejich kvality.The subject matter of this bachelor work is a comparison od selected ski resorts and an analysis of service which is provided in the Krušné hory mountains. In the beginning the work is concerned with a brief characteristic of the stated area and with a relation to the origin of winter sports in mountains areas. Next there is discussed the issue of the particular ski resorts which are also compared in this work. The final questionnaire survey was realized in each of these ski resorts and provided service was rated according to the quality.Prezenční541 - Institut geologického inženýrstvívelmi dobř

A small-scale map analysis of the engineering-geological zone and landscape element dependencies for the land-use planning purposes in the Czech Republic

The aim of the article is to describe the connections among the engineering-geological zones and landscape elements on the level of a small-scale map analysis of a whole country. Next, it also brings quantified spatial information on the distribution of the different engineering-geological zones in the Czech Republic (CR) in relation to landscape elements as such information is strategic for engineering, agricultural, and forestry activities of different countries. The information is crucial for scientists and land-use planners, including the limiting conditions of the distribution of certain geological environments within a country, which helps to calibrate the activities and adjust to the environments. This study reports the results of an overlay analysis of engineering-geological zones of the Czech Republic and of landscape elements (Corine). However, the major aim was not the overlay analysis itself, but an analysis of the obtained information from the whole-country perspective. Existing GIS database of engineering-geological zoning maps and CORINE Land Cover for Czech Republic in Arc/INFO GIS format was used to be data source. All data were available as polygons. For data combination, we have used GIS tool Intersection, by which we have combined data from two data layers. Resulting layer and its database were then processed; areal extent and percentage for every class were calculated. The quantification is strategic for researchers, land-use planners, developers, and designers as they may pay better attention to the most widespread engineering-geological environments in a country, and thus possibly eliminate damage arising from identical attention being paid to all geological environments. Each country should pay attention to their geological environments based on spatial distribution, and in relation to the landscape element percentages.Web of Science781art. no. 2

Ocena infiltracja wód i wód gruntowych w strefie ochronnej wód obszaru Rožnov pod Radhoštěm (Czechy)

DOI nefunkční (18.1.2019)The article analyses the permeability of ground surface in order to implement artificial surface infiltration and groundwater recharge by means of surface spraying near the well field, from where groundwater is pumped using a collection gallery in the fluvial gravel terrace. The artificial groundwater recharge project was implemented in order to deal with the periods of drought and related lack of water to be pumped from the fluvial terrace. The area of interest was divided into quasi-homogeneous blocks of surface permeability. Surface spraying was applied in the permeable quasi-homogeneous block. The other low permeable quasi-homogeneous blocks were unsuitable for the application of spraying and groundwater recharge. In the research, two methods were applied to evaluate the ground surface permeability. The first method was in-situ measurements of surface permeability using a two-cylinder infiltrometer in a regular network of points near the collection gallery (drainage channel). The second method was used to evaluate the ground permeability based on soil grain-size curves, where the soil samples were drawn from the same network of points as in the first method. It showed that the majority of the area of interest is sufficiently permeable for the puposes of artificial groundwater recharge, except for three polygons, where the soils were low permeable and where ponds used to occur in the past. Based on the study, surface spraying using water from nearby ponds was applied via an irrigation system, which resulted in increased groundwater levels. In the future, artificial infiltration and groundwater recharge may be applied in analogous geological conditions.W artykule przedstawiono analizę wpływu oprysków rolniczych na wody powierzchniowę i infiltrację do gruntów w strefie ochronnej wód obszaru Rožnov pod Radhoštěm (Czechy), gdzie wody są odprowadzane do rzeki. Projekt sztucznego dostarczania wód do wód gruntowych został wdrożony, aby rozwiązać problem małej ilośi wód w okresach suszy. Obszar zainteresowania podzielono na quasi-homogeniczne bloki o okreslonej przepuszczalności powierzchni. Natryskiwanie powierzchniowe zastosowano w przepuszczalnym quasi-homogenicznym bloku. W badaniach zastosowano dwie metody oceny przepuszczalności powierzchni gleby. Pierwszą metodą były pomiary percepcji powierzchniowej in-situ za pomocą dwu-cylindrycznego infiltrometru w regularnej sieci punktów w pobliżu miejsca nawadniania (kanał odwadniający). Drugi sposób zastosowano do oceny przepuszczalności gruntu w oparciu o krzywe wielkości ziarna gleby, gdzie próbki gleby pobrano z tej samej sieci punktów jak w pierwszej metodzie. Wykazano, że większość badanego obszaru jest dostatecznie przepuszczalna dla sztucznegouzupełniania wód podziemnych, z wyjątkiem trzech wielokątów, gdzie gleba była słabo przepuszczalna i gdzie kiedyś występowały stawy. Na podstawie przeprowadzonych badań zastosowano natryskiwanie powierzchniowe przy użyciu wody z pobliskich stawów za pomocą systemu nawadniającego, co spowodowało zwiększenie poziomu wód gruntowych. W przyszłości sztuczne infiltracje i uzupełnianie wód gruntowych mogą być stosowane w analogicznych warunkach geologicznych.Web of Science232031

Soil contamination by tar in the alluvial sediments: case study of the brownfield remediation project in the Czech Republic

The paper aims to analyse the remediation of soils contaminated by black coal tar and other contaminants in relation to risk limits in the different geological environments. The research was implemented as a case study in one of the most expensive remediation projects of contaminated soils in alluvial sediments, in the locality of a former coking plant Karolina in an industrial city of Ostrava in north-east of the Czech Republic. Based on the level of risk, three contaminated geological environments (layers) were selected, which were examined for chemical limits that must be complied with after remediation using ex situ thermal desorption. Around 1.5 million tons (10,720 wagons of 72 m(3) and 14 m) of contaminated soils were dug out, which were subsequently treated ex situ by means of thermal desorption. In total, 12,200 t of contaminants were removed, among which non-polar extractable substances (NPES) amounted to 67.94% (8289 t), benzene to 12.25% (1494 t), naphthalene to 11.27% (1375 t), polycyclic aromatic hydrocarbons (PAH) to 6.43% (784 t), benzo(a)pyrene to 1.11% (135 t), phenol to 0.82% (99 t), arsenic to 0.16% (20 t) and mercury to 0.02% (3 t). The most hazardous in terms of contact with humans was the top layer of quaternary alluvial fine-grained soils (3664 t of removed contaminants, 30% of all contamination-layer I). However, the most contaminated layer was the lowest, permeable layer of quaternary alluvial gravel sediments (7479 t of removed contaminants, 61% of all contamination-layer III). The contamination penetrated into the highly permeable layer due to gravity and could not migrate further due to the abundance of impermeable Miocene grey-blue clay.Web of Science79

Small-scale regional engineering geological study of the Czech Republic evaluating the relationship between slope gradients and engineering geological zones

Abstract The aim of the small-scale regional engineering geological study of the Czech Republic was to evaluate the relationship between slope gradient and engineering geological zones. The research motivation was to determine the average slope gradient, 25%, 50% (median) and 75% quantiles related to the different engineering geological zones. This scientific information is critical from the perspectives of engineering geology, geotechnical engineering, and foundation engineering because an increasing slope gradient evokes the need to create a cut respectively foundation excavation or another excavation in the geological structure, which increases the probability of occurrence of the problem in terms of differential settlement and bearing capacity of the structures. The research was carried out in the territory of the Czech Republic in 8 Quaternary zones with soil foundation ground and 10 pre-Quaternary zones with rocks and semi-rocks and their eluvia. A significant difference in the statistical characteristics of slope gradients was found in the group of Quaternary engineering geological zones (evaluated group I) compared to the group of pre-Quaternary zones (evaluated group II). The value range of the average slope gradient was 1.65° (16.9%) to 5.89° (60.3%) for the Quaternary engineering geological zones (soil foundation ground), representing 43.4% difference. Whereas for the over-quaternary engineering geological zones (rocks, semi-rocks and their eluvia), the difference was much higher, 3.59° (36.8%) to 9.76° (100%—value determined as a referential because it was the maximum), which is also reflected in a more significant percentage difference of 63.2%

A comparative study of workability classes using seven case studies of engineering-geological investigations of sewer systems in Northern Moravia

Abstract While the main focus of numerous engineering-geological investigations is to determine load-bearing capacity and settlement in engineering structures, this article aims to point at the specificity of sewer system engineering-geological investigations, which focuses on workability of soils and rocks. The study deals with workability class assessment of seven different sewer system localities. The significance of this research lies in the mutual comparison of workability class assessment of these seven localities in terms of two different workability standards. Each of the standards represents an independent model of assessment and classification of workability. The first standard (CSN 73 1001) classifies soils and rocks into seven workability classes, while the second (EN ISO 14688) comprises only three workability classes. Each of the approaches has its advantages and disadvantages. In comparison to the first one, the second standard permits faster and easier classification of rocks, but may be less fair to investors or developers when considering the real engineering-geological conditions and costs of implementation. Rocks were newly classified into three (easy, medium and difficult) categories of earthwork realization difficulty. In the study, 33 layers were classified in the category of easy realization of earthworks, 8 layers in the category of a medium degree of earthwork realization difficulty, and two layers in the category of a difficult realization of earthworks

Studium optických, elektrických a morfologických vlastností tenkých vrstev PEDOT:PSS připravených s různými sekundárními dopanty metodou spiral-bar

The electrical, morphological and optical properties of a series of spiral-bar coated single layers of PEDOT:PSS influenced by the addition of 10 different secondary dopants have been studied. The optical properties of these samples have been analyzed over a broad spectral range from 190 nm to 30 microm using spectroscopic ellipsometry and transmittance. The isotropic model fits the ellipsometric data quite well. No substantial differences in the optical constants were obtained, despite a difference being expected from the significant change of specific electrical conductivity (by 3 orders of magnitude). In the infrared part of spectra, the multiple Lorentz oscillators’ model was used instead of the frequently used Drude model by applying narrow oscillators for molecular vibrations together with the broad oscillators describing electronic transitions in the mid-gap states. The geometrical parameters obtained from ellipsometry evaluation have been found to be in good agreement with standard mechanical characterization probes (profilometry and AFM). The highest value of the specific electric conductivity, 78.3 S/cm, was achieved by using n-methyl methanamide as a secondary dopant. The research results confirm that spectroscopic ellipsometry is a valuable tool for characterization of the functional layers used in printed electronics.Byly studovány elektrické, morfologické a optické vlastnosti tenkých vrstev PEDOT: PSS připravených metodou spiral-bar ovlivněné přidáním 10 různých sekundárních dopantů. Optické vlastnosti těchto vzorků byly analyzovány v širokém spektrálním rozsahu od 190 nm do 30 mikrometrů pomocí spektroskopické elipsometrie a optické propustnosti. K vyhodnocení elipsometrických dat lze využít isotropní model. Nebyly pozorovány žádné podstatné rozdíly v optických konstantách, přestože rozdíl se očekává vzhledem k významným změnám specifické elektrické vodivosti (o 3 řády). V infračervené části spektra byl použit model více Lorentzových oscilátorů namísto často používaného Drudeho modelu za použití úzkých oscilátorů pro molekulární vibrace spolu s širokými oscilátory popisujícími elektronické přechody v zakázaném pásu. Bylo zjištěno, že geometrické parametry získané z vyhodnocení elipsometrie jsou v dobrém souladu se standardními mechanickými charakterizační sondami (profilometrie a AFM). Nejvyšší hodnota specifické elektrické vodivosti, 78.3 S / cm, byla dosažena za použití N-methyl methanamide jako sekundárního dopantu. Výsledky výzkumu potvrzují, že spektroskopická elipsometrie je cenným nástrojem pro charakterizaci funkčních vrstev používaných v tištěné elektronice

Surface geophysical methods used to verify the karst geological structure in the built-up area: A case study of specific engineering-geological conditions

This article presents a research study of complex limestone karst engineering-geological conditions in the municipality Valaska near Banska Bystrica in Slovakia. The aim of the study is to demonstrate the impossibility of spatial identification of cave spaces using surface geophysical methods due to the specific engineering-geological conditions of a thick surface layer of anthropogenic fill containing highly heterogeneous anthropogenic material. Its maximum thickness is 3 m. Another specificific condition of the study area is its location in the built-up area, due to which the applicability of geophysical methods was limited. The article contains methodological recommendations to be used in analogous geological conditions with karst structures topped with anthropogenic fill, which complicates the identification of cave spaces. The recommended solution herein is the identification of the cave system using underground mapping of the karst and its projection onto the surface for which surface geophysical methods have been combined.Web of Science9551770176