numerical modelling theories in mining

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 ...

Numerical Modeling in Mine Structure Design -

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 of Mine Workings

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 ...

(PDF) An overview of numerical modelling applied to deep ...

An Overview of Numerical Modelling Applied to Deep Mining . L.A.M Castro . Golder Associates, Mississauga, ON, ... tion of numerical modelling to investigate the pote n-tial for strainburst ...

Numerical modelling - QueensMineDesignWiki

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 approach for mine backfill

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.

Three Dimensional Numerical modelling Of Coal Mine ...

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

(PDF) Numerical modelling of detonation in mining face

2015-9-8 · Numerical modelling of detonati on in mining face cut-holes . Łukasz Mazurkiewicz 1, Jerzy Małachowski 2, Paweł Baranowski 3, Krzysztof Damaziak 4. Witold Pytel 5, Piotr Mertuszka 6.

Special Issue "Numerical Modeling in Civil and Mining ...

2021-4-30 · 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.

Numerical Modelling - an overview | ScienceDirect Topics

Numerical modeling is at present widely used to simulate the behavior of rockmass with or without rockbolting in various geotechnical projects. The numerical methods used in modeling of geomaterials include finite element method (FEM), boundary element method (BEM), finite difference method (FDM), and discrete element method (DEM).

Numerical modelling approach for mine backfill |

2017-7-24 · Numerical modelling is broadly used for assessing complex scenarios in underground mines, including mining sequence and blast-induced vibrations from production blasting. Sublevel stoping mining methods with delayed backfill are extensively used to exploit steeply dipping ore bodies by Canadian hard-rock metal mines. Mine backfill is an important constituent of mining process. Numerical ...

Numerical modelling approach for mine backfill

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.

An Overview of Numerical Modelling Applied to Deep

An Overview of Numerical Modelling Applied to Deep Mining L.A.M Castro Golder Associates, Mississauga, ON, Canada ... tion of numerical modelling to investigate the poten-tial for strainburst ...

Numerical modelling calculation of probabilistic seismic ...

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.

NUMERICAL MODELLING OF MULTIPLE-SEAM COAL

2021-4-10 · Numerical models showing how the seams interact with each other were developed based on 3D models representing the rock mass containing the two coal seams, mine workings, and mining voids. To describe rock behaviour under stress, the Mohr-Coulomb model was used. Developing three rock mass models made it possible to describe both independently and

Special Issue "Numerical Modeling in Civil and Mining ...

2021-4-30 · 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 ...

How numerical modelling can fill the gaps of the empirical ...

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.

Three Dimensional Numerical modelling Of Coal Mine ...

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

A numerical modelling study of longwall face stability in ...

Wang, J. (2017) ‘A numerical modelling study of longwall face stability in mining thick coal seams in China’, Int. J. Mining and Mineral Engineering , Vol. 8, No. 1, pp.35–55.

Numerical modelling of fractures induced by coal mining ...

2017-5-9 · numerical modelling to become a useful technique for the investigation Numerical modelling of fractures induced by coal mining beneath reservoirs and aquifers in China Xiong Wu1*, Xiao-Wei Jiang1, Yu-Fu Chen1, Xiao-Lei Wang1 & Shu-Hong Tan2

An Overview of Numerical Modelling Applied to Deep

An Overview of Numerical Modelling Applied to Deep Mining L.A.M Castro Golder Associates, Mississauga, ON, Canada ... tion of numerical modelling to investigate the poten-tial for strainburst ...

Numerical modelling approach for mine backfill

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.

Numerical Modelling of Heat Flow in Mines - VUMA

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.

Three Dimensional Numerical modelling Of Coal Mine ...

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

Field Measurement and Numerical Modelling Study on

2021-4-26 · Mining-induced subsidence is a great concern for environmental protection in underground mining areas in China and all over the world. In view of the fact that the research on land degradation above underground coal mines are completely or partially independent of coal mining activity and the fact that the mechanism behind mining-induced subsidence has not been well understood, this study ...

Numerical modelling calculation of probabilistic seismic ...

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.

NUMERICAL MODELLING OF MULTIPLE-SEAM COAL

2021-4-10 · Numerical models showing how the seams interact with each other were developed based on 3D models representing the rock mass containing the two coal seams, mine workings, and mining voids. To describe rock behaviour under stress, the Mohr-Coulomb model was used. Developing three rock mass models made it possible to describe both independently and

Mine Design and Numerical Modeling Laboratory - McGill ...

2020-11-7 · 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. This paper will focus on creating a 3-dimensional constitutive numerical ...

NUMERICAL MODELLING OF ROCK MASS

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,

NUMERICAL MODELING OF YIELDING CHAIN PILLARS IN

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

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