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The current problem of the last decade in the world is the increase of oil production volume due to the extraction of its hard-to-recover reserves. The difficulty of its extraction is determined not only by the petro-physical characteristics of the oil-bearing formation, but also by the physico-chemical properties of the fluid itself. However, not all methods of enhancing oil recovery are ecologically safe. The most effective and ecologically-friendly method of soil purification from pollution by oil products is t...

The analysis of environmental and economic effectiveness of the environmental management by cost indicators is important in the environmental policy of the enterprise. Volumes of environmental financing, indexing of environmental payments, formation and use of funds, the establishment of environmental insurance rates depend on the understanding of the category «ecological and economic efficiency». Studies have shown that the existing environmental cost-benefit analysis techniques in the evaluation of their effecti...

The contribution deals with pipe conveyors, which currently provide great environmental and economic benefits. Construction of the pipe conveyor is developed from standard belt conveyors with one major distinction, which is forming of the conveyor belt into the pipe. Wrapping the belt into the pipe form prevent leakage of material under the conveyor path and contamination of the surroundings. Among the main advantages belongs, in addition to the environmental impact, the option to transport material in both belt s...

This paper describes possibilities to use numerical models as significant aid in proposal of slope stabilization in Quarry. More accurately the proposal for excavation way of first soil overburden cut, which is mixed up with rock mass, to stabilize the slope. That is real case study which was performed for greywacke quarry situated in Eastern Bohemia. Since 2005 a small instability symptoms are observed on eastern general slope of quarry. Based on this fact the slope stability investigation started in detail one y...

In connection with the requirements of energy saving and reducing greenhouse gas emissions, the current construction is characterized by high levels of airtightness of the building envelope. On the other hand, high levels of airtightness can be the cause of poor indoor air quality due to inadequate ventilation. Energy savings and ensuring the quality of the indoor environment are two confronting requirements of the current construction. The airtightness can be defined as a resistance of the construction to infiltr...

Transport means play an important role in extraction and processing of raw materials. Their use is economically connected with several cost items that significantly affect whole process efficiency. Generally costs associated with mining road haulage can be divided into two major categories of the variable and fixed costs. From above mentioned dividing is necessary to pay particular attention to variable costs, which are influenced by the size of individual transport activities. Among the most important items inclu...

Transport systems are an important component of intra-plant logistics. Their role is the provision of transport services in order to ensure the efficient functioning of the individual processes. The quality and reliability of the transport system greatly affects the efficiency of intra-plant logistics. The extractive and mining industries are particularly sensitive to these indicators and parameters of transport technologies. The use of transport technology in this industry is dependent on a number of factors. The...