The article presents the estimates of work environment at ore underground mines and open pits as a result of long-term hygienic studies. The estimates are given of unfavorable production factors, and categories of work environment for main mining jobs are described. It is proved that in underground mining processes 82.3 per cent of work places belong to the 3rd category in terms of health hazard. In open pits this category accounts for 56.2 per cent of work places. Mine personnel occupation morbidity trends in 2006–2015 are described.
A number of countries have discovered and are developing oil and gas reserves. Policy makers in such countries are anxious to obtain the greatest benefits for their economy from the extraction of these exhaustible resources by designing appropriate policies to achieve desired goals. One important theme of such policies is so called local content created by the sector-the extent to which the output of the extractive industry sector generates further benefits to the economy beyond the direct contribution of its value-added, through its links to other sectors.
Main methodological principles of the integrated geoinformation base formation for the prediction and estimation of coal deposit reserves
The author presents the structure of the integrated geoinformation base for the prediction and estimation of coal deposit reserves, and description of the main principles of its formation. It is proved that the geoinformation system is helpful for the development of qualitatively new models within the framework of mining and geological information systems (MGIS) and it also provides an opportunity of the objective transition to the computer-aided design of mining systems.
The article describes the technology of reservoir local casing in well drilling at fields of Eastern Siberia. The authors analyze the shortcomings of the conventional technology of reservoir confinement with protective strings and productive casing. The advantages of the method of local casing without cementing, and well smaller diameter are described.
Algorithm of the location selection for elements of wireless control systems for underground mining machinery electrical engineering complexes
The enhancement of the performance efficiency of wireless communication and control systems for underground mining machinery electrical engineering complexes is rather important today and will be of no less importance in the nearest future, because the necessity of manless mineral mining and higher safety-in-mines is ever growing. For this purpose an algorithm is proposed for the perfection of the available wireless control systems of mining machinery operating in mine underground workings.
Justification of the direction of mining front development based on the patterns of the man-made coal resource formation
The article presents the analysis and generalization of geological conditions of brown coal deposits in the Kansk-Achinsk Basin. Patterns of the man-made coal resource formation along the strike and down the dip of the coal seam within the boundaries of the Borodinsky opencast mine were identified based on the results of the analysis of the mathematical model. A system approach was used for the justification of the direction of mining front development, plan of the deposit development, with due account for the patterns of excess mined-out area distribution in the dumping zone of the opencast mine.