Project Title: Organization: Colorado School of Mines N/A

rockmass. Numerical models provide additional tools with which to explore the underlying mechanistic causes of these failures as they relate to deep coal mines across the U.S. As part of this project, a series of coal bump case histories will be selected across a range of coal mining …

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numerical model - SlideShare

May 02, 2014· A model is a simplification of reality rather than an imitation of reality. It is an intellectual tool that has to be designed or chosen for a specific task1. Most of the numerical modelling undertaken in the process of mine planning and design involves using …

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Numerical modeling for longwall pillar design: a case ...

Jan 16, 2018· This paper presents a new numerical modeling procedure and design principle for longwall pillar design with the assistance of numerical simulation of FLAC3D. A coal mine located in Yanzhou city, Shandong Province, China, was selected for this case study.

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Calibrating Numerical Modeling Tools for Stress Profiles ...

To validate the accuracy of numerical modeling tools that profile stress distributions in long wall mining structures by comparing them to measured data. Use automation tools to analyze the vast data output from the models. Create contour plots to depict stress distributions and stack plots to …

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Extending empirical evidence through numerical modelling ...

synergy between empirical and numerical models has helped to improve the effectiveness of both types of models. This paper discusses modelling in engineering design and examines the various types of models that are used in rock engineering. The synergy between empirical and numerical models is discussed, and two case studies are presented in ...

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Numerical Modeling for Engineering Analysis and Designing ...

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.

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A comparison of limit equilibrium and T numerical ...

impact of using numerical modelling instead of the traditional LE techniques in evaluating the probability of slope failure. The difference in the overall assessed risk, in terms of economic impact, for the mining operation is then evaluated. With numerical models, approximate methods are …

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Mining Engineering - Courses | School of Graduate Studies

This course introduces numerical modelling methods used in mining geomechanics. The basic theory and use of finite difference, finite element, boundary element continuum and discrete particle discontinuum codes will be reviewed with the objective of providing an understanding of the mathematical basis for each method, and their major differences.

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CDC - Mining - Ground Stress in Mining Part 2: Calibrating ...

In cooperation with two mining companies in the western United States, NIOSH researchers compiled large data sets of measurements and observations during mining. The purpose of these case studies was to determine ways to calibrate and verify models constructed with various modeling …

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CASE STUDY: TRIAXIAL APPARATUS & NUMERICAL …

BURSA, DEPARTMENT OF NUMERICAL ANALYSIS, GEOTEKO. CASE STUDY: TRIAXIAL APPARATUS & NUMERICAL MODELLING GEOTEKO is a group of companies in Poland offering solutions to complex geotechnical problems. GEOTEKO has over 25 years of experience working on over 5000 projects, with the likes of KGHM Polska Miedz S.A., ORLEN S.A., Metro Warszawskie, ARUP,

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Edumine | Groundwater Modelling for Mining 2 - Numerical ...

Oct 31, 2019· The use of numerical groundwater models enables decision makers to study and evaluate potential impacts of large and complex mining projects. Sophisticated models and modelling platforms are, however, no guarantee of good modelling practice. The complexities of groundwater models used for impact assessment may even lead to misuse and/or ...

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Mine Design and Numerical Modeling Laboratory - McGill ...

In this study, numerical modelling approaches are developed using the finite difference code FLAC3D 7.0. Critical factors such as in-situ stress regime, major geological structures, mining sequences, slanted surface topography and surcharge load due to the tailings storage facility are considered using 3-dimensional, elastoplastic analysis with ...

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Case Study Results - EcoShape

Case Study Results. This section describes the results of the demonstration case: the probabilistic methodology is worked out for the effects of a fictitious dredging project on a population of Sandwich Terns. The impact of two different dredging scenarios is considered: Far field effects of large dredging project, which takes several years and;

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Predictive targeting in Australian orogenic-gold systems ...

3D numerical modelling of coupled deformation and fluid flow into the task of orogenic-gold-system explora-tion. Two case studies illustrate the positive impact that numerical modelling of geological processes can have on the mineral exploration value proposition, through its potential to improve prospect, target and detection technique ...

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A numerical study of the mining‐induced energy ...

To solve such a problem, this paper presents a case study on the mining‐induced energy redistribution in a coal seam adjacent to an extracted coal panel using a numerical method. In the numerical model, the double‐yield model was used to simulate the gob material with consideration of goaf reconsolidation, and the results of the global ...

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Case Studies of Parametric Assessments Using Numerical ...

Jun 23, 2019· Parametric assessments using numerical models are not new in rock mechanics and described as far backs as the 1980's. However, the uptake of parametrical assessments using numerical modelling for design and sensitivity assessments in the mining industry has not kept pace with advances in computing power.

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Predictive Numerical Modelling - RGS Environmental ...

Latrobe Valley pit lake water balance and water quality modelling. RGS was engaged by LVRRS - DELWP to undertake a scoping study in consultation with a panel of experts to develop a framework for modelling the geochemical and limnological evolution of mine pit lakes and identify critical data gaps for follow-up investigation; and, produce a GoldSim pit lake water balance and water quality ...

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Numerical modeling in the mining industry: CADFEM and ...

The International Congress on the Enrichment of Minerals and the exhibition IMPC-2018 was held September 17-21, 2018 in Moscow. More than 1000 participants from 40 countries presented 80 thematic sessions and 440 reports. The event was organized by the Russian Academy of Sciences (RAS) with the support of the Ministry of Industry and Trade and […]

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Numerical modeling of open pit (OP) to underground (UG ...

The paper is, therefore, a critical review of the hitherto proposed methods of predicting the impact of underground operation (UG) on open pit mining (OP), illustrated with selected examples of case studies on OP-UG interaction, followed by an original experiment based on numerical modeling method. This is first such study for the genuine ...

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Paper: The improved unified constitutive model: a fine ...

Vakili, Α, Sandy, M & Albrecht, J 2012, 'Interpretation of non-linear numerical models in geomechanics-a case study in the application of numerical modelling for raise bored shaft design in a highly stressed and foliated rock mass', Proceedings of the 6th International Conference and Exhibition on Mass Mining, Canadian Institute of Mining ...

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International Journal of Mining Science and Technology

Numerical modeling Failure mechanisms abstract Thispaper presents three case studies comprising failure mechanisms in phyllite mine slopes at Quadrilá-tero Ferrífero, State of Minas Gerais, Brazil. Numerical modeling techniques were used in this study. Fail-

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Strength, fallouts and numerical modelling of hard rock …

mining progress. A parametric study was conducted in which strength properties, location, and shape of the footwall drift were varied. The modelling results were sensitive to the shape of the drift. The location of the predicted fallouts in the model was in good agreement with the location of observed fallouts for the case …

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Groundwater in Mining – Trade Essential

Our Trainer has 22 years' experience in hydrogeology and groundwater management.She has completed numerous groundwater assessment studies on infrastructure, mining, contaminated land and agricultural projects. Her work includes practical aspects through to conceptual model development and evaluation of environmental impacts using analytical and numerical modelling and environmental ...

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(PDF) Probabilistic analysis of open stope stability using ...

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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Discrete element modeling of a mining-induced rock slide ...

Sep 21, 2016· Slopes are subjected to stress redistributions during underground mining activities, and this may eventually cause deformation or landslide. This paper takes Madaling landslide in Guizhou Province, China as a case study to investigate the failure mechanism and its run-out behaviours by using discrete element method. Previous qualitative analysis indicated that the slope experienced four …

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Migration of sand mining pit in rivers: An experimental ...

Feb 01, 2021· Case study. After verifying the numerical model against experimental data, the migration of mining pit in Helleh River in Bushehr province was considered as a case study. The length of the study area was 2.5 km upstream and downstream of a village near Abpakhsh district.

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Numerical modelling of complex slope deformations

Two numerical modeling programs FLAC (Fast Lagrangian Analysis of Continua) and UDEC (Universal Distinct Element Code) were used in this thesis. Three main groups of problems were investigated: (1) The analysis of deformation associated with rigid jointed rocks overlying relatively weak layers including a case study involving deformation taking ...

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The Use of Numerical Modeling for Underground Coal Mine ...

Jan 01, 1993· The technique has recently been extended to handle multiple seam extraction. 28.4 CASE STUDIES The validity of complex numerical models can only be tested by comparison with measurements of prototype performance. This section describes two major case studies that the author has been involved in.

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