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The full impact of coyote blasting on the environment includes ground vibrations, air blast, fly rock and dust, and these are unavoidable in quarry operations if they are not controlled. The detonation of explosives for rock breakage induces a seismic disturbance that propagates in all directions from the explosion epicentre. In addition to the seismic disturbance, the detonation of explosives causes a transient pressure pulse that is propagated through the atmosphere. This phenomenon has been described in the lit...

Coal, Oil and Natural gas account for 30\%, 31\% and 2\% respectively of the world’s total energy. In India, coal based energy is the main source of energy and its energy demand is increasing at the rate of 9\% per year. The supply on the other hand is lagging behind. If this trend continuous, it is estimated that by the year 2022, India would be required to spend Rs. 860 billion per year to meet its energy demand. World attention has recently started shifting towards methane, which can be exploited from the coa...

With the approaching accession to the European Union in 2004, the Czech Republic has been working intensively not only on streamlining legislative issues, but in particular on the unification of various processes in the economic and industrial spheres. Ecology and the environment have, over the past few years, become one of the Government’s policy priorities. The result is a clear concept and future of Czech open cast coal mines. These are divided into three separate companies from the point of view of their siz...

Quality of living environment connects with filling of the hygienically, protection and other norms, that are linking to the living environment. In magnesite firm due to the production process there is negative influencing of the whole ecosystem. Magnesite firm, that will be analysed in presented paper, is polluting living environment with various way and various intensity. In presented paper we will deal with influence of magnesite firm in area of polluting of water and soil. Analysed firm is working in area of m...

Blasting is not just an “empirical” relation between man (e.g., the blaster) and rock. This particular point of view has been proved to be correct and self-evident, mainly in major Public Works and Construction blasting, where the main part of the site activity often regards rock excavation within urban or sensitive areas. Such a risky and demanding operation should not be “left” only at blasters’ decision and experience. Blasting is considered to embody further scientific knowledge, know-how and technol...

Contemporary approach for mining investments has a strong support in initial investment documentation, which consist of expert studies, pre-feasibility, and feasibility studies. Based on the author’s personal experiences, this paper points to the mean of evaluation of investments in a starting phase, where actual examples of expert and feasibility studies have been applied.

In the present paper a grouting technique was studied in order to protect the buried monuments against the presence of the ground water. Krisis Macedonian Tombs in N. Greece was used as a pilot example for study, given that it is buried in loose sediments where the aquifer overflows their floors. Although the proposed method is expensive, it establishes permanent drainage conditions regarding to pumping. The purpose of this method is to create an impervious shell, which isolates the floor and the walls of the tomb...

In the presented article I deal with one part of the financial managing - capital decision in the conditions of the chosen firm. I will analyse and calculate effectiveness of the developing and most sophisticated capital activity of the firm, which should bring long-term effects, as well as to satisfy proportional development of the firm and to provide stable position on the market.

Coal Mining is one of the oldest industry in India. Coal is the predominant source of primary energy in India. About 63 per cent of the total demand for commercial fuel is currently met by coal and this feature is expected to persist well into the future The demand-supply imbalance in the Indian coal industry is a crucial issue, one that will determine the course of future business strategies charted by this sector. Rapid growth of India’s infrastructure sector will lead to a quantum leap in total demand for ene...

This paper illustrates, by means of the case study of the most important lignite deposit in Northern Greece, the lignite recovery in multi-seam or “zebra” type lignite deposits. It discusses the difficulties encountered in most efficiently producing lignite from this type of sequence, characterized by the multiple interchanges of lignite layers and thin sterile intercalations consisting mainly of clays, marls and sands. The knowledge of the geometry and the quality characteristics of the recoverable lignite ar...

The economic interests of every company, performing prospecting and exploration for mineral resources require conformity with the contemporary market reality. Key element of that is the application of new technologies and methods, which lead to optimal results, while reducing the amount of some expensive and labor-consuming geological exploration works, without damaging the structure of the normative required information in the final documents for proving a commercial discovery (deposit). At the stages of prospect...

This paper provides an overview of the various issues influencing ore dilution in an underground mining. The paper reviews the dilution problem throughout the entire mining process, and provides a rational approach to underground mine design in order to minimize dilution. The stages contributing to dilution include orebody delineation, design and sequencing, stope development, drilling and blasting, and production stages. Vibrations generated by the drillingblasting operations during the ore production could accel...

One of the main subjects of the contemporary project or production/operations management is to make decision. In order to be successful, managers should use modern planning methods. Application of an accepted investment project is as important as its design. As the sources are limited eventually the accepted project which is designed with spending great sources and effort should be completed on time, it is necessary to use them efficiently and cleverly. One of the distinguishing features of contemporary project ma...

The environmental problems arisen from ground vibration and air blast have been faced and discussed frequently in various industries such as mining, construction, quarry etc. where blasting operations are unavoidable. So the ground vibration effects induced by blasting on structures and human beings need to be predicted, monitored, and controlled. With the increase of the environmental constraints on the levels of disturbance induced by blasting operations nearby residents, there is also an increasing necessity to...

In recent years, use of paste backfill has evolved from an experimental backfill method with limited application to a technically viable and economically attractive alternative. This is primarily due to the development of dewatering and transportation systems that allow for controlled and consistent production and delivery of paste in a cost-effective manner. In addition, it has been recognized that underground backfill provides for a mechanism to safely dispose of mine wastes such as tailings, which results in co...