Geo-Technical Mechanics最新文献

{"title":"Scientific approaches to solving a problem of highly mineralized mine waters","authors":"","doi":"10.15407/geotm2022.160.080","DOIUrl":"https://doi.org/10.15407/geotm2022.160.080","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126664583","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":"The possibilities to estimate hydroloosening efficiency by asymptotic form of barodynamic curve","authors":"S. Minieiev, O. Usov, Yu. E. Poliakov","doi":"10.15407/geotm2022.162.066","DOIUrl":"https://doi.org/10.15407/geotm2022.162.066","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126670297","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":"Research of the impact of open-pit mining on the land and water resources in Kryvbas","authors":"Yevhenii Malieiev, Kateryna Levchenko","doi":"10.15407/geotm2022.162.135","DOIUrl":"https://doi.org/10.15407/geotm2022.162.135","url":null,"abstract":"Main effects of mining operations on the land and water resources while mineral mining are considered. Identify that intensive open-pit and underground development of mineral deposits has resulted in the disturbed natural environment, which, in turn, have changed geomorphological and hydrogeological structure of the region. Current stage of the disturbed land and water resources are determined in terms of Kryvyi Rih iron-ore basin. The analysis showed that аs a result of mining and technical activities in Kryvbas, minimum 15-20 mln ha of land are disturbed, 59 % of this area is used for different mine workings, 38 % is covered with waste rock dumping or waste from mineral concentration, and 3 % is the sites of subsidence, caving, and other land surface disturbances due to underground mining. Thus, about 1 km3 of drainage water is extracted annually during mineral extraction. As a result, natural landscapes have been replaced by new technogenic objects, which, in turn, have changed geomorphological and hydrogeological structure of the region. Key technological objects of the largest enterprises of Kryvbas mining industry as well as their parameters are studied. Dynamics of the accumulation of emissions and discharges of the production wastes of Kryvyi Rih iron-ore basin enterprises as well as their location are shown. Identify that by means of gross discharge of the contaminating substances. On average, more than 235.62 thous. t/year enter the air with the dust. Also identify that the largest mining enterprises of Kryvyi Rih Region discharge on average 2296.8 thous. m3/year of the contaminated water. Certain measures are proposed to facilitate reduction of the impact due to open-pit mining on the indicated environmental components. They are aimed at involve implementation of resource-saving technologies along with reclamation of the technogenic objects. Keywords: mining operations, impact, technogenic object, waste dump, land resources, water resources.","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"335 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122328532","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":"Monotype towns of Prydneprovye: problems of restructuring","authors":"Anatoliy F. Bulat, T. Bunko, I. Kokoulin, R. Papirnyk","doi":"10.15407/geotm2019.149.175","DOIUrl":"https://doi.org/10.15407/geotm2019.149.175","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116060672","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":"Review of potential sources for obtaining energy carriers and mineral raw materials in outer space","authors":"K. Bezruchko","doi":"10.15407/geotm2022.163.140","DOIUrl":"https://doi.org/10.15407/geotm2022.163.140","url":null,"abstract":"The problem of resource provision on Earth includes three main aspects – depletion due to the lengthy development of large volumes of non-renewable resources, shortage of certain types of resources due to their rarity and insignificant concentrations, high cost of extraction and beneficiation due to a number of factors, including the conditions of occurrence and imperfection of technologies. Resources in general are all types of resources – energy, mineral, water, and, separately, oxygen. Space objects are one of the possible directions of searching for alternative non-traditional sources of energy and mineral raw materials. Space exploration will help to solve a number of global problems for humanity, including demographic, food, energy, raw materials, and the environmental. The purpose of the paper is to justify the need of searching for potential alternative ways of obtaining energy carriers and mineral raw materials of a non-traditional type and to determine their possible sources in outer space. On the basis of the analytical review of potential alternative ways and sources of obtaining energy carriers and mineral raw materials of a non-traditional, it is justified that the research of space objects (planets, satellites, comets, asteroids) aimed at searching non-traditional type is relevant. The relevance of this direction is confirmed not only by the development of appropriate technologies for the exploration of space objects but also by the development and improvement of the legal framework governing space exploration. The main and most important directions of research are life support during the development of space objects, energy supply, mining and processing of minerals, chemical and biological production. Issues of life support involve providing, first of all, oxygen and water. For energy supply, it is advisable to consider helium-3 (He-3), water, oxygen, hydrogen, and ethane as potential sources. The most promising mineral resources in space are rare and rare-earth elements, platinum and metals of the platinum group, nickel, and cobalt. It is proven that the most promising space objects for the extraction of mineral raw materials are asteroids due to their relative availability, structural features, and higher concentration of minerals.","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115955417","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":"Traction capability of friction hoist with bobbin counterbalancing device","authors":"M. Polushyna, T. V. Moskalеva","doi":"10.15407/geotm2019.149.068","DOIUrl":"https://doi.org/10.15407/geotm2019.149.068","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121032484","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":"The hierarchical model of fuzzy logic output formalization for digital systems evaluating mine workings stability","authors":"А.І. Slashchov, І.M. Slashchov, N. V. Osinnya, I. Konstantynova","doi":"10.15407/geotm2019.149.122","DOIUrl":"https://doi.org/10.15407/geotm2019.149.122","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121816597","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":"On one method of risk evaluating in geotechnical mechanics tasks","authors":"O. Krukovskyi, Hryhoryi Larionov","doi":"10.15407/geotm2021.157.029","DOIUrl":"https://doi.org/10.15407/geotm2021.157.029","url":null,"abstract":"To increase the efficiency of the existing labor protection system at industrial enterprises of Ukraine, there was a need for its improvement. It was decided to do it based on systems management of labor protection and risk control. However, it turned out that risks can be identified not in each technical system. Most of the processes in technical applications are deterministic, and therefore the concept of risk is not applicable, since none of the parameters of the system is a random variable. Since it is impossible to determine the degree of risk, then the only possible way out is to assess a degree of influence of this or that parameter on the performance of the entire system. So, for deterministic mathematical models (MM), the influence of the parameters can be determined by the methods of the theory of sensitivity (ST). However, the ST has not yet received widespread use in technical applications due to the significant complexity of research. In order to determine sensitivity, it is proposed to use in technical applications performance criterion approximation, which characterizes the risk of the process going beyond the performance limits, instead of ST. If approximation of a selected criterion is represented in the form of a product of power functions, each of which depends only on one parameter, then, according to the exponents, it is possible to approximately establish its sensitivity to variations in the parameters. The greater is an exponent, the more this parameter influences the criterion. Thus, it is possible not only to carry out an approximate assessment of the influence of the parameters on the criterion itself, but also to make conclusions regarding the risk of the system going beyond the permissible limits. The experience of successful use of the method of sequential approximation (SAM) in applied problems of mechanics allows not only to obtain an analytical form of the criterion at a point, but also to expand a solution of practical problems to the entire domain of function. The errors of such expanding, as a rule, do not exceed 5‑7 %, which is sufficient for most applied problems of geotechnics. The accuracy of determining the criterion can be increased to the required level by narrowing an area of its definition, i.e. parameter change intervals. A hypothesis of existence of representation of functions in the form of a product of functions, each of which depends on one parameter, is formulated. The efficiency of the use of power functions for an approximate assessment of the system risks when it going beyond the limits of operability is shown. Keywords: theory of sensitivity, variation of parameters, approximation of a function, approximate estimate, small error.","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131371996","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":"Risk-forming factors and processes at the stages of the life cycle of hoisting equipment in the mine vertical shafts","authors":"","doi":"10.15407/geotm2022.161.028","DOIUrl":"https://doi.org/10.15407/geotm2022.161.028","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132540834","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":"Abrasive fatigue wear rubber lining in the context of fractal analysis","authors":"A. Kobets, Dnipro State Agrarian, V. Dyrda, Ye.V. Kalhankov, I. M. Tsanidi, O. Chernii","doi":"10.15407/geotm2019.144.103","DOIUrl":"https://doi.org/10.15407/geotm2019.144.103","url":null,"abstract":"","PeriodicalId":222378,"journal":{"name":"Geo-Technical Mechanics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133067760","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}