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Paste backfill materials for underground mining: Some experiences in Serbia: Part II 地下矿山膏体充填材料:塞尔维亚的一些经验:第二部分
Podzemni Radovi Pub Date : 2020-01-01 DOI: 10.5937/podrad2037033k
M. Kostović
{"title":"Paste backfill materials for underground mining: Some experiences in Serbia: Part II","authors":"M. Kostović","doi":"10.5937/podrad2037033k","DOIUrl":"https://doi.org/10.5937/podrad2037033k","url":null,"abstract":"This review paper presents the backfill method and materials for paste backfill method which are used in the world practice of underground mining. The paper consists of two parts. The first part (Part I) provides a brief literature review concerning the presentation of the backfill method, mostly the paste backfill method, its application, advantages and disadvantages, and materials that can be used to form a paste. The second part (Part II) of the paper presents an overview of possible materials that could be used for the eventual application of this method in Serbia. Flotation tailings from lead-zinc mines and copper mines, fly ash from thermal power plants and metallurgical slag can be potentially used materials for this method. This paper presents the characterization of these materials from some localities in Serbia and results of some investigations in this area.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71024916","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}
引用次数: 0
A multicriteria analysis of the working environment at Open Pit Mine loading and transport 露天矿装载与运输作业环境多准则分析
Podzemni Radovi Pub Date : 2020-01-01 DOI: 10.5937/podrad2036001b
D. Bogdanović, Goran Stojanović, V. Stanković
{"title":"A multicriteria analysis of the working environment at Open Pit Mine loading and transport","authors":"D. Bogdanović, Goran Stojanović, V. Stanković","doi":"10.5937/podrad2036001b","DOIUrl":"https://doi.org/10.5937/podrad2036001b","url":null,"abstract":"The working conditions in the loading and the transport sectors in mines are quite difficult. Operators and drivers are exposed to both physical and chemical hazards. Accordingly, the ranking of the workplaces at loading and transport in the mine was conducted in order to determine the workplace characterized by the most difficult working conditions. Five workplaces in the Open Pit Mine “Veliki Krivelj” were analyzed on the basis of the regularly measured parameters of the working conditions there (measures have done in 2018 year). The AHP/PROMETHEE methods were used as the ranking method. The AHP (Analytic Hierarchy Process) method enables us to determine the criteria weight of coefficients and the PROMETHEE (Preference Ranking Organization Method for the Enrichment of Evaluations) method enables the final ranking of the workplaces. The three scenarios were considered, as follows: the ranking of the loading workplaces, the ranking of the transport workplaces and the ranking of all the workplaces. The results indicate that the workplace of the Marion Excavator Operator is the most difficult workplace at loading. The workplace of the Euclid R 170 Truck driver is the most difficult workplace at transport. Finally, a comprehensive analysis of all the workplaces generated the results indicative of the fact that the workplace of the Marion Excavator Operator is the most difficult workplace. The obtained results indicate a clear distinction between the old and the new equipment. The results clearly suggest the importance of having modern equipment, which is the key element in taking care of the workers’ health.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71024087","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}
引用次数: 0
Theoretical analysis of hydromixture transport 氢化混合物输运的理论分析
Podzemni Radovi Pub Date : 2020-01-01 DOI: 10.5937/PODRAD2037041M
Slavica Mihajlović, Ljubinko Savić, D. Radosavljevic, Ljiljana Savić, M. Blagojev, S. Hredzák
{"title":"Theoretical analysis of hydromixture transport","authors":"Slavica Mihajlović, Ljubinko Savić, D. Radosavljevic, Ljiljana Savić, M. Blagojev, S. Hredzák","doi":"10.5937/PODRAD2037041M","DOIUrl":"https://doi.org/10.5937/PODRAD2037041M","url":null,"abstract":"This paper presents theoretical considerations and working parameters analyzes of hydrotransport during unstable flow. The variable flow of hydraulic mixture in installations causes unsteady operation and pipes spraying, pump damage, obturation in various sections of the pipeline, reduced capacity as well as higher operating costs. Using mathematical equations presented in this paper, such parameters of the hydraulic mixture, hydrotransport installation and control devices can be determined which protect system from possible clogging. Considering the fact that critical speed of hydraulic mixture depends on transported material grain size, mixture volume mass, diameter of pipeline and specific gravity of solid phase, it is possible to accurately analyze obturation in hydrotransport installations depending on those parameters. In order to prevent hydraulic impacts in hydrotransport installation pipelines, which value can be determined mathematically, it is necessary to adjust installation to hydromixture parameters and pump, or vice versa.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71024945","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}
引用次数: 0
Calculation the capacity of bucket wheel excavator the selective mining of overburden 计算了斗轮挖掘机选择性开采覆盖层的能力
Podzemni Radovi Pub Date : 2020-01-01 DOI: 10.5937/podrad2036019i
S. Ilić
{"title":"Calculation the capacity of bucket wheel excavator the selective mining of overburden","authors":"S. Ilić","doi":"10.5937/podrad2036019i","DOIUrl":"https://doi.org/10.5937/podrad2036019i","url":null,"abstract":"During open pit coal exploitation inevitably comes to land degradation. The negative changes, processes and consequences impose need for parallel working on sanitation and in general arranging destroyed natural areas. The one of sanitation criterion is implementation of reclamation which has a goal to restore completely or as much as it is possible, the destroyed area to its previous purpose. The priority has consistent conducting of technical reclamation of spoil in accordance with planned landscaping.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71024196","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}
引用次数: 0
Supplier ranking in mining systems in terms of quality: Case study: Public company for underground coal exploitation Resavica 采矿系统供应商质量排名：案例研究：Resavica地下煤炭开采上市公司
Podzemni Radovi Pub Date : 2019-12-31 DOI: 10.5937/podrad1935001s
Goran Stojanović, D. Bogdanović, M. Vuković, Bojan Stojčetović
{"title":"Supplier ranking in mining systems in terms of quality: Case study: Public company for underground coal exploitation Resavica","authors":"Goran Stojanović, D. Bogdanović, M. Vuković, Bojan Stojčetović","doi":"10.5937/podrad1935001s","DOIUrl":"https://doi.org/10.5937/podrad1935001s","url":null,"abstract":"The aim of this paper is to show the application of multi-criteria analysis (PROMETHEE method) in the selection of the suppliers which are working in the mining systems, specifically in the Public Company for the Underground Exploitation of Coal Resavica (PCUEC Resavica) – Serbia. The company ranking was done in terms of quality according to seven criteria. The criteria cover the most prominent aspects of the quality management of suppliers. Accordingly, 5 suppliers were taken into consideration. In ranking process the expert knowledge of the specialists from PCUEC Resavica was used. Firstly, the determination of the importance and the impact of certain criteria to the process of the suppliers selection was done, and after that the assessment of the suppliers according to each criteria is performed by company experts. PROMETHEE method is used for final ranking of the suppliers. Obtained results show that applied combined method gives excellent results and it can be used for solving a large scale of complex problems in mining systems.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41744125","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}
引用次数: 1
Relation between crustal stress and thickness of earth's crust 地应力与地壳厚度的关系
Podzemni Radovi Pub Date : 2019-12-31 DOI: 10.5937/podrad1935013t
Slavko Torbica, Veljko Lapčević
{"title":"Relation between crustal stress and thickness of earth's crust","authors":"Slavko Torbica, Veljko Lapčević","doi":"10.5937/podrad1935013t","DOIUrl":"https://doi.org/10.5937/podrad1935013t","url":null,"abstract":"Available models for estimation of crustal stress consider the vertical stress component as weight of above laying rocks, while horizontal stress components are estimated as function of vertical component. Herein, it is assumed that horizontal stress is effect of strain formed at seismogenic depth and transferred to shallower depth of rock mass. Strain rate is different depending on thickness of the crust and is different in different locations. Using available data regarding the measured maximum horizontal stress and depth of Moho discontinuity trend between these is obtained. Trend shows that maximum horizontal stress is decreasing with the thickness of the Earth’s crust and vice versa. Finally, expression that defines maximum horizontal stress from Moho depth and deformation modulus of rock mass is provided.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45349558","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}
引用次数: 0
Experimental determination of best performing cut in Lece underground mine Lece地下矿山最佳采场的试验确定
Podzemni Radovi Pub Date : 2019-12-31 DOI: 10.5937/podrad1935049t
Slavko Torbica, Miodrag Duranović, Nenad Gramić, Veljko Lapčević, M. Čolović
{"title":"Experimental determination of best performing cut in Lece underground mine","authors":"Slavko Torbica, Miodrag Duranović, Nenad Gramić, Veljko Lapčević, M. Čolović","doi":"10.5937/podrad1935049t","DOIUrl":"https://doi.org/10.5937/podrad1935049t","url":null,"abstract":"Development operation in underground mining require high performance drilling and blasting. In order to determine best performing cut in Lece mine series of experiments were conducted. It was noticed that sequencing of initiation has crucial impact on cut performance. Line cut had experienced filling of empty holes with blasted material that was indistinguishable from the main rock. Finally, best results were obtained by delayed initiation of charges in circular pattern. Such cut construction provided complete hole recovery instead of previous poor results.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44355087","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}
引用次数: 0
Different aspects of soft computing methods application for blasting in mining 软计算方法在矿山爆破中的不同应用
Podzemni Radovi Pub Date : 2019-12-31 DOI: 10.5937/podrad1935065u
Katarina Urošević, Jelena Zakonović, Jelena Ignjatovic, R. Gaćina
{"title":"Different aspects of soft computing methods application for blasting in mining","authors":"Katarina Urošević, Jelena Zakonović, Jelena Ignjatovic, R. Gaćina","doi":"10.5937/podrad1935065u","DOIUrl":"https://doi.org/10.5937/podrad1935065u","url":null,"abstract":"Mining is a global industry that is of great importance for every product which is used by human. For mining, process efficiency, reducing production downtime, increasing profitability are all very important. Soft computing tehnologies (SC) are helping in the process of transforming the mining industry into a safer and more environmental friendly industry, but keeping in mind the financial aspect as well. In this paper some of fields of blasting activities in which the SC methods have been applicated, will be presented. Trough the following chapters some of the most significant researches will be reviewed.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46644756","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}
引用次数: 0
Correlation of uniaxial compressive strength with the dynamic elastic modulus, P - wave velocity and S - wave velocity of different rock types 不同岩石类型的动弹性模量、纵波速度和横波速度与单轴抗压强度的相关性
Podzemni Radovi Pub Date : 2019-07-10 DOI: 10.5937/PODRAD1934011M
J. Majstorović, M. Gligorić, Suzana Lutovac, Milanka Negovanović, Luka Crnogorac
{"title":"Correlation of uniaxial compressive strength with the dynamic elastic modulus, P - wave velocity and S - wave velocity of different rock types","authors":"J. Majstorović, M. Gligorić, Suzana Lutovac, Milanka Negovanović, Luka Crnogorac","doi":"10.5937/PODRAD1934011M","DOIUrl":"https://doi.org/10.5937/PODRAD1934011M","url":null,"abstract":"Knowing mechanical properties of rocks incorporated with ultrasonic waves velocities investigations provide a secure basis for mine modelling. Uniaxial compressive strength, dynamic elastic modulus and ultrasonic waves velocities are just some of the rock properties that indicate on presence of discontinuities, stratification and fissures of rocks. Determining the relationship of these rock properties testing the rock samples that are corresponding to different rock types extracted from different mineral deposits represents the core of this study.   \u0000In this paper, we statistically analyzed measured and calculated rock properties. We established the connection between these parameters creating empirical correlation equations. Using least squares method and simple linear regression analysis, we defined correlation coefficients and also developed empirical correlation equations.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41312586","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}
引用次数: 2
Application of softwares for drilling and blasting 钻孔爆破软件的应用
Podzemni Radovi Pub Date : 2019-06-30 DOI: 10.5937/PODRAD1934077M
S. Milanović, L. Kricak, Milanka Negovanović, N. Simic, J. Marković
{"title":"Application of softwares for drilling and blasting","authors":"S. Milanović, L. Kricak, Milanka Negovanović, N. Simic, J. Marković","doi":"10.5937/PODRAD1934077M","DOIUrl":"https://doi.org/10.5937/PODRAD1934077M","url":null,"abstract":"Nowadays, software is increasingly used in mining through the exploitation of mineral raw materials, mine design, in performing various field operations, etc. Among mining software, there is software for specific mining operations such as drilling and blasting operations. These processes are very important in the exploitation of solid mineral raw materials because they represent the cheapest and most effective form of rock mass fragmentation. Through the Paper, some of software is presented in the combination with modern technologies that are in use all over the world which have brought great advantages in drilling and blasting operations.","PeriodicalId":31689,"journal":{"name":"Podzemni Radovi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43574699","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}
引用次数: 2
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