Full-Scale-Model Tests of Reinforced Structural Elements

For effective application of the method of analogy in the geometrization and prediction of indicators, it is necessary to observe the principle of similarity of the field being studied to the field-analog developed by the development. Under the conditions of similarity, it can be assumed that the nature and intensity of deformation of rocks in the conduct of mining operations will be about the same. When choosing a mine-analogue should be based on the coincidence of the degree of metamorphism of coal and rock epigenesis, tectonic structure of the sites, the lithological and material composition of rocks and their physical and mechanical properties, power and depth of the coal seam, hydrogeological conditions. Homogeneous areas of the deposit can be distinguished by various methods of cluster analysis. The quality of the classification is assessed by comparing the average values of indicators in individual clusters (homogeneous areas) with their average values throughout the place.

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Estimation of the Error in the Calculation of Mineral Reserves Taking into Account the Heterogeneity of the Geological Space

Shurygin

Vlasenko

Shutkova

2019

IOP Conf. Ser.: Earth Environ. Sci.

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An Establishment of Dependencies of Mutual Influence of Geological and Mining Factors on the Stress-Strain State of the Rock Mass

Shurygin

Vlasenko

Turbor

2019

IOP Conf. Ser.: Earth Environ. Sci.

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The production activity of the coal mining industry is accompanied by the involvement in the development of deposits, which are characterized by a complication of mining and geological conditions at a depth of 1500 m. The increase in mountain pressure at great depths leads to a decrease in the efficiency of the use of complex mechanized technologies of coal mining. This is due to the imperfection of the technologies of fastening and control of mountain pressure. The existing schemes of movement of mechanized supports were developed for use at depths up to 800 m and do not take into account the features of geomechanical processes in the rock mass at depths of more than 800 m. In addition, the known technologies of fastening and management of the roof do not provide the necessary speed of fastening of the treatment face at high speeds of moving longwalls, thereby causing the formation of large undefended areas of the direct roof and increasing the probability of dumping in the bottom-hole space of longwall.

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Increase of Efficiency of Extinguishing of Rock Dumps on the Surface of Coal Mines

Versilov

Vil’bitskaya

Kurdashov

2019

IOP Conf. Ser.: Earth Environ. Sci.

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The most effective technical solutions have been those that provide for the supply of substances used for extinguishing to the combustion zone of the rock dump. When quenching rock on the rock dump is proposed injection (blowing) in a dry extinguishing agent, represented by crushed vermiculite (hereinafter referred to as the extinguishing agent), in pure form or in a mixture with alkaline substances. The problem of developing methods of extinguishing rock dumps, characterized by low cost and high efficiency, in the absence of additional environmental pollution is very relevant. The technology of suppression of waste rock dumps include the injection of suspended particles of vermiculite in contrast to the clay slurry or solution (suspension) of antipyrene. This allows to penetrate into the surface layer of the middle and upper part of the blade and insulate its lower part with non-combustible material.

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Full-Scale-Model Tests of Reinforced Structural Elements

Cited by 3 publications

References 10 publications

Estimation of the Error in the Calculation of Mineral Reserves Taking into Account the Heterogeneity of the Geological Space

Estimation of the Error in the Calculation of Mineral Reserves Taking into Account the Heterogeneity of the Geological Space

An Establishment of Dependencies of Mutual Influence of Geological and Mining Factors on the Stress-Strain State of the Rock Mass

Increase of Efficiency of Extinguishing of Rock Dumps on the Surface of Coal Mines

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