{"title":"THE INFLUENCE OF WETTING OF SUBSIDING SOILS TO THE BEARING CAPACITY OF FOUNDATIONS DURING THE TAILING DUMP HEIGHTENING AT THE KATOKA MINING COMPANY","authors":"L.A. ELANTSEVA, S.V. FOMENKO, A.YU. AFANASIEV","doi":"10.46689/2218-5194-2023-2-1-157-164","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-2-1-157-164","url":null,"abstract":"It was revealed that light loams of Kalahari group have subsidence properties on the territory at the concentrating mill. A numerical filtration model has been developed to predict the hydrodynamic regime of groundwater under the conditions of tailing dump exploitation during its heightening. An increase of groundwater levels at the area of the pumping station has been established when the flow is backed up by technical waters of the tailing dump during its filling. The calculation of compressible strata depth under buildings was carried out. The calculation of soil subsidence value at the base of pumping station foundations was carried out under the conditions of soil moisture increasing due to its wetting from below during groundwater rising. Reduction to acceptable values of foundations subsidence is provided by measures connected with lowering the groundwater level.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135311754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DEFELOPMENT OF THE OVERALL RISK ASSESSMENT METHODOLOGY FOR A HAZARDS COMPLEX OF UNDERGROUND MINING ENTERPRISES","authors":"G. Feinburg, Ekaterina Rosenfeld","doi":"10.46689/2218-5194-2023-1-1-108-125","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-108-125","url":null,"abstract":"The article details and evidentially substantiates the methodology and procedures for comprehensive analysis, assessment and assessment of the risk of individual and collectively acting hazards in mining operations at underground mining enterprises. The main focus is on occupational risks and verbal-point description of them. The connection of the proposed methodology and the methods created on its basis with the known procedures of matrix, matrix-point and calculation-point risk assessment is shown. The uniformity of the proposed procedures makes it possible to flexibly apply this methodology to the riskometry of not only single, but also overall risks of various complexes of hazardous factors of mining production.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70574846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TECHNOLOGY OF SELECTIVE EXCAVATION OF LO W-PO WER COAL SEAMS OF COMPLEX STRUCTURE HYDRAULIC EXCAVATORS","authors":"N. Kachurin, E. Kurekhin, V. Melnik","doi":"10.46689/2218-5194-2023-1-1-224-238","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-224-238","url":null,"abstract":"A method for determining the height of the worked layer by a hydraulic excavator with a reverse shovel when working out low-power coal seams of inclined and steep fall is proposed. Schemes have been developed for mining coal seams of complex structure, which are presented in the form of a synclinal, anticlinal fold, using a hydraulic excavator reverse shovel with separation into layers. The dependence of the height of the worked layer on the angle of incidence and the power of the coal seam is established.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALYSIS OF THE ENERGY CHARACTERISTICS OF THE GRINDING DEPARTMENT OF THE CONCENTRATION FACTORY","authors":"R. Klyuev, I. Bosikov, O. Gavrina, E. Zatsepin","doi":"10.46689/2218-5194-2023-1-1-266-283","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-266-283","url":null,"abstract":"For processing plants of mining and processing plants, an important and urgent issue is a comprehensive analysis of the energy characteristics of the most energy-intensive equipment. Such an analysis is necessary to identify the potential for energy savings and reduce energy costs per product cost. In the presented work, on the basis of data on the power consumption of a large processing plant, an analysis of the energy characteristics of autogenous grinding mills was carried out. Based on the data on the power consumption of the processing plant departments, statistical estimates were obtained: average (estimation of the mathematical expectation); standard (unbiased estimate of standard deviation). The technological process of grinding separation is given, the regime map of the technological process of the self-grinding body is shown. The utilization factors for active power, the forms of the load schedule, the filling of the load schedule are determined. The dynamics of change in the power value during the hours of the evening maximum of the power system over the decades of the month under study is given...","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Kachurin, D. Prokhorov, Dmitry Ambartsumov, Ivan Erogin
{"title":"AEROGASDYNAMICS AND DUST TRANSPORT OF ANTHROPOGENIC MINERAL FORMATIONS","authors":"N. Kachurin, D. Prokhorov, Dmitry Ambartsumov, Ivan Erogin","doi":"10.46689/2218-5194-2023-1-1-531-543","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-531-543","url":null,"abstract":"Of particular interest is the fact that when modeling the convective-turbulent diffusion of dust and gas pollutants, one can use a one-dimensional parabolic type equation, where the convective term will be determined by the wind speed in the surface layer, since the velocity field in the surface layer quickly levels out. The areas of dusty surfaces of a conical AMF do not exceed 60% of its total surface area. When flowing around a spinal-shaped AMT, the air velocity fields can exceed the value of the blow-off velocity of solid particles by almost 30 % of the AMF surface area. At the next stage of research, it is necessary to analyze the simulation results and, on its basis, substantiate technical solutions to ensure the environmental safety of the environment. This will improve the efficiency of technologies to reduce or eliminate the negative impact of AMF on adjacent territories.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70576422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Zhabin, V. Merzlyakov, P. Chebotarev, V. Sarychev
{"title":"CALCULATION OF THE SCREW CONVEYOR OF THE MIXED GROUND SHIELD TUNNEL BORING MACHINES","authors":"A. Zhabin, V. Merzlyakov, P. Chebotarev, V. Sarychev","doi":"10.46689/2218-5194-2023-1-1-211-223","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-211-223","url":null,"abstract":"The issues of calculation of structural and kinematic parameters, as well as power indicators of work in the design of screw conveyors of the mixed ground shield tunnel boring machines","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70574598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SOME TYPOMORPHOUS FEATURES OF NATIVE GOLD OF THE DAGKESAMAN POLYMETALLIC PYRITE DEPOSIT AND THEIR PRACTICAL SIGNIFICANCE","authors":"N. Valiev, G. Huseynov, Z. Efendiyeva","doi":"10.46689/2218-5194-2023-1-1-348-359","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-348-359","url":null,"abstract":"The typomorphic features of native gold are considered, which provide valuable information in the study of the conditions for the formation of ores. When determining the stages and stages of ore deposition at the Dagkesaman deposit, data on the forms of isolation, chemical composition and internal structure of gold particles were used. The established granulometric composition and mineral association of gold are ofpractical importance in the technological processing of ores.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANIONIC-CATIONIC COMPOSITION OF SOIL IN URBANIZED ECOSYSTEMS OF THE TULA REGION","authors":"O. Kristina, A. Vyacheslav, Gorelova Svetlana","doi":"10.46689/2218-5194-2023-1-1-27-37","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-27-37","url":null,"abstract":"In order to assess the state of soils in the Tula region, the anionic-cationic composition of soils was determined. The most polluted of the soils are of the sanitary protection zone of chemical and metallurgical enterprises. The data obtained indicate a high level of anthropogenic pollution of soils of cities with nitrate and sulfate ions in comparison with the clean zone of the Yasnaya Polyana Museum-Estate. It was found that violation of the Na+ / K+ ratio, which is an important parameter for the mechanism of soil resistance to salinity, should be noted.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Kazarina, A.A. Galimyanov, A. Rasskazova, V.I. Mishnev
{"title":"THE EFFECTIVENESS OF THE APPLICATION OF THE FACE ON THE EXAMPLE OF THE DESTRUCTION OF CONCRETE STRUCTURES BY DEFLAGRATION","authors":"E. Kazarina, A.A. Galimyanov, A. Rasskazova, V.I. Mishnev","doi":"10.46689/2218-5194-2023-1-1-456-462","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-456-462","url":null,"abstract":"Extensive practical experience in conducting drilling and blasting operations confirms the relevance of the application of the face in the context of explosion quality. However, based on the experience of some quarries, there are doubts about the need to use slaughtering as one of the main factors in increasing the efficiency and, accordingly, abandoning it. The authors of different studies are divided in their opinions. Many researchers claim that the slaughtering contributes to an increase in the useful use of the energy of the explosion, however, under certain conditions, the slaughtering does not affect the efficiency of destruction. The article presents a laboratory study of the effectiveness of the slaughtering during crushing by deflagration method.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Kachurin, D. Prokhorov, Dmitry Ambartsumov, Ivan Erogin
{"title":"SIMULATION OF PARAMETERS OF INFLUENCE ZONES VERTICAL POLLUTANT FILTRATION AND WATER EROSION OF ANTHROPOGENIC MINERAL FORMATIONS","authors":"N. Kachurin, D. Prokhorov, Dmitry Ambartsumov, Ivan Erogin","doi":"10.46689/2218-5194-2023-1-1-544-554","DOIUrl":"https://doi.org/10.46689/2218-5194-2023-1-1-544-554","url":null,"abstract":"Approaches are considered for modeling the parameters of the zones of influence of the vertical migration of a pollutant into the soil and further into the underlying rocks, as well as the vertical migration of the leachate of anthropogenic mineral formations into aquifers. Computational experiments have been carried out and graphs of changes in pollutant concentration have been obtained. To model the size and shape of zones of influence of water erosion, approaches are proposed for assessing runoff from anthropogenic mineral formations.","PeriodicalId":41869,"journal":{"name":"Proceedings of the Tula States University-Sciences of Earth","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70576043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}