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Guide to geological excursion in surroundings of Ostrava
Vašíček, Zdeněk; Martinec, Petr; Kožušníková, Alena; Konečný, Pavel
2011 - Czech
The paper describes the most interesting geological localities in Ostrava region. Landek is unique outcrop of Carboniferous sediments of Upper Silesian Basin (Namurian A). Zámek Conglomerate outcrop is an important locality of the Poruba Member occurring near Silesian-Ostrava Castle. Exploitation of Pleistocene glacial gravels will be visited in Lake Kališčák near Bohumín. Geological “men made” locality is Ema dump which consists of waste rocks of Ostrava Formation. V příspěvku jsou popsány zajímavé geologické lokality v okolí Ostravy: Landek, výchoz zámeckého slepence, štěrkovna Kališčák, hořící halda Ema.
Keywords:
geological localities; Ostrava; coal basins
Available at various institutes of the ASCR
Guide to geological excursion in surroundings of Ostrava
The paper describes the most interesting geological localities in Ostrava region. Landek is unique outcrop of Carboniferous sediments of Upper Silesian Basin (Namurian A). Zámek Conglomerate outcrop ...
Environmental geomorphology and possibilities of evaluation of geomorphosites: case study from the Protected Landscape Area Žďárské vrchy
Kirchner, Karel; Kubalíková, L.
2011 - Czech
Environmental geomorphology is the practical use of geomorphology for the solution of problems where humans wish to transform or to use and change surface processes. A special issue of environmental geomorphology is the protection of non-living nature or geoconservation. This activity involves the inventory and evaluation of geologic and geomorphologic localities that are worth of protection. These “geosites” or “geomorphosites” are parts of the landscape that acquired some special values thanks to the human perception. The example from Žďárské vrchy protected area is presented; some of the numerous rock forms are evaluated. Environmentální geomorfologie se zabývá praktickým využitím geomorfologie k řešení problémů kdy společnost využívá nebo mění současné procesy. Speciálním výstupem environmentální geomorfologie je ochrana neživé přírody nebo geoochrana. Tyto aktivity zahrnují inventarizaci a hodnocení geologických a geomorfologických lokalit, které mají ochranářskou hodnotu. Tyto geo-lokality a geomorfo-lokality jsou součástí krajiny, nabývají novu hodnotu díky percepci člověkem. V příspěvku je uveden hodnocení příklad z CHKO Žďárské vrchy, kde byla hodnocena řada skalních útvarů.
Keywords:
environmental geomorphology; geomorphosites; Žďárské vrchy protected area
Available at various institutes of the ASCR
Environmental geomorphology and possibilities of evaluation of geomorphosites: case study from the Protected Landscape Area Žďárské vrchy
Environmental geomorphology is the practical use of geomorphology for the solution of problems where humans wish to transform or to use and change surface processes. A special issue of environmental ...
Experimental seismological measurement in railway tunnel Olbramovice
Stolárik, Martin
2010 - Czech
The paper describes another experimental seismological measurement in shallow tunnel, located at Fourth railway corridor. New Austrian Tunneling Method was used to construct the tunel using blasting operations on core. Příspěvek popisuje další experimentální seizmické měření v mělce uloženém tunelu, nacházejícím se na budovaném IV. železničním koridoru. Tunel je ražen Novou rakouskou tunelovací metodou za použití trhacích prací na jádře.
Keywords:
railway tunnel; New Austrian Tunneling Method; seismological measurement
Available at various institutes of the ASCR
Experimental seismological measurement in railway tunnel Olbramovice
The paper describes another experimental seismological measurement in shallow tunnel, located at Fourth railway corridor. New Austrian Tunneling Method was used to construct the tunel using blasting ...
Stability control of double used roadways with combined support
Šňupárek, Richard; Konečný, Petr; Ptáček, Jiří; Koníček, Petr
2010 - Czech
Double using of roadways in coal mines requires special kinds of support. Combined support consisting from bolting and steel arch supports is described. The paper contains methods of dimensioning and design of combined support in conditions of Ostrava Karviná coal basin. Dvojí použití porubních chodeb v uhelných dolech vyžaduje použití speciálních druhů výztuže.Kombinovaná výztuž sestává ze svorníkové výztuže a podpěrné ocelové obloukové výztuže.Článek obsahuje metrody dimenzování a projektování kombinované výztuže v podmínkách OKR.
Keywords:
stability; roadways; support
Available at various institutes of the ASCR
Stability control of double used roadways with combined support
Double using of roadways in coal mines requires special kinds of support. Combined support consisting from bolting and steel arch supports is described. The paper contains methods of dimensioning and ...
Influence of isolated forest fragments area and environmental conditions to vascular plant speciees diversity
Halas, Petr
2010 - Czech
In this brief paper I deal with to lists of vascular plant species evaluation relate to environmental condition and morphometrical parameters of individual isolated forest fragments. Studied isolated forest fragments are located on eastern part of the Českomoravská vrchovina highlands, tree layer forms broadleaved and mixed forests near nature vegetation. At the beginning of the research I have had presumtion: isolated forest fragments area, their isolation and landscape character (landuse especially) too influence to species composition, number of vascular plant species. This reciprocal relationship was solved using regression tree models.
Keywords:
forest fragment; ecology; regression model trees; classification
Available at various institutes of the ASCR
Influence of isolated forest fragments area and environmental conditions to vascular plant speciees diversity
In this brief paper I deal with to lists of vascular plant species evaluation relate to environmental condition and morphometrical parameters of individual isolated forest fragments. Studied isolated ...
Verification of the possibility of utilization of rockbolt technology in the Nováky colliery conditions
Koníček, Petr; Souček, Kamil; Šňupárek, Richard; Hrabovský, J.
2010 - Czech
Deformation of longwall gates are significant mining complication in conditions of mining of thickness brown coal seams. Difficult mining conditions are coped with standard way – reduced steel arch support spacing, wood polygon supports and timber poles etc. Presented contribution introduces the first step to application bolt technology for strengthening of current longwall gate support. In roadway No. 111 114-05 was installed dozen set of glass fibre reinforce plastic grouted rockbolts K60-25 by polyester resin Lokset in conditions of Nováky Colliery. Afterwards it was carried out pull tests of rockbolts, their assessment and it was defined recommendation for rockbolts using in conditions of Nováky Colliery Stabilita porubních chodeb v podmínkách hornonitrianských uhelných dolů je stále v centru pozornosti odborné hornické veřejnosti. Dosavadní poznatky a zkušenosti potvrdily, že ani podpěrné výztuže s vysokou únosností nezabrání v podmínkách tercierního souvrství výrazným deformacím, které souvisejí s mechanismem přetváření hornin v okolí chodby. Je proto nutné hledat další možné postupy zesilování podpěrné ocelové výztuže chodeb. Jednou z možností je využití kotevní výztuže, která by byla schopna zpevnit horniny v okolí důlního díla, případně přenést část zatížení podpěrné výztuže dále do masivu.
Keywords:
Rock bolts; rock bolt testing; rock mass reinforcing
Available at various institutes of the ASCR
Verification of the possibility of utilization of rockbolt technology in the Nováky colliery conditions
Deformation of longwall gates are significant mining complication in conditions of mining of thickness brown coal seams. Difficult mining conditions are coped with standard way – reduced steel arch ...
Stress - one of the most important mining influenced factors
Waclawik, P.; Ptáček, Jiří
2010 - Czech
Stress is one of the basic factors affecting rock massif behaviour by decisive way. Knowledge of stress fields facilitates projection and successful realization of workings (e.g. stability check of workings, behaviour of proposed supports, spatiotemporal situation of workings). Within the scope of sedimentary deposit of Karvina subbasin were used data from structure-tectonic analysis and from measures in situ by overcoring and hydrofrac methods for determination of natural stress state and its orientation. This report deals with contemporary recognition of stress fields in the eastern part of Karvina subbasin. There are also disscussed problems of long working line depending on orientation and size of horizontal stress in this report. Last but not least there is described new knowledge about geological-tectonic structure of Karvina subbasin. Napěťová pole výrazně ovlivňují chování horského masívu a působí tak významně na důlní díla v něm realizovaná. Důlní díla jsou ovlivňována jednak napětími přirozenými, která jsou dána zejména strukturní a geologickou stavbou horninového masívu, distribucí trhlin, puklin a dalších diskontinuit a napětími indukovanými hornickou činnosti. Zatímco indukovaná napětí můžeme ovlivňovat (např. vhodným časoprostorovým vedením důlních děl), primární napěťová pole jsou antropogenní činností neovlivnitelná. Vzhledem k výrazné anizotropii napěťových polí v horninovém prostředí sedimentárního ložiska hornoslezské pánve však můžeme, např. vhodnou orientací důlních děl, významně ovlivnit působení horizontální složky napětí na důlní dílo, potažmo na jeho výztuž.
Keywords:
stress; mining works; Karvina subbasin
Available at various institutes of the ASCR
Stress - one of the most important mining influenced factors
Stress is one of the basic factors affecting rock massif behaviour by decisive way. Knowledge of stress fields facilitates projection and successful realization of workings (e.g. stability check of ...
Environmental geomorphology and evaluation of geomorphologic localities – case study in the western part of the Podyjí National Park
Kirchner, Karel; Kubalíková, L.
2010 - Czech
Contribution deals with a selected problems of environmental geomorphology (definition, position within the framework of geomorphology) and geomorphologic inventory. Geomorphologic inventory and subsequent evaluation as geomorphologic localities (or larger territories) – so-called concept geomorphosites is one of possibilities of evaluation of geomorphologic resources. This concept was used for evaluating of selected geomorphologic localities in the western part of Podyjí National Park. Contribution deals with a selected problems of environmental geomorphology (definition, position within the framework of geomorphology) and geomorphologic inventory. Geomorphologic inventory and subsequent evaluation as geomorphologic localities (or larger territories) – so-called concept geomorphosites is one of possibilities of evaluation of geomorphologic resources. This concept was used for evaluating of selected geomorphologic localities in the western part of Podyjí National Park.
Keywords:
environmental geomorphology; geomorphosites; Podyjí National Park
Available at various institutes of the ASCR
Environmental geomorphology and evaluation of geomorphologic localities – case study in the western part of the Podyjí National Park
Contribution deals with a selected problems of environmental geomorphology (definition, position within the framework of geomorphology) and geomorphologic inventory. Geomorphologic inventory and ...
Postindustrial landscape – geographical look at the revival of traditional phenomenon of Czech lands
Kolejka, Jaromír; Kirchner, Karel
2010 - Czech
The paper deals with postindustrial landscapes in the general level and in concrete territory. The inventory, classification and typology of such landscape on the territory of the Czech Republic are among other research tasks. The detail research is focused on the selected representative areas of the postindustrial landscape. The postindustrial landscape of Rosicko-Oslavansko (the former iron and coal industry area 20 km west of Brno) was subdued to the goal specific land use mapping and the contributions of the pre-industrial and the industrial periods to the present land use were inventoried. The paper deals with postindustrial landscapes in the general level and in concrete territory. The inventory, classification and typology of such landscape on the territory of the Czech Republic are among other research tasks. The detail research is focused on the selected representative areas of the postindustrial landscape. The postindustrial landscape of Rosicko-Oslavansko (the former iron and coal industry area 20 km west of Brno) was subdued to the goal specific land use mapping and the contributions of the pre-industrial and the industrial periods to the present land use were inventoried.
Keywords:
postindustrial landscape; landscape classification and typology; Rosice-Oslavany
Available at various institutes of the ASCR
Postindustrial landscape – geographical look at the revival of traditional phenomenon of Czech lands
The paper deals with postindustrial landscapes in the general level and in concrete territory. The inventory, classification and typology of such landscape on the territory of the Czech Republic are ...
Study of the surface topography created by pulsating water jet
Klich, Jiří
2010 - Czech
The paper has followed to study of the surface topography created by the pulsating water jet. It presents a way to evaluate the surface topography created by the unconventional method. Based on data analysis and subsequent interpretation is described the surface generated pulsating water jet. Knowledge of this description is very important for dimensioning the optimum technological factors pulsating water jet in relation to the workpiece material and the required quality of the finished surface.
Keywords:
pulsating water jet; surface topography
Available at various institutes of the ASCR
Study of the surface topography created by pulsating water jet
The paper has followed to study of the surface topography created by the pulsating water jet. It presents a way to evaluate the surface topography created by the unconventional method. Based on ...
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