Read case studies on mine design, modelling, evaluation an maintenance of open pit and underground mines with Maptek Vulcan mining software [Chat Online] numerical modelling case studies in mining. Spatio-Temporal Modelling of Dust Transport over Surface Mining ,- numerical modelling case studies in mining ,6 Jun 2008,, of the GIS, we present
Sep 01, 1999· 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
Multiphysics numerical simulation examples Case studies from various industries and customer references. Numerical modelling and computer simulation has evolved very quickly in the past decades. Hardware have gained speed and power whilst specialised softwares have increased their capabilities for representing numerous phenomena.
This study, therefore, aims to analyse the impacts of underground mining on the stability of slopes by using numerical modelling. A coal mining induced landslide at Nattai North, Australia, is
Dec 25, 2019· 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
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
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
Sep 01, 2018· Numerical modelling was conducted using two and three dimensional distinct element models (UDEC and 3DEC) based on a geotechnical conditions of an Australian underground coal mine. The formation process of reverse fault was simulated to evaluate the stress characteristics in the coal seam and the immediate roof and floor near the fault.
Calibrating Numerical Modeling Tools for Stress Profiles in Longwall Mining Dr. Mark K. Larson, a mining engineer at the National Institute for Occupational Safety and Health (NIOSH),uses Origin in his work as Principal Investigator for a research project on longwall mining.
Oct 01, 2009· Model verification through back analysis of field studies and published case studies. Task 5: Design Guidelines (1/2012 6/2014): Apply verified numerical models to analyze support systems under various geologic and loading conditions to investigate specific design questions. Evaluation of results of field studies, current support practices
Jul 04, 2020· In the case of numerical modelling, some of the available criteria used to evaluate hangingwall overbreak do not include the intermediate principal stress around the stope and/or the rock mass geotechnical characteristics. In this study, a new criterion for numerical modelling is proposed to estimate the hangingwall overbreak in open stopes.
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
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
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,
Nov 01, 2014· This paper presents three case studies comprising failure mechanisms in phyllite mine slopes at Quadrilátero Ferrífero, State of Minas Gerais, Brazil. Numerical modeling techniques were used in this study. Failure mechanisms involving discontinuities sub parallel to the main foliation are very common in these mines.
need to be examined by scientific studies through numer-ical modelling in a worst-case simulation and confirmed for the number of advance or rounds of blast that can be done without drilling rock bolts and grouting. Numerical modelling Section A–A′ in Figure 1 was considered for numerical modelling.
Numerical modeling gives a sound understanding for solving complex engineering problems related to the tunnel shape, size, mine layout, and design of roof support system to consent consistent and technoeconomic feasible performance of mining structures throughout their planned life of operations . The numerical modeling in rock engineering is
The scale effect of rock joint shear behavior is an important subject in the field of rock mechanics. There is yet a lack of consensus regarding whether the shear strength of rock joints increases, decreases, or remains unchanged as the joint size increases. To explore this issue, a series of repeated and enlarged numerical joint models were established in this study using the particle flow
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
Apr 01, 2003· Also considered is the characterization of rock masses which is necessary to provide input to the numerical models, and there is illustration of how enhanced understanding is obtained through the use of such models. 2.1. Numerical methods for modelling continuous and discontinuous rock masses. In numerical modelling of engineering problems
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
PDF (660 K) PDF-Plus (662 K) MONITORING AND MODELLING OF GROUND SUBSIDENCE IN MINING AREAS CASE STUDIES. Adam Chrzanowski, 1 Anna Szostak-Chrzanowski, 1 Geoffrey Bastin, 1 James Lutes 1 1 Department of Geodesy and Geomatics Engineering, University of New Brunswick Fredericton, New Brunswick. Published on the web 22 July 2019.
Numerical models have an advantage over empirical methods when it comes to understanding the physics of a rock mechanics problem such as caving geomechanics. In using numerical modelling, various hypotheses can be tested and compared to the actual behaviour of the rock mass response to caving. Predicting rock mass caveability remains a challenge.
Jan 01, 2013· Li, Ximeng (2013). Numerical Modeling of Stress Distribution of Gateroads Subjected to Dynamic Pressure of Longwall Mining in the Immediate Overlying Seam, a Case Study. 32th International Conference on Ground Control in Mining Citation Downloads Reference Manager (RIS) SpreadSheed (CSV)
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
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
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.
PDF (660 K) PDF-Plus (662 K) MONITORING AND MODELLING OF GROUND SUBSIDENCE IN MINING AREAS CASE STUDIES. Adam Chrzanowski, 1 Anna Szostak-Chrzanowski, 1 Geoffrey Bastin, 1 James Lutes 1 1 Department of Geodesy and Geomatics Engineering, University of New Brunswick Fredericton, New Brunswick. Published on the web 22 July 2019.
Jan 01, 2013· Li, Ximeng (2013). Numerical Modeling of Stress Distribution of Gateroads Subjected to Dynamic Pressure of Longwall Mining in the Immediate Overlying Seam, a Case Study. 32th International Conference on Ground Control in Mining Citation Downloads Reference Manager (RIS) SpreadSheed (CSV)
using numerical modelling instead of empirical methods, because numerical modelling can test various hypotheses that can be compared to documented cases. However, e
Numerical models have an advantage over empirical methods when it comes to understanding the physics of a rock mechanics problem such as caving geomechanics. In using numerical modelling, various hypotheses can be tested and compared to the actual behaviour of the rock mass response to caving. Predicting rock mass caveability remains a challenge.
Oct 01, 2009· Model verification through back analysis of field studies and published case studies. Task 5: Design Guidelines (1/2012 6/2014): Apply verified numerical models to analyze support systems under various geologic and loading conditions to investigate specific design questions. Evaluation of results of field studies, current support practices
The scale effect of rock joint shear behavior is an important subject in the field of rock mechanics. There is yet a lack of consensus regarding whether the shear strength of rock joints increases, decreases, or remains unchanged as the joint size increases. To explore this issue, a series of repeated and enlarged numerical joint models were established in this study using the particle flow
In this paper, a comparative study has been made between different algorithms to find the numerical solutions of the fractional-order clock chemical model (FOCCM). The spectral collocation method (SCM) with the shifted Legendre polynomials, the two-stage fractional Runge–Kutta method (TSFRK) and the four-stage fractional Runge–Kutta method (FSFRK) are used to approximate the numerical
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.
Case studies of simultaneous mining and mineral processing optimization applied to platinum and nickel operations In the case studies the optimization work was applied to a portion or, in one case, Resource model, operational, test work, and study information was then
Maintaining stable mining excavations and limiting unplanned overbreak are some of the main problems in narrow vein mining. The use of numerical modeling became a popular method for this since it is capable of examining stress patterns and identifying rockmass failure. Three-dimensional models of the case study mining block are constructed
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
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