2017-1-28 · On numerical modeling of subsidence induced by mining M. Al Heib INERIS, Labiratoire de Mechanique des Terrains Ecole des Mines de Nancy, Parc de Saurupt, 54042, NANCY, France A.M. Linkov Institute for Problems of Mechanical Engineering, Russian Academy of Sciences, 61 Bol''shoy Pr, V. O., St-Petersburg, 199178, Russia V. V. Zoubkov
2016-2-19 · slope stability analysis using numerical modelling a thesis submitted in partial fulfillment of the requirements for the degree of bachelor of technology in mining enginering by sandeep suman 111mn0406 department of mining engineering national institute of technology rourkela - 769008 2014-15
2015-6-5 · This paper describes a three-dimensional numerical modelling technique for the simulation of rock preconditioning by destress blasting in hard rock mining operations at depth. Rock preconditioning is commonly practised in high-stress environments as a means for the alleviation of rockburst events during production drilling and blasting.
2012-10-10 · 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, …
2019-4-9 · Numerical modelling of mine backﬁll material needs special attention as the numerical model must behave realistically and in accordance with the site conditions. This paper discusses a numerical modelling strategy for modelling mine backﬁll material. The modelling strategy is studied using a case study mine from Canadian mining industry.
2007-3-16 · Numerical model simulation of the subsidence induced by solution mining cavities 233 M.Guarascio, M.Fabris & E.Castelli Interaction effects and stability aspect in contiguous seam mining 241 AK.Sinha & S.B.Srivastava Analysis of the long-term stability of an ancient room and abandoned pillar mine: Impact 245 of the water level F.Vinkler &J.P ...
2021-1-22 · modelling for the South African mining industry, with particular reference to the gold and platinum industries. It also covers a research sub-project investigating the use of expert systems and intelligent user interfaces to aid in the process of numerical modelling. Although the bulk of the project involved the production of the numerical ...
2020-10-13 · 2.9 Salient Aspects of Numerical Modelling 75 2.9.1 Drain Efficiency by Pore Pressure Dissipation 76 2.9.2 Deformation as a Stability Indicator 77 2.10 Summary 79 3 THEORETICAL BACKGROUND 82 3.1 Prediction of Smear Zone Caused by Mandrel Driven Vertical Drains using Cavity Expansion Analysis 82 3.1.1 General 82
2018-9-21 · 2.1.4 Commercial packages used for numerical modelling in mining 18 2.2 Selection of suitable methods 19 2.3 Benefits of using numerical modelling techniques 22 2.4 Need of three dimensional modelling in Rock mechanics 22 2.5 Problem solving approach using a Numerical model 22 3 Constitutive models and parameter selection. 24
Courses. Applied Computation and Numerical Modelling MSc. Applied Computation and Numerical Modelling MSc, 1-2 years, full-time. Start date: September 2021. Course information. UK/EU fee £11,110. International fee £20,825. Taught by School of Mathematics and Actuarial Science.
2015-4-13 · all numerical models. F3D is a continuum code with yield criteria suitably flexible for modelling the full stress/strain response of coal type materials. Only a quarter section of the bord and pillar array needs to be modelled, once symmetry conditions are enforced in both
2020-7-15 · Numerical modelling of large landslides stability and runout G. B. Crosta1, S. Imposimato2, and D. G. Roddeman3 1Universita degli Studi di Milano - Bicocca, Piazza della Scienza 4, 20126 Milano, Italy` 2Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy 3FEAT - Finite Element Application Technology, The Netherlands
1987-1-1 · SUMMARY. This paper presents an overview of the U.S. Department of the Interiors'' Bureau of Mines research program regarding development of numerical modeling procedures to assist mine operators in 1) solving basic ground control problems common to the mining industry, and 2) designing optimum mine layouts to ensure safe, productive, and cost-efficient operations.
Numerical Modelling and Rock Engineering. 2.1. Numerical Modelling. Numerical modelling has been a very useful tool to design, analysis and planning engineers for dec-ades. Modelling computers software have been used to collect data, create models, run and inter-pret results. According to (Surdahl, 2008) numerical modelling definition may vary ...
2015-5-18 · Numerical Modelling of Mining Subsidence A dissertation submitted by Mr Kieran Robert. Seccombe In fulfilment of the requirements of ENG4111/4112 Research Project Towards the degree of Bachelor of Engineering (Civil) Submitted: 30/10/2014 University of Southern Queensland
The modelling of construction processes, which are frequently associated with large deformations of the soil and with strong changes in the structure of the soil around the construction plant, in the case of, for example, a drill, a bit, a vibrator, or an excavation tool, requires sophisticated and new methods in numerical modelling.
2016-10-19 · NUMERICAL MODELING OF OPEN PIT (OP) TO UNDERGROUND (UG) TRANSITION IN COAL MINING PHU MINH VUONG NGUYEN, ZBIGNIEW NIEDBALSKI AGH University of Science and Technology. E-mail: [email protected] .pl; [email protected] .pl Abstract: The primary objective of the present paper is an attempt at evaluating the influence of sub-level caving operations on the
Strategic versus Tactical Approaches in Mining 2011, Perth, Australia 85 Simple calibration of the extension strain criterion for its use in numerical modelling V. Louchnikov Coffey Mining Pty Ltd, Australia Abstract Calibrating numerical models is generally considered to …
2021-3-30 · DEPARTMENT OF MINING ENGINEERING M.TECH (MINE PLANNING) PTPG SYLLABUS 1 | Page SEMESTER – III NUMERICAL MODELLING IN MINING UNIT I Introduction to elastic and plastic models : Fundamentals, elastic, plastic, homogeneous and isotropic, non‐linear elastic and elastoplastic models.
2019-6-28 · 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.
Numerical modelling has been used for more than 30 years to assess the seismic potential in underground excavations. However, the outcome from modelling tools rarely considers the probabilistic nature of seismic hazards. This paper presents a method to generate a distribution of synthetic seismic data based on numerical modelling results.
The purpose of this review paper is to present the techniques, advances, problems and likely future developments in numerical modelling for rock mechanics. Such modelling is essential for studying the fundamental processes occurring in rocks and for rock engineering design. The review begins by explaining the special nature of rock masses and the consequential difficulties when attempting to ...
2021-8-24 · Numerical modelling has become one of the most widely used design tools in geomechanics and rock engineering. RockEng has extensive experience in advanced geomechanical modelling with numerous software packages – this allows our team to ensure that the right tools are applied to any numerical modelling project.
As numerical modelling technique is getting popular in mining industry, practitioners'' thorough understanding of not only modelling software skills but also mathematics theories behind modelling mechanism as well as ability to interpret modelling results are getting more important.
2011-3-20 · four deep longwall mines. A 3D numerical model of longwall mining is then described and the results obtained from its use are presented. The strain-softening constitutive behavior and non-linearly elastic gob compaction models used for the modeling studies are discussed. The differences in modeling of yielding pillars between using strain
2007-3-16 · 5. Open Pit Mining / Mines a del ouvert Numerical modelling of buckling and ploughing slope instability in surface coal mining 176 E. Eberhardt & D. Stead Interpretation of non-structural slope failure in open-pit mining - A numerical 186 modelling approach CM. Tsomondo & H.S. Mitri Toppling and sliding of blocks under dynamic loading 198 M.Y ...
2015-5-18 · The department of mineral resources requires numerical models for subsidence to accurately assess the viability of mining in that associated area. Through the use of FLAC 2D it was possible to develop a methodology that was applicable to all single longwall scenarios.
2016-9-8 · simulation, mining tool optimization and design and mining machine performance evaluation. (Received, processed and accepted by the Chinese Representative Office.) Key Words: Seabed Massive Sulfide, Seabed Mining Machine, Laboratory Mechanical Tests, Excavation Cutter, Discrete Element Model, Numerical Simulation 1. INTRODUCTION
2020-10-13 · NUMERICAL MODELLING OF MINING SUBSIDENCE, UPSIDENCE AND VALLEY CLOSURE USING UDEC . A thesis submitted in fulfillment of the requirements for the award of the degree . DOCTOR OF PHILOSOPHY from UNIVERSITY OF WOLLONGONG by Walter Keilich, BE Hons (Mining) SCHOOL OF CIVIL, MINING AND ENVIRONMENTAL ENGINEERING 2009
Numerical Modelling of Mining Near and Beneath Tailings Dam M.A. Coulthard and G.E. Holt various interfaces are given in Table 3. The friction angle for the floor of coal seams was based on back analysis of failure on coal floors, whilst that for the longwall panels was the minimum of those for the rock
2009-8-22 · Numerical modelling of the MILP formulation for open pit production scheduling . Hooman Askari-Nasab and Kwame Awuah-Offei. 1. Mining Optimization Laboratory (MOL) University of Alberta, Edmonton, Canada . Abstract . Development of new optimization techniques and uncertainty quantification for long-term
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 ...
2012-8-30 · of the numerical model. Small-scale models of coal mine entry behavior may require logging geologic layers as small as 50 mm. Larger-scale coal mine models for subsidence prediction may require less logging detail. Of particular importance to note are the soft clay layers or major bedding planes with weak infilling as indicated in figure 1.
2021-4-14 · varying amounts of service water used at different periods in the mining cycle. Thus numerical approximations are required to model heat flow in mines. This paper describes recent developments in the simulation of heat flow into mine excavations. In particular, models developed for underground dams and stopes are described in detail.
Our use of advanced numerical models is based on extensive operational and consulting experience and understanding of analogue situations. We have carried out numerical analyses for projects at all stages from initial mine development through operations to mine closure. 2D and 3D stress-strain analysis under static and dynamic conditions using ...