National Repository of Grey Literature 127 records found  beginprevious118 - 127  jump to record: Search took 0.00 seconds. 
Prostorová data v hornictví a geologii
Kajzar, Vlastimil
This manuscript deals with methods used in modern technics and software tools in the field of geoinformatics for obtaining, processing and presentation of spatial data in mining and geology.
Stability conditions of Jezeří Hill in the present period of open - pit coal mining under Krušné hory Mts
Košťák, Blahoslav ; Kudrna, Z. ; Vilímek, V.
Monitoring in the stability pillar of Jezeří Hill in the open pit mine ČSA provides data for the prognosis of further development of deformation.
The using of longperiod levelling measurement on surface of the underground exploited uranium deposit for mathematical modelling and prognosis of surface grount subsidence
Hortvík, Karel
In connection with long-term surveying observations a newly conceived mechanism of genesis of subsidence depression above uranium deposit of Rozna has been described. Based on it a geomechanical model of deposit situation is elaborated which then enables by means of mathematical modelling of surface subsidence development to predict development of subsidence depression both in stage of deposit mining and in period after termination of mining work. The research according to expectation shall contribute generally to deeper conceiving of methodology of evaluation of earth surface movements after termination of mining for ore vein deposits exploited by underground method at similar conditions.
Use of GRP anchors in underground construction
Šňupárek, Richard ; Janíček, D.
Paper contains experience with construction, properties and applications of bolts and anchors made from synthetic materials used in mining and underground engineering.
State of the Art and Conception of research in the Fields of Mining and Mineral Resources in the Institute of Geonics ASCR
Šňupárek, Richard
Institute of Geonics deals not only with mining, but more widely with different processes in the Earth crust including their environmental aspects. The paper contains the actual state of the art and a conception of the research in the sphere of mining and material resources and its place in the set of Earth sciences.
Economic aspects of reclamation of brown coal quarry near the town Most
Štemberová, Daniela ; Dvořák, Antonín (advisor) ; Hadrabová, Alena (referee)
The master thesis deals with reclamation of brown coal quarries from different perspectives. It focuses on the various options of reclamation of quarries. It evaluates the economic benefits and costs, integration into the way of rehabilitation needs and the future use of this reclamation. It defines a way how to optimise the use of devastated land. This thesis is focused on the reclamation of region Most specifically on the brown coal quarry called Ležáky - Most. It considers if hydrologic variant of reclamation for the quarry is the best. It describes other possibilities of reclamation that have been considered. The master thesis introduces the reasons for the selection of the hydrologic reclamation. It reviews the complexity of the hydrologic reclamation of the quarry Ležáky -- Most, its effect on the environment, social sphere and the further societal use. The main objective is to analyze the total effectiveness of quarry Ležáky - Most, if the mining was profitable taking into account all its costs and revenues.
Těžba polymetalických konkrecí z hlubokomořského dna jako alternativa ke kontinentálním zdrojům nerostných surovin
Linhartová, Ivana ; Dvořák, Antonín (advisor) ; Hadrabová, Alena (referee)
Práce se zabývá problematikou těžby polymetalických konkrecí z hlubokomořského dna, která se dnes jeví jako alternativa ke kontinentálním zdrojům nerostných surovin. V současné době se zásoby využívaných kontinentálních zdrojů nerostných surovin velmi rychle blíží k úplnému vyčerpání, cena surovin na světových burzách rychle roste, a to je velkou zátěží hlavně pro státy, které určité typy nerostných surovin na svém území vůbec netěží a musí je dovážet, což je právě případ ČR. Práce se zaměřuje hlavně na analýzu těžby vybraných rud a to jak ke vztahu k ČR, tak i ve vztahu ke zbytku světa. Dále se snaží nahlédnout do pozadí problematiky samotné těžby hlubokomořských konkrecí, která i přes její současnou aktuálonost není obecně příliš rozšířená. Poslední část práce analyzuje "pro" a "proti" zahájení těžby z oceánského dna.

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