scholarly journals Permeability of Coking Coals and Patterns of Its Change in Leninsky Area, Kuznetsk Coal Basin, Russia

2021 ◽  
Vol 11 (9) ◽  
pp. 3969
Author(s):  
Tatiana Shilova ◽  
Sergey Serdyukov

A prediction of the permeability of gas-bearing coking coals in the Leninsky area, Kuznetsk coal basin (Kuzbass), which is promising for the production of coal methane, was performed. The results of laboratory studies of coal permeability and cleat compressibility under hydrostatic stress conditions are presented. As the confining pressure increased by 8 times (from 1 MPa to 8 MPa), the coal permeability perpendicular to the butt cleat direction decreased by 6.7 times (from 60 mD to 9 mD). The coal cleat compressibility was 0.085 MPa−1. On the basis of the results of filtration tests and microstructural analysis of the coking coals, we provide the estimation of the permeability anisotropy along the bedding planes (perpendicular to the face and butt cleat directions). The predicted dependences of gas-bearing coking coal permeability perpendicular to the butt and face cleat directions on depth and on features of coal seam bedding were determined under uniaxial strain conditions. It was found that in the coking coal depth intervals, as the depth increased, their permeability decreased by 61–82%. The obtained results can be used to select facilities and to design industrial works for the extraction of coal methane in the region.

Author(s):  
Надежда Егорова ◽  
Nadezhda Egorova ◽  
Юрий Удодов ◽  
Yurii Udodov

<p>The article describes the main stages of development of geographical knowledge about nature, economy and population in theKemerovoregion. The stage of initial accumulation of geographical knowledge and the development of the mineral riches of the plains and mountain areas of the region was defined. The article features the contribution of the explorers to the study of the physiographic features of the Kuznetsk region, the contribution of scientific research in academic and interdisciplinary expeditions to expand the knowledge about the territory. It defines the role of geologists in the discovery, exploration and in the study of the region and the Kuznetsk coal basin. The author has selected special Lutugin and Soviet stages in the development of geological knowledge, including that about the Kuznetsk coal basin (Kuzbass). The article specifies the contribution of scientists to the study of the relief, climate and inland waters, including the contribution of botanists, zoologists, soil scientists of theTomskandNovosibirskuniversities in the study of soil-vegetation cover of theKemerovoregion. The emphasis is on physical-geographical and economic-geographical research, the role of the Department of geography, Geology and geography teaching methodology in these studies. In conclusion, a retrospective of the main stages of geographical research of the territory of theKemerovoregion and their event content was constructed.</p>


Author(s):  
Юрий Удодов ◽  
Yurii Udodov ◽  
Надежда Егорова ◽  
Nadezhda Egorova ◽  
Г. Багмет ◽  
...  

<p>The article deals with the geological structure, geomorphic features and mineral resources ofKemerovoregion. It describes stratified formation of late Precambrian (Riphean and Vendian), Paleozoic, Mesozoic and Cenozoic eras. The article considers four main tectono-magmatic stages of geological development of the area (posteritas-early Ordovician, Ordovician-Silurian, Devonian-late Permian and late Permian-Mesozoic). It enumerates the characteristics of the major tectonic elements of the Kuznetsk Alatau and Mountain Shoria, Salair and Tom ' -Kolyvan areas of the Kuznetsk coal basin. It lists deposits of iron, manganese, polymetallic lead-zinc and copper ore, aluminum raw materials. One of the oldest and valuable minerals of the region is gold. The coalbearing formations of the Kuznetsk coal basin described in the article are the largest of all the exploited coal basins of the world, in terms of reserves and quality of coal. The article lists non-metallic minerals, and the geography of their fields. It describes the main morphostructural elements: the Salair ridge, Alatau-Shor highlands, Tom ' -Kolyvan hill, the Kuznetsk basin and theChulymvalley.</p>


Author(s):  
O.I. Litvin ◽  
Ya.O. Litvin ◽  
M.A. Tyulenev ◽  
S.O. Markov

The backhoe hydraulic shovels (backhoes) have been widely used in open-pit mining operations in the Kuznetsk coal basin since the early 2000s. Now their number is growing every year, both because new operations begin on new sites, and because of the backhoe advantages. However, up to now parameters of their operation, more particularly the parameters of the face blocks, are often taken according to the actual data, i.e. based on the accumulated experience of the mining companies, and are not calculated using the approved scientifically validated methods. In the given article the authors give some preconditions for creation of a uniform methodology to calculate parameters of the face blocks depending on mining-geological and miningtechnical conditions. It is noted that the manufacturers of excavation equipment quote the data corresponding to the maximum possible parameters of the equipment operation, in particular the height of the excavated layer, as a result of which it is rather difficult to apply this in practice. Preliminary conclusions about the need to take into account the diversity of the above conditions and their interrelation with the parameters of a particular model of the excavation and loading equipment have been made.


2018 ◽  
Vol 26 (3) ◽  
pp. 221-239
Author(s):  
Z. R. ISMAGILOV ◽  
N. V. ZHURAVLEVA ◽  
M. A. KERZHENTSEV ◽  
S. A. YASHNIK ◽  
E. V. MATUS ◽  
...  

2014 ◽  
Vol 55 (9) ◽  
pp. 1043-1064 ◽  
Author(s):  
E.V. Sokol ◽  
S.A. Novikova ◽  
D.V. Alekseev ◽  
A.V. Travin

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