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The base of the Northern Bohemian region is made up of the kratogen (old block) of the ?Bohemian Massif? that belongs to the so-called Hercynian (Variscan) province. Its development was tectonically terminated by hercynian orogenesis, which means by orogeny in the Palaeozoic Era (Carbon). Such regions are not very promising for the occurrence of geothermal energy, unlike geologically younger areas. But the heat flow is significant in some parts and consequently the area is called the ?Czech geothermal heat flow an...

Hydrological reclamations are one way of eliminating consequences of surface mining of coal. The residual quarries occupy extensive areas and the most effective way how to integrate them into the surrounding landscape is their flooding. This will create a new water area that can be used recreationally and could also serve as a habitat or a migration point for different plant and animal species. The contribution is focused on northern part of the Czech Republic (The Most Basin) where brown coal has been mined for n...

In the era of dynamically changing business environment, planning in an enterprise is a part of decision making process. Therefore, a good prepared action plan is necessary. The rationality of decisions included in the plan depends on the quantity and quality of information available to the decision maker. Enterprises, including coal mines, are a set of interdependent phenomena. For that, we need to create decision support tools, the results of which will be visible in the future. Common tools include methods base...

This paper discusses the causes of surface deformation as a consequence of mining activities. Surface deformation associated with underground coal mining, named subsidence, is a gradual settling of the earth?s surface. Subsidence effects can result from all mining methods, but especially coal mining. Some of the primary effects of surface subsidence include damages of infrastructure (buildings and roads). The most vulnerable areas for deformation are those where underground mine working are closed to the ground su...

Fuel and energy management and related energy security are key issues for every country. The selection of energy sources used by individual countries depends on the possessed resources of energy raw materials, the economic position and, to an increasing extent, the approach to environmental protection. These factors shape the so-called energy policy of a given country. In the case of Poland, this policy is based on conventional energy sources. The main energy resource of the country is hard coal, the extraction of...

Facilities and technical systems used in coal mines have limited durability. This is the result of very difficult conditions in which they are used. In particular it applies to environmental conditions and not entirely predictable load states of these facilities. Mining machines and devices are also exposed to various types of hazards, which in many cases significantly reduce their durability. For this reason, it is very important to properly use them and supervise and monitor their work. In this respect, huge res...

The land subsidence caused by underground mining results in the transformation of water relations in the catchment. The purpose of the research is to determine the impact of the subsidence basin on changes in the water cycle. Detailed research was carried out in the city of Bytom, in the Karb district where one of the most spectacular subsidence basins on the Silesian Upland (southern Poland) emerged. As part of the study, the geological structure of the area was examined and a detailed geomorphological and hydrol...

An important problem of modern civilization is the aging of societies. The effect of this phenomenon is and will be limited access of enterprises to young and middle-aged employees. This problem also applies to coal mine. First and foremost, young and middle-aged employees work in them. Therefore it will be necessary to undertake actions aimed at stopping already working workers and employing older people in the case of shortages. Extending the employment time in mining enterprises requires a proper approach to th...

Open cast coal mining is inevitably accompanied by a significant technological interference in the environment. This requires the due (during the technological process) restoration of the disrupted balance and the forming of a new environment consistent with the ecological requirements. Environment protection is one of the priority tasks for Mini Maritsa Iztok EAD. The environment protection legislation in force is strictly observed at the Company. The use of water to support mining operations, and waste water rep...