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Geo-oriented mathematical modelling: multiphysics and multiscale
Blaheta, Radim
2014 - English
This contribution is aimed at a brief introduction to two important aspects of nowadays geo-oriented mathematical modelling: multiphysics and multiscale. Moreover, these types of modelling are illustrated on problems currently solved at the Institute of Geonics AS CR.The multiphysics means modelling of coupled physical phenomena. In the case of the geotechnical engineering, it is typically modelling of coupled thermo-hydro-mechanical (THM) processes, in other engineering branches, we can consider similar models, e.g. coupling of electric and mechanical phenomena. The modelling of coupled processes is particularly involved in modelling of sealing and plugging effects of bentonite barriers used in the design of underground repository of spent nuclear fuel. At present, the team at the Institute of Geonics is involved in the solution of Task A of the Decovalex 2015 project aimed at modelling in-situ SEALEX experiments, which were performed in Tournemire underground laboratory in France.
Keywords:
cyclic loading; thermal loading; dynamic loading; creep; underground opening; cyklické zatěžování; tečení
Available in digital repository of the ASCR
Geo-oriented mathematical modelling: multiphysics and multiscale
This contribution is aimed at a brief introduction to two important aspects of nowadays geo-oriented mathematical modelling: multiphysics and multiscale. Moreover, these types of modelling are ...
The history of measurement of rock mechanical properties at the Institute of Geonics AS CR
Konečný, Pavel; Blaheta, Radim
2014 - English
The rock testing and evaluation of parameters for description of rock behaviour is an important part of the research at the Institute of Geonics AS CR since its foundation as an independent institute of the Czechoslovak Academy of Sciences in 1982. Focusing on mechanical testing, the first testing device, the hydraulic press EDZ 100H made in GDR with maximum force 1000 kN, was acquired in 1980, when only a branch of the Mining Institute existed in Ostrava. This equipment was substantially extended in the eighties by two „small“ mechanical presses FPZ 100 (max. force 100kN) and FPZ 10 (max. force 10kN) purchased in 1987 from GDR. But a really great progress came with the mechanical press ZWICK 1494 (500 kN) controlled by computer with a possibility of recording and processing the data. This press was bought from ZWICK Ulm (FRG) in 1985. The deformation measurement was realized by the dial test indicators. The described equipment was used for rock testing with focus on elastic behaviour and uniaxial strength limits, which were required for solving engineering problems mostly related to the coal mining.
Keywords:
rock testing; measurement under uniaxial and triaxial loading; permeability tests; zkoušení; mechanické lisy
Available in digital repository of the ASCR
The history of measurement of rock mechanical properties at the Institute of Geonics AS CR
The rock testing and evaluation of parameters for description of rock behaviour is an important part of the research at the Institute of Geonics AS CR since its foundation as an independent institute ...
High performance computing in micromechanics
Blaheta, Radim; Hrtus, Rostislav; Jakl, Ondřej; Starý, Jiří
2014 - English
By micromechanics we understand analysis of the macroscale response of materials through investigation of processes in their microstructure. Here by the macroscale, we mean the scale of applications, where we solve engineering problems involving materials like different metals and composites in aircraft design or rocks and concrete in a dam construction. Different applications are characterized by different characteristic size. At macroscale the materials mostly look as homogeneous or they are idealized as homogeneous or piecewise homogeneous. A substantial heterogeneity is hidden and appears only after more detailed zooming view into the material.
Keywords:
analysis on CT scans; high resolution finite element solution; boundary value problems; solution of inverse problems
Available in a digital repository NRGL
High performance computing in micromechanics
By micromechanics we understand analysis of the macroscale response of materials through investigation of processes in their microstructure. Here by the macroscale, we mean the scale of ...
Georelief versus Western Brno Radial
Adam, D.; Kirchner, Karel
2014 - Czech
This paper deals with the historical road, which connected the Brno town with its western surroundings (Brno radial) and its linkage to georelief. Anthropogenic geomorphological forms conditioned by construction and operation of communication are discussed in detail, historical context is given. Předkládaný příspěvek se zabývá historickou pozemní komunikací, která spojovala město Brno se svým západním okolím (brněnská radiála) a její vazbou na georeliéf. Antropogenní geomorfologické tvary podmíněné stavbou a provozem komunikace jsou podrobně diskutovány, historický kontext je uveden.
Keywords:
historical road; Brno radial; georelief
Available in digital repository of the ASCR
Georelief versus Western Brno Radial
This paper deals with the historical road, which connected the Brno town with its western surroundings (Brno radial) and its linkage to georelief. Anthropogenic geomorphological forms conditioned by ...
Facors Reviatalization of Brownfields in the Czech Republic
Osman, Robert; Frantál, Bohumil; Kunc, Josef; Klusáček, Petr; Martinát, Stanislav
2014 - Czech
The paper deals with reuse of brownfields in the Czech Republic. Based on the analysis of information about re - use of residual spaces are shown major changes in the current management space. The paper is based on a comparison of two data files - specifically, the existing brownfields database managed by the CzechInvest and own database of brownfields that have a lready been revitalized. The paper is divided into three parts, the first part of the paper analyzes the structure of a revitalized brownfields, in the second part of the paper, the structure of this file is compared with the structure of existing brownfie lds and the third part analyzes the factors revitalization of brownfields. The paper aims to answer the question what functions take the brownfields after revitalization and what factors determine their reuse. Příspěvek se zabývá opětovným využitím brownfieldů v České republice. Na základě analýzy informací o znovuvyužití reziduálních prostorů jsou ukázány hlavní proměny v současném managementu prostoru. Příspěvek je založen na komparaci dvou datových souborů - konkrétně databázi stávajících brownfieldů spravované agenturou CzechInvest a vlastní databázi již revitalizovaných brownfieldů. Příspěvek je rozdělen do tří částí, v první je analyzována struktura souboru revitalizovaných brownfieldů, ve druhé je prostřednictvím komparativní analýzy tato struktura porovnána se strukturou souboru stávajících brownfieldů a ve třetí jsou analyzovány samotné faktory revitalizace brownfieldů. Příspěvek si tak klade za cíl odpovědět na otázky jakých funkcí brownfieldy po revitalizaci nabývají a jaké faktory rozhodují o jejich znovuvyužití.
Keywords:
space management; factors; revitali zation; brownfield
Fulltext is available at external website.
Facors Reviatalization of Brownfields in the Czech Republic
The paper deals with reuse of brownfields in the Czech Republic. Based on the analysis of information about re - use of residual spaces are shown major changes in the current management space. The ...
New Energy Landscape: Spatial Delimitation Based on the Location of Selected Renewable Sources (Case Study Area - Czech Republic)
Nováková, Eva
2014 - Czech
The contribution deals with the definition and the spatial delimitation of the new energy landscape which has been described in the Czech Republic only in theory yet. The primary database was created by means of GIS analyses based on combination three layers with installations producing energy from renewable sources - wind power plants, biogas plants and photovoltaic power plants with production capacity over 5MW. On the basis of this layer were spatially delimited areas of influ ence of these devices, and thus the theoretical range of the new energy landscape. The result of this study brings new knowledge about spatial distribution of new energy landscapes on the territory of the Czech Republic. The article should be starting poin t for future scientific researches and discussions, which should help not only to the improvements and modifications of the original methodology, should support the improvement of the decision - making processes associated with spatial planning at the differ ent hierarchical levels (national, regional, local). Význam energie generované z obnovitelných zdroj ů v Č eské republice neustále roste. S rozvojem jednotlivých sektor ů obnovitelných zdroj ů energií v š ak stoupá i ovlivn ě ní krajiny p ř ilehlé k t ě mto zdroj ů m. P ř ísp ě vek se zabývá územním vymezením nové energetické krajiny, která dosud byla na území Č eské republiky popisována pouze v teoretické rovin ě . Na základ ě GIS analýzy, která vyu ž ila vrstvu v ě trných elekt ráren, bioplynových stanic a velkých fotovoltaických elektráren s kapacitou výkonu nad 5MW byla vytvo ř ena základní databáze za ř ízení vyráb ě jících energii z obnovitelných zdroj ů . Na základ ě této vrstvy byly vymezeny oblasti vlivu t ě chto za ř ízení, a tím i úz emní rozsah nové energetické krajiny, který má význam nejen z v ě deckého hlediska, ale m ůž e p ř inést cenné informace i pro p ř edstavitele ve ř ejné správy, investory a ob č any. Výsledky této studie p ř iná š ejí poznatky o výskytu nové energetické krajiny na území Č eské republiky.
Keywords:
new energy landscape; renewable resources; biogas plants; wind power plants; photovoltaic power plants
Fulltext is available at external website.
New Energy Landscape: Spatial Delimitation Based on the Location of Selected Renewable Sources (Case Study Area - Czech Republic)
The contribution deals with the definition and the spatial delimitation of the new energy landscape which has been described in the Czech Republic only in theory yet. The primary database was created ...
Renewable Energy and Employment in the Czech Republic
Dvořák, Petr; Martinát, Stanislav
2014 - Czech
Development of renewable energy sources is primarily focused on environmental topics such as the climate change, or energy security and source availability. Moreover, it reflects new jobs opportunities and establishment of new economy sectors. The contribution deals with renewable energy sources and their dynamic development, which is documented by increasing number of potential jobs in this sec tor. The employment progress in main branches of “ green economy ” of the Czech Republic is analysed, and the collected data with main European trends and the main factors influencing structure of renewable energy sources in the Czech Republic are compared. The main goal of the contribution is to discuss the renewable energy sources benefits for employment and indirectly the Czech Republic competitiveness as well. Rozvoj obnovitelných zdroj ů energie prioritn ě cílí na environmentální témata jako je klimatická zm ě na, nebo otázky energetické bezpe č nosti a dostupnosti zdroj ů , av š ak má sv ů j otisk také v podob ě vzniku nových pracovních míst a vzniku celého nového ekonomic kého sektoru. P ř edlo ž ený p ř ísp ě vek se zabývá obnovitelnými zdroji energie a jejich dynamickým rozvojem, který dokumentuje na zvy š ujícím se po č tu pracovních p ř íle ž itostí v tomto sektoru. Podrobn ě analyzuje vývoj zam ě stnanosti v hlavních sektorech „ zelené en ergetiky “ v podmínkách Č eské republiky a dává je do souvislosti s vývojem v celé Evropské unii a také s hlavními faktory ovliv ň ujícími strukturu obnovitelných zdroj ů energie v Č R. Cílem p ř ísp ě vku je diskuse o p ř ínosu OZE na zam ě stnanost a zprost ř edkovan ě i konkurenceschopnost Č R.
Keywords:
renewable energy source; employment; Czech Republic
Fulltext is available at external website.
Renewable Energy and Employment in the Czech Republic
Development of renewable energy sources is primarily focused on environmental topics such as the climate change, or energy security and source availability. Moreover, it reflects new jobs ...
Inner Structure of Functionala Region: Theoretical Aspects
Erlebach, M.; Klapka, Pavel; Halás, M.; Tonev, P.
2014 - English
The contribution addresses theoretically the inner structure of functional region. It defines types of functional regions on the basis of selected criteria regarding their inner structure. As classification criteria a number of cores in a region, their hierarchical importance and ch aracter of interaction relationships between them and within a region have been employed. A study of functional regions is not important only for geography, but also for regional and spatial science and for planning practise.
Keywords:
functional region; inner structure; types of regions
Fulltext is available at external website.
Inner Structure of Functionala Region: Theoretical Aspects
The contribution addresses theoretically the inner structure of functional region. It defines types of functional regions on the basis of selected criteria regarding their inner structure. As ...
Brownfields and Tourism Development - Visitors´ Preferences Exampled on Brno City
Krejčí, Tomáš; Martinát, Stanislav; Klusáček, Petr; Tocháčková, K.
2014 - Czech
The article deals with issue of brownfields regeneration with special attention to brownfields redevelopment in tourism and leisure time activities. With connection to the theoretical discussion, there are presented the results of the field research with visit ors of the selected case study areas located on the territory pf Brno City (Czech Republic). The objective of this questionnaire survey was to identify the answer to the question how the new brownfield use in for tourism is perceived among visitors and ide ntify potential of the different types of brownfields from visitors ’ perspective. The results show the strong support for future housing utilisation, because regeneration of abandoned and neglected locations for housing needs was discussed among the visit ors the most intensively. P ř edkládaný p ř ísp ě vek se v ě nuje problematice regenerace brownfields se specifickým d ů razem na jejich vyu ž ití v cestovním ruchu a volno č asových aktivitách. V návaznosti na teoretickou diskusi jsou ve st ěž ejní druhé č ásti textu prezentovány výsledky terénníh o výzkumu s náv š t ě vníky vybraných p ř ípadových lokalit na území m ě sta Brna ( Č eská republika). Cílem dotazníkového š et ř ení a sou č asn ě i tohoto p ř ísp ě vku bylo najít odpov ěď na otázku vnímání nového vyu ž ití brownfields v oblasti cestovního ruchu a identifikova t potenciál r ů zných typ ů brownfields k jejich op ě tovnému vyu ž ití ze strany náv š t ě vník ů . Výsledky poukazují mj. na silné vnímání otázky bydlení v urbánním prostoru, nebo ť regenerace nevyu ž ívaných obytných objekt ů č i lokalit byla z jejich strany diskutována nejvíce.
Keywords:
brownfields; tourism; regeneration; Brno; Czech Republic
Fulltext is available at external website.
Brownfields and Tourism Development - Visitors´ Preferences Exampled on Brno City
The article deals with issue of brownfields regeneration with special attention to brownfields redevelopment in tourism and leisure time activities. With connection to the theoretical discussion, ...
Relief types as a basis for landscape of the Podyjí National Park
Kirchner, Karel; Havlíček, M.; Kuda, František
2014 - Czech
Canyon-like valley of the Dyje River with a number of incised meanders forms the state boundary between Austria and the Czech Republic. Valley of the Dyje River is a main geomorphological phenomenon and the axis of the Podyjí National Park, which was declared in 1991. Geomorphological research began to develop after the declaration of the Podyjí National Park, but so far has not been elaborated map of the relief types. This paper is the first attempt to create a map of relief types of the studied area. Three basic relief types have been defined in the study area: i) Polygenetic erosional-denudational regional planation surface, ii) Fluvial erosional-denudational slopes of the canyon-like valley of the Dyje River and its tributaries, iii) Polygenetic marginal slope of Bohemian Highland. Within these main types, 9 subtypes have been defined. Canyon-like valley of the Dyje River with a number of incised meanders forms the state boundary between Austria and the Czech Republic. Valley of the Dyje River is a main geomorphological phenomenon and the axis of the Podyjí National Park, which was declared in 1991. Kaňonovité údolí Dyje s množstvím zaklesnutých meandrů tvoří státní hranici mezi Rakouskem a Českou republikou. Údolí Dyje je hlavním geomorfologickým fenoménem a osou Národního parku Podyjí, který byl vyhlášen v roce 1991. Geomorfologický výzkum začal probíhat po vyhlášení národního parku, ale doposud nebyla zpracována mapa typů reliéfu. Předložený příspěvek je prvním přístupem k vytvoření mapy typů reliéfu zájmové oblasti. V tomto území byly definovány tři základní typy reliéfu: i) polygenetický erozně-denudační regionální zarovnaný povrch, ii) fluviální erozně-denudační svahy kaňonovitého údolí Dyje a jejich přítoků, iii) polygenetický okrajový svah České vysočiny. V rámci těchto tří typů byly vymezeno 9 subtypů reliéfu.
Keywords:
relief types; typological regionalization; Podyjí National Park
Available in a digital repository NRGL
Relief types as a basis for landscape of the Podyjí National Park
Canyon-like valley of the Dyje River with a number of incised meanders forms the state boundary between Austria and the Czech Republic. Valley of the Dyje River is a main geomorphological phenomenon ...
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