Applications of numerical modelling in underground
Numerical modelling has been used to investigate a variety of problems in underground mining and tunnelling: subsidence induced by longwall coal mining; stresses generated when an open stope is filled cemented backfill and the stability of exposures created during subsequent mining of adjacent stopes; the interaction of two tunnels; and the effects of under-mining a pre-existing tunnel and shaft. In each case,Field Measurement and Numerical Modelling Study on,26/04/2021· Field Measurement and Numerical Modelling Study on Mining-Induced Subsidence in a Typical Underground Mining Area of Northwestern China Kai Zhang,1 Lu Bai,1 Pengfei Wang,2,3 and Zhuang Zhu2 1School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaNumerical Modeling in Mine Structure Design - ScienceDirect,01/01/1987· Three examples were selected to demonstrate the application of numerical modeling techniques toward solving mine-design-related rock mechanics problems: a roof stability problem, a floor heave problem, and the results of a case study to determine the stability of a chain pillar influenced by multiple seam interaction. The first two examples are hypothetical and are presented only to,Numerical modelling in mining - SlideShare,25/04/2013· Numerical modelinganalysis with the help of FLAC-3Dfacilitates the mining engineer to foresee themining process & to know the behavior of the rock after every stage of mining likedevelopment & stoping. The main objective of numerical modeling is to simulatethe mining scenario & to predict the behavior and the effect of stress distributionwithout actually performing the mining in practical.This paper mainly deals with the application of numerical modeling analysisNumerical modelling - QueensMineDesignWiki,FLAC3D is a numerical modeling code for advanced geotechnical analysis in 3D. It is used in analysis, testing and design by geotechnical, civil and mining engineers. The program is designed to enhance any kind of geotechnical engineering practice where continuum analysis is required (Figure 6). Figure 6-A simple bench slope in FLAC3D.Special Issue "Numerical Modeling in Civil and Mining,,30/04/2021· Numerical modeling is largely used in geotechnical engineering to understand the responses of infrastructures in civil and mining engineering. Many homemade or commercialized numerical codes are available to handle with different geotechnical problems. For some, numerical modeling can be used as a useful tool to obtain qualitative results, showing some general idea or
Field Measurement and Numerical Modelling Study on
26/04/2021· 5. Numerical Modelling Study and Discussion. Due to the limitation of the number and the density of monitoring points on the ground surface in the field study, it was impossible to take a more detailed look at the strata movement. Therefore, a numerical modelling study was carried out in which any point in the model can be monitored. As the,Numerical modelling of undermined river valleys - a case study,Numerical Modelling of Undermined River Valleys — A Case Study. W Keilich. 1, J W Lee. 1, N Aziz. 1. and E Baafi. 2 ABSTRACT. Ground subsidence due to mining is a common dilemma confronting the underground coal mining industry. The effects of underground longwall mining on river valleys have come under scrutiny, especially whenThe Use of Numerical Modeling for Underground Coal,01/01/1993· In Section 28.4 two detailed case studies demonstrate the importance of the parameters used in the conceptual and numerical models. The validity of the predictions made with appropriate threedimensional models with realistic input parameters is confirmed by comparisons with field measure ments. Three-dimensional numerical models of this level of complexity are now routinely used forNumerical modelling - QueensMineDesignWiki,In most cases the model does not need to be complete but to be adequate for the purpose of the study .This, Basic numerical modelling which captures most relevant rock mass mechanisms, and Method D: Extensive numerical methods which involves all rock mass mechanisms. Rock mass characterization can be obtained in the first stage getting the benefit of site investigation. One important point,GROUNDWATER FLOW MODELLING APPLICATIONS IN MINING HYDROGEOLOGY,In the presented paper some specific features and problems of numerical modelling applications in mining environment are briefly discussed. The issues discussed are documented by three modelling case studies. Two of the applications are aimed at mine dewatering problems in active coal mines. The first represents the underground hard coal mining region in the Czech part of the Upper Silesian,Numerical modeling in the mining industry: CADFEM and,,Software On-Demand Industries Case Studies Events Technical Library Blog News Contact Request your free trial. Numerical modeling in the mining industry: CADFEM and ROCKY DEM at IPMC-2018 . Share this Home; News; Numerical modeling in the mining industry: CADFEM and ROCKY DEM at IPMC-2018; The International Congress on the Enrichment of Minerals and the exhibition IMPC-2018
Ground Water Flow Modelling Applications in Mining,
16/10/2007· Some specific features and problems of numerical modelling applications in mining environment are briefly discussed and three modelling case studies are presented. Two of the applications are aimed at mine dewatering problems in active coal mines. The first represents the underground hard coal mining region in the Czech part of the Upper Silesian Coal Basin.Numerical modelling in Geomechanics - SlideShare,16/11/2010· Numerical modelling in Geomechanics 1. 152 National Seminar on Underground Coal Mining “ THE FUTURE OF OVERGROUND LIES BELOWGROUND” * Chief General Manager, CP&P, Singareni Collieries Co. Ltd, * * Associate Professor, Department of Mining Engineering, IIT, Kharagpur, ***Extending empirical evidence through numerical modelling,,case studies are presented in which empirical models were used to validate numerical models and the numerical model outcomes were used to supplement empirically based design methods. Models as tools in engineering design Models of various types are used by engineers and scientists to represent reality in a logical and objective way (Frigg and Hartmann, 2006). Models allow us to investigate the,Mining | Model & Analyze Underground and Surface Mines,Case Study: Developing Safe Mine Re-Entry Plans Using RS2 January 5, 2021. Slope failures can suspend open pit mining until a safe re-entry plan is developed. In this case study, RS2's Finite Element Analysis was used for back-analysis and for predictive modelling of re-entry scenarios using Shear Strength Reduction.Numerical Modelling of Mining Subsidence,A case study was completed on a Rio Tinto mine called Kestrel which is located near Emerald, QLD. Being provided some the required information allowed for a numerical model to be generated in FLAC 2D. This project aimed to develop a numerical model within FLAC to accurately measure and model subsidence. This is due to the fact that numerical models are extremely important when dealing with,Numerical modelling of undermined river valleys - a case study,Numerical Modelling of Undermined River Valleys — A Case Study. W Keilich. 1, J W Lee. 1, N Aziz. 1. and E Baafi. 2 ABSTRACT. Ground subsidence due to mining is a common dilemma confronting the underground coal mining industry. The effects of underground longwall mining on river valleys have come under scrutiny, especially when
Numerical Modelling of Mechanical Behavior of Coal Mining,
Numerical Modelling of Mechanical Behavior of Coal Mining Hard Roofs in Different Backfill Ratios: A Case Study Meng Li, Nan Zhou *, Jixiong Zhang and Zhicheng Liu Key Laboratory of Deep Coal Resources Mining, School of Mines, Ministry of Education of China, China University of Mining & Technology, Xuzhou 221116, China; [email protected] (M.L.); [email protected] (J.Z.);Three Dimensional Numerical modelling Of Coal Mine,,Three Dimensional Numerical modelling Of Coal Mine Roadways Under High Horizontal Stress Fields CSM Project Dissertation Submitted by Arun Sarathchandran to the University of Exeter as a dissertation towards the degree of Master of Science by advanced study in Mining Resource Engineering, May, 2014 “I certify that all material in this dissertation which is not my own work has been identified,Mine Design and Numerical Modeling Laboratory - McGill,,Saharan, M.R. and Mitri, H.S. (2010) Numerical modelling investigations to study effect of geotechnical and explosive properties in limiting rock fracturing due to blasting in deep mining roadways. In Proc ISRM International Symposium 2010 and 6th Asian Rock Mechanics Symposium - Advances in Rock Engineering 23-27 October, 2010, New Delhi, India, Paper No. 136 (pp. 1-14)Strength, fallouts and numerical modelling of hard rock masses,evaluated through three case studies. A Round Robin Test was conducted for two of these cases. The evaluation was performed in order to identify robust systems and criteria, as well as to identify the parameters having the strongest impact on the calculated rock mass strength. The case studies revealed that the N, Yudhbir – RMR 76,NUMERICAL MODELLING OF ROCK MASS DEFORMATION IN,Acta Geodyn. Geomater., Vol. 9, No. 3 (167), 379–388, 2012 NUMERICAL MODELLING OF ROCK MASS DEFORMATION IN SUBLEVEL CAVING MINING SYSTEM .Jan BLACHOWSKI 1)* and Steinar ELLEFMO 2) 1) Institute of Mining Engineering, Wroclaw University of Technology, pl. Teatralny 2, 50-051 Wroclaw, Poland 2) Department of Geology and Mineral Resources Engineering, NorwegianNUMERICAL MODELING OF YIELDING CHAIN PILLARS IN,history reviews and numerical modeling studies performed with the objective of improving the understanding of yield pillar behavior. The case history review indicates that yield pillars with width:height ratios 3 to 6 performed satisfactorily. The numerical modeling studies using a three-dimensional finite difference code FLAC3D [1] allowed realistic simulations of complex mining geometries,
Extending empirical evidence through numerical modelling,
case studies are presented in which empirical models were used to validate numerical models and the numerical model outcomes were used to supplement empirically based design methods. Models as tools in engineering design Models of various types are used by engineers and scientists to represent reality in a logical and objective way (Frigg and Hartmann, 2006). Models allow us to investigate the,Mathematics | Special Issue : Numerical Modeling and,31/01/2021· In this case, the nanofluid parameters, the Brownian motion, and thermophoresis altogether reduce the overall heat transfer rates of the non-Newtonian nanofluid. Full article (This article belongs to the Special Issue Numerical Modeling and Analysis) Show Figures Figure 1. get_app. subject. View online as: Abstract Page Full-Text HTML. Open Access Article. Effective Conductivity of Densely,,,,,
