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modellingnumerical modelling case studies in mining

Quantitative validation of scaled modelling of hydraulic mine drainage ...

The scale model has been validated against an existing and currently used two·dimensional mine drainage simulation program. The numerical model was used to study the effects of various mine drainage parameters on the discharge quantity. These include drain location on the stope, distance of the drain within the drive, and the number of drains.

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Hugues Nkulu Ngoy - Hydrogeologist - Knight Piesold Southern ... - LinkedIn

Hugues Nkulu is a hydrogeologist with more than 5 years of experience in hydrogeology and geo-related sciences within the mining area. From his background in geology, he acquired experience in mineral exploration (concurrent to specialized hydrogeological investigation) and mineral deposit development. His experience in hydrogeology covers the ...

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Geotechnical studies of retreat pillar coal mining at shallow depth

This thesis presents the results of research into geotechnical aspects of retreat pillar coal mining at shallow depth (less than 100m). The fieldwork component was carried out over a four-year period at the Quinsam Coal Mine. The geotechnical aspects investigated were excavation stability, excavation support, pillar design, gob cave prediction, and subsidence. These were all considered ...

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Peer Reviewed Journal - IJERA

International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research ..

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Thomas RATOUIS - Head of Reservoir Engineering - LinkedIn

A numerical model of the RGF is developed to study its response to production history. The 3D grid allows for explicit representation of faults and geothermal surface features. Temperatures,...

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Probabilistic analysis of open stope stability using numerical modelling

A probabilistic approach is presented for the analysis of open stope stability. The approach considers the inherent variability and uncertainty which are typical of rock mass properties. In this study, a series of numerical analyses were performed

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Modelling and optimization of a rotary kiln direct reduction ... - SciELO

overview of the kiln modelling method. The second part shows how the process is automated and combined with a numerical optimization scheme. The result is a powerful approach to kiln operational optimization. Illustrative examples are included for the case of iron ore reduction in a generic rotary kiln. Rotary kiln model Kiln modelling consists ...

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Staff - Armen Beklaryan — HSE University

2016 Candidate of Sciences * (PhD) in Mathematical Modelling, Numerical Methods and Software Complexes Higher School of Economics Thesis Title: Agent-based model of crowd behavior in an emergency situation for evaluating intensity of the output flow front 2016 Doctoral programme in Mathematical modeling, numerical methods and complexes of programs

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International Journal of Mathematical Modelling & Computations

international journal of mathematical modelling & computations(ijm2c) is an international scientific journal and a forum for the publication of high-quality peer-reviewed papers published by academic publications of islamic azad university, central tehran branch, which aims publishing original and high-quality research articles (including regular .

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Study with us - Greenwich Academic Literature Archive

Items where Faculty / School / Research Centre / Research Groups is "Faculty of Liberal Arts & Sciences"

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Geometric modelling, numerical simulation, and optimization applied ...

Geometric modelling, numerical simulation, and optimization applied mathematics at SINTEF 9783540687825, 3540687823 ... [email protected] and Centre for Nonlinear Studies (CENS) Institute of Cybernetics Tallinn University of Technology ... It also exemplifies the collaboration with other European partners, in this case through a co-author from ...

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International Journal of Physical Modelling in Geotechnics

Herein, both numerical and physical modelling were used to capture the important features of the mechanical behaviour of buried pipelines under live moving surface loads. The physical models were tested under modified gravity in a centrifuge, which allowed the calibration of a three-dimensional numerical finite-element model.

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Excel VBA Monte Carlo Simulation Stock Prices Generator - Google

To enable macros, go to Excel Menu - Tools / Options, click on the Security tab and go to Macro Security. Change the setting to Medium, close and reopen the workbook It will ask you if you want to...

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The Evolution of Geotech - 25 Years of Innovation

Rocscience created this event to bring geotechnical academics, researchers and practitioners together to exchange ideas as part of celebrating 25 years of the company's existence. The papers in these proceedings were from keynotes, panel discussions and papers, selected after careful review of over 100 technical submissions delivered at RIC 2021.

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Measurement and Prediction of Dilution at Target Mine Operating ... - AMMSA

Case Study 1 8271 12323 6.8 7.0 32.88% 33.0 2.7 Case Study 2 16197 23806 9.1 9.6 31.96% 38.4 4.1 Case Study 3 10665 17691 8.1 8.6 39.72% 34.2 4.6 Case Study 4 70724 126508 16.9 23.3 44.10% 41.4 11.4 ... Modelling •Time delay between mining and backfill of open stopes to be controlled . Questions? Title: Slide 1

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Numerically and Analytically Forecasting the Coal Burst Using Energy ...

Indeed, mining-induced seismicity can reach moderate values of ground velocity and acceleration, and in some cases its effects on the surface can be compared with low-intensity earthquakes . The mechanism that produces the seismic event is a sudden release of the strain energy that has been stored above a critical level within the rock/coal mass.

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Seismic hazard calculation using the equivalent ... - ScienceDirect

May 1, 2022from numerical modelling, the modelled plastic displacement (d) is integrated over the failed area (a) to calculate, together with the rock mass stiffness (g) (obtained from rockmass characterization), a modelled seismic moment (mom) for each modelled stage (j), as described in equation (4) and as shown by potvin, 16 sjöberg 17 and jarufe. 27 .

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Hans Mattsson, Associate Professor, +46 (0)920 492147, 2147 ... - LTU

Associate Professor. Luleå University of Technology. Research subject: Soil Mechanics. Division: Mining and Geotechnical Engineering. Department of Civil, Environmental and Natural Resources Engineering. [email protected]. +46 (0)920 492147. T3312 Luleå.

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Groundwater Flow Modelling Applications in Mining: Scopes and Limitations

ing: "a mathematical model is a representation of the essential aspects of an exist-ing system (or a system to be constructed) which presents knowledge of that system in a usable form" [1]. For groundwater a numerical model represents the conceptual model of water flow. Numerical model is the second step of a series of activities.

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School of Quantitative Sciences (SQS) - MASTER OF SCIENCE (RESEARCH)

Goal Programming and Fuzzy Approach in Determining Mutual House Price and Affordability: A Study in Kedah, Malaysia. Nor Syuhadah Saidin: Dr. Nerda Zura Zaibidi (Assoc. Prof.) Dr. Nor Intan Saniah Sulaiman. Decision Support System for Building Information Modelling Software Selection: A Case Study in Construction. Ahmad Taufik Nursal

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1.0 LOCATION OF PROPOSED MINE - Centre for Environmental Rights

assist with the numerical modelling. Numerical modelling has been undertaken using Modflow, a finite difference modelling code, widely used for groundwater studies. The Modflow model covers an area of 131km2. The model boundaries selected are sufficiently far from the open pit to not influence the results obtained from the mining.

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InvestigationofPressureReliefBoreholeEffectsUsingInSitu ...

ResearchArticle InvestigationofPressureReliefBoreholeEffectsUsingInSitu TestingBasedonDistributedOpticalFibreSensingTechnology YunpengLi,1,2,3DequanSun,2 ...

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An iterative design and schedule approach to the E22 block cave project ...

The design process for E22 has gone through several iterations of geological modelling, flow modelling, numerical modelling, footprint finder, production scheduling, footprint design, development scheduling and cost estimation following the process shown in Figure 1. Figure 1 Design process flow chart

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Surface mining and quarrying - kriging

organized by the Institution of Mining and Metallurgy in association with the Institute of Quarrying and held in Bristol, England, from 4 to 6 October, 1983 "Reserve estimation -- a geostatistical case study on the comparability of drilling methods" in Surface Mining and Quarrying, Inst. Min. Metall., London, pp.135- 144

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Numerical modelling of spontaneous crack generation in ... - Emerald

The main purpose of this paper is to present and use the particle simulation method to explicitly simulate the spontaneous crack initiation phenomenon in brittle materials, and to compare the particle simulation results with experimental ones on the laboratory scale. Design/methodology/approach

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Crown pillars - QueensMineDesignWiki

This formula is based on several case studies, and is applicable wherever for block caving mining underneath an open pit. Numerical Modelling. Numerical modelling is a flexible solution for analyzing pillar stability, and can consider a large number of influencing factors such as stresses, rock mass properties, geometry, and more . These models ...

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Diana Camila Buitrago Ospina - Consultant - IQVIA | LinkedIn

Pfizer COVID-19 vaccine 96% effective in pregnant women, study says Results from an observational cohort study of pregnant women indicated a 96%. Recomendado por Diana Camila Buitrago Ospina #RWE can augment, extend, or enrich the findings from #clinicaltrials to provide valuable evidence to support the development programs for product.

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Mathematics | Special Issue : Modeling and Numerical Analysis of Energy ...

Mathematical modelling and numerical simulation are fundamental tools in the description of a wide variety of physical and technical phenomena. The capability of mathematical models to represent real situations and therefore, to make predictions on the behaviour of these systems makes their use essential when dealing with real-world applications.

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Modeling, Simulation and Optimization of Complex Processes

Mathematical Modelling of Chemical Diffusion through Skin using Grid-based PSEs.- Modelling Gene Regulatory Networks Using Galerkin Techniques Based on State Space Aggregation and Sparse Grids.- A Numerical Study of Active-Set and Interior-Point Methods for Bound Constrained Optimization.- Word Similarity In WordNet.-

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Characterization and analysis of discontinuous subsidence associated ...

Numerical modelling conducted in a benchmark study testing several different numerical methods (finite-element, distinct-element, FEM-DEM with brittle fracture and 3-D finite-difference) indicates this is only the case for macro deformations and the lateral extent of smaller strain deformations increases as a function of undercut depth, which ...

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CO Meeting Organizer EGU22 - Copernicus

The main goal of the session is to establish closer links between seismological observations and process-oriented modelling studies to demonstrate the potential of different methods, and to share ideas of how we can collaboratively study upper mantle structure, and how the present-day fabrics of the lithosphere relates to the contemporary ...

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Tracks and Sessions - IEEE MELECON 2022

abstract - in the last few decades, energy storage systems were investigated because of their potential role in the electrical grid operation and planning, both in case of stationary installation (characterized by larger sizes in terms of both power and energy, including power-to-x technologies, p2x) and mobile technologies (the so-called .

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2014, volume 18, №2 | Computer Modelling and New Technologies

The main object of this paper is to present the basic set of equations in mesoscale meteorological model on the Cantor sets involving local fractional derivative operators and the corresponding cantor-type spherical coordinate equations. It is shown that these equations are efficient and accurate for describing some of atmospheric motion.

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The approach to mining safety improvement: Accident analysis of an ...

This paper presents the numerical approach to the safety and ergonomics issues regarding the biomechanics of the mining machine operator. Based on actual accidents, the authors analyzed the current requirements for protective structures in regard to operator safety aspects.

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Numerical Methods with MATLAB - Scitus Academics

Description Numerical analysis is a branch of mathematics that solves continuous problems using numeric approximation. It contains designing methods that give estimated but precise numeric solutions, which is useful in cases where the exact solution is impossible or prohibitively expensive to calculate.

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Case study: the simulation modelling of selected activity in a ...

techniques to solve problems: calculations, modelling, numerical simulation, computer simulation, etc. [9]. The use of simulation modeling as a scientific method in research and practice is widespread. The benefits of using a simulation modeling approach include financial, time material and energy savings, as well as streamlining

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Numerical modeling and environmental isotope methods in ... - DeepDyve

Improved groundwater flow conceptualization was achieved using environmental stable isotope (ESI) and hydrochemical information to complete a numerical groundwater flow model with reasonable certainty. The study aimed to assess the source of excess water at a pumping shaft located near the town of Stilfontein, North West Province, South Africa. The results indicate that the water intercepted ...

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(PDF) Three-Dimensional Physical and Numerical Modelling ... - ResearchGate

A case study of Yanqianshan iron mine is considered and the corresponding 1:200 model rock slope was created for studying the rock joint effects on the strata movement and the subsidence mechanism...

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Mathematician - ANZSCO 224112 - HOME

Mathematics is the study of deductive systems, including algebra, number theory, geometry, analysis, differential equations, discrete mathematics, and its application in. the sciences and social sciences. Qualifications in certain fields (listed below) may be accepted on a case by case basis if.

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Gamal M . A . Mahran | Al-Azhar University - Academia.edu

Numerical simulation of particulateflow in spiral separators (15 % solids) by Gamal M . A . Mahran Spiral separator is a gravity concentration device. It was invented by Humphreys in 1941.It is firstly designed and developed based on experience and through many testing of prototypes and modifications. The main objective of the present... more

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