{"title":"Modeling Procedure of Fluid Flow in Solid Mineral Mining Using Hydraulic Fracturing","authors":"","doi":"10.15372/ftprpi20200601","DOIUrl":"https://doi.org/10.15372/ftprpi20200601","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90319711","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":"Natural Convection in Watered Rock Mass under Artificial Freezing","authors":"","doi":"10.15372/ftprpi20200218","DOIUrl":"https://doi.org/10.15372/ftprpi20200218","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72920352","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}
The author solves the problem connected with determination of shape of pillars which remain stable under any compression due to barrel distortion. The analysis of cylindrical structures uses the known Leibenson–Ishlinsky stability criterion. The boundary conditions of the problem and its solution are obtained: elasticity in the form of the critical load dependence on the height/radius ratio of pillars. The found asymptote to the curves is associated with the optimized shape of pillars.
{"title":"Optimization of Pillar Shape Using the Leibenson-Ishlinsky Stability Criterion","authors":"","doi":"10.15372/ftprpi20200505","DOIUrl":"https://doi.org/10.15372/ftprpi20200505","url":null,"abstract":"The author solves the problem connected with determination of shape of pillars which remain stable under any compression due to barrel distortion. The analysis of cylindrical structures uses the known Leibenson–Ishlinsky stability criterion. The boundary conditions of the problem and its solution are obtained: elasticity in the form of the critical load dependence on the height/radius ratio of pillars. The found asymptote to the curves is associated with the optimized shape of pillars.","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82711822","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":"Seismoacoustic Method for Assessing the Seismic Energy Absorption Coefficient on a Mining Longwall Panel Length-A Case Study","authors":"","doi":"10.15372/ftprpi20200605","DOIUrl":"https://doi.org/10.15372/ftprpi20200605","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91044152","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":"Influence of Dispersiveness of Emulsion Composed of Oily Regents on Coal Flotation Results","authors":"","doi":"10.15372/ftprpi20200520","DOIUrl":"https://doi.org/10.15372/ftprpi20200520","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84482925","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":"Delineation of Phreatic Surface in Soil Type Slope-A Comparative Study Using Physical and Numerical Modeling","authors":"","doi":"10.15372/ftprpi20200318","DOIUrl":"https://doi.org/10.15372/ftprpi20200318","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77627692","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":"Statistical Analysis of Methane Release in High-Production Coal Faces in Kuzbass","authors":"","doi":"10.15372/ftprpi20200212","DOIUrl":"https://doi.org/10.15372/ftprpi20200212","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85502911","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":"Assessment of Deformation of a Coal Seam and a Roadway through the Identification of Top Coal Caving Parameters","authors":"","doi":"10.15372/ftprpi20200401","DOIUrl":"https://doi.org/10.15372/ftprpi20200401","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79410325","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":"Support Design for Rockburst-Hazardous Underground Mines in Gornaya Shoria","authors":"","doi":"10.15372/ftprpi20200408","DOIUrl":"https://doi.org/10.15372/ftprpi20200408","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88059178","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":"A Method to Determine Aerodynamic Drag Coefficient in Copper-Nickel Mine Shafts","authors":"","doi":"10.15372/ftprpi20200615","DOIUrl":"https://doi.org/10.15372/ftprpi20200615","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86972050","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}
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