scholarly journals NEW POSSIBILITIES OF CALCULATING THE VOLUMES OF EXTRACTED MASSES IN THE SURFACE MINING OF BROWN COAL

2017 ◽  
Vol 63 (3) ◽  
pp. 8-17
Author(s):  
Dana Vrublová ◽  
Roman Kapica ◽  
Beáta Gibesová ◽  
Jaroslav Mudruňka

Abstract The companies engaged in brown coal mining are looking for ways of managing the mining process as efficiently as possible. The principal mining technology used for brown coal mining in our country, but also in Germany and Poland, are wheel excavators. The evolving GNSS technology has enabled designing and realisation of systems for determining the spatial position of the excavator wheel. The visualisation of the wheel's spatial position and tracking of its real-time motion is performed in the Czech Republic by the program Mine Model developed by the company KVASoftware. One of the most important tasks of mine surveyors is the calculation of the volumes of the extracted masses. The described system performs this task in real-time. This article describes an application that is used to automate volume calculations.

2020 ◽  
Author(s):  
Filip Černoch ◽  
Lukáš Lehotský ◽  
Petr Ocelík ◽  
Jan Osička

This book summarizes a three-year research project on local opposition to coal mining in the Northwestern part of the Czech Republic. The research focused on the relational dimensions of the opposition movement and the political context in which the movement operates.


2019 ◽  
Vol 54 ◽  
pp. 140-149 ◽  
Author(s):  
Filip Černoch ◽  
Lukáš Lehotský ◽  
Petr Ocelík ◽  
Jan Osička ◽  
Žaneta Vencourová

2021 ◽  
Author(s):  
Filip Černoch ◽  
Lukáš Lehotský ◽  
Petr Ocelík ◽  
Jan Osička

This book summarizes a three-year research project on local opposition to coal mining in the Northwestern part of the Czech Republic. The research focused on the relational dimensions of the opposition movement and the political context in which the movement operates.


Geografie ◽  
2002 ◽  
Vol 107 (3) ◽  
pp. 230-242
Author(s):  
Martin Brzóska ◽  
Alena Chvátalová ◽  
Karel Kunc

The report deals with the reclamation and revitalization carried out in the brown-coal field area in the are Mountains foothills with extensive open coal mining. Three basic modes of reclamation (agricultural, forest, and hydro) are mentioned. Considering the environmental, technical, and financial perspectives, the decision to flood residual pit mines is assessed as the most convenient alternative. Utilization of new ponds will be multifunctional. There are nevertheless many risks relating to this project, unique in the Czech Republic. They are concretised in the example of the Chabařovice residual pit mine, which is already being flooded.


2012 ◽  
Vol 58 (3) ◽  
pp. 13-22 ◽  
Author(s):  
Lukáš Snopek ◽  
Alois Adamus

Abstract One of the most serious risks associated with mining using mainly underground methods is the risk of mine fires. Causes of these fires can be exogenous (external) or endogenous (internal). The authors of the article pay attention to endogenous fires in coal mines, especially to the timely indication of them. As already mentioned in many contributions, spontaneous combustion is a complicated process that passes, in the final stage, into a mine open fire. The localization of a place of such danger can be done by means of so-called indicator gases that are desorbed from the coal substance at a point of the originating seat of spontaneous combustion. The article deals with a development trend in the use of indicator gases for spontaneous combustion in coal mining. The objective of the authors was to arrange chronically and briefly knowledge of the use of indicator gases both abroad and in the Czech Republic and to provide input information about a research project being dealt with at present


Author(s):  
Tadeusz Chrzan ◽  
Henryk Greinert

In the paper the influence of surface mining on the environment is presented. The sizes of mining areas and depression funnels has been shown. Also are presented the amount of cover materials and the quantity of water pumped out from the mines in five regions of brown coal mining in Poland.Various conceptions of land reclamation are discussed, from the method of pioneer vegetation in the years of 1950 - 1970, trough selective excavation of the humus soil in the years 1970 - 1980, to conception of the direct introduction of the final type of vegetation.In the lost part of the paper three models of agricultural land remediation are discussed, as well as the yields of the cultivated plants on recultivated former mining areas.


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