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

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Numerical Modeling for Yield Pillar Design: A Case Study ...

2014-1-1  Hence, the numerical modeling techniques will be used to back-analyze this case to find a yield pillar design principle for bump control in the specified coal

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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

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Numerical modelling of the MILP formulation for open

2009-8-22  The numerical modeling techniques are illustrated in details and a mining case study with around twenty thousand blocks over seventeen periods have been scheduled. 1.

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Numerical modelling approach for mine backfill

2017-7-24  Numerical modelling of mine backfill material needs special attention as the numerical model must behave realistically and in accordance with the site conditions.

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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

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Strategies for surface crown pillar design using numerical ...

2021-2-1  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

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FLAC and Numerical Modeling in Geomechanics

2007-3-16  3D numerical modeling and study of mine tremors induced by coal mining in the vicinity 379 of major faults - A case study MA Kwasniewski J. -A Wang

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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

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Case study: Discrete element modeling of wear in mining ...

2019-7-15  Different types of numerical models have been used to estimate wear on mining machinery for processes such as excavation, comminution, or transport of ore. These

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Numerical modelling of undermined river valleys - a case

Ground subsidence due to mining is a common dilemma confronting the underground coal mining industry. The effects of underground longwall mining on river valleys have come under scrutiny, especially when mining is located underneath catchment areas. As public awareness of mining impacts on the environment increases, there is the need to develop damage mitigation strategies.

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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

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Influence of faulting on a mine shaft - a case study: part ...

The influence of faulting and mining sequence on the stability of the main mine shaft were investigated by means of field investigations and numerical modelling. This paper concentrates on the numerical modelling performed as part II of this project. It presents exhaustively the methodology used to build the numerical model and presents the ...

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

Numerical Modeling in Civil and Mining Geotechnical Engineering. ... This paper describes a case study of surface subsidence in the Hongling Lead-Zinc Mine. Hongling Lead-Zinc Mine is located in Inner Mongolia, China, about 240 km away from the border between China and Mongolia.

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Numerical Modelling Study of Low-rise Mining at the Tara

Abstract [en] The following report is the results of a master thesis project performed on the behalf of Boliden Tara Mines. The work includes a numerical modelling study with the main purpose to evaluate the room- and pillar stability for the mining method "drift-and-slash" mining currently used in the Tara Mine when mining in thin, low-rise lenses.

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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 model ...

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Numerical modelling of the MILP formulation for open

2009-8-22  numerical modeling techniques are illustrated in details and a mining case study with around twenty thousand blocks over seventeen periods have been scheduled. 1. Introduction Mixed integer linear programming mathematical optimization have been used by different ...

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SLOPE STABILITY ANALYSIS USING NUMERICAL

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

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THREE DIMENSIONAL NUMERICAL MODELLING OF

2010-7-21  Approval of the thesis: THREE DIMENSIONAL NUMERICAL MODELLING OF DISCONTINUOUS ROCKS BY USING DISTINCT ELEMENT METHOD submitted by ARMAN KOÇAL in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mining Engineering Department, Middle East Technical University by; Prof. Dr. Canan Özgen

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Groundwater Modeling in Mining: A Case Study

2020-7-3  Objectives of groundwater modelling guidelines are: 1. to promote a consistent and sound approach to development of groundwater flow and solute transport models. 2. to include all types of groundwater models and modelling approaches 3. to address a range of groundwater problems; and 4. to support decision-making processes in management of ...

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Numerical modelling of undermined river valleys - a case

Ground subsidence due to mining is a common dilemma confronting the underground coal mining industry. The effects of underground longwall mining on river valleys have come under scrutiny, especially when mining is located underneath catchment areas. As public awareness of mining impacts on the environment increases, there is the need to develop damage mitigation strategies.

Get Price

Numerical Modelling Study of Low-rise Mining at the Tara

Abstract [en] The following report is the results of a master thesis project performed on the behalf of Boliden Tara Mines. The work includes a numerical modelling study with the main purpose to evaluate the room- and pillar stability for the mining method "drift-and-slash" mining currently used in the Tara Mine when mining in thin, low-rise lenses.

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"Numerical modelling for estimation of first weighting ...

Publication Details. H. Manteghi, K. Shahriar and R. Torabi, Numerical modelling for estimation of first weighting distance in longwall coal mining - A case study, 12th Coal Operators' Conference, University of Wollongong the Australasian Institute of Mining and Metallurgy, 2012, 60-68.

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

A coal mine located in Yanzhou city, Shandong Province, China, was selected for this case study. A meticulously validated numerical model was developed to investigate the stress changes across the longwall pillar with various sizes. In order to improve the reliability of the numerical modeling, a calibration procedure is undertaken to match the ...

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An Integrated Modelling and Numerical Simulation for

An Integrated Modelling and Numerical Simulation for Rock Mass Assessment in Underground Mines ... of the suite of mining cavities is then created in the mine design software Surpac. A new and integrated approach to determine the stability of the underground cavity based on the DTM and FLAC models is presented. A case study conducted in an ...

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Groundwater Modeling in Mining: A Case Study

2020-7-3  Objectives of groundwater modelling guidelines are: 1. to promote a consistent and sound approach to development of groundwater flow and solute transport models. 2. to include all types of groundwater models and modelling approaches 3. to address a range of groundwater problems; and 4. to support decision-making processes in management of ...

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Numerical Model Calibration for Simulating Coal Pillars ...

2012-8-30  mining horizon and the properties of the fully caved and partially caved material. Nevertheless, numerical models have found wide acceptance in coal mine design, in spite of the diffculties and challenges associated with model development and calibration. This paper addresses the need for a basic set of model

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THREE DIMENSIONAL NUMERICAL MODELLING OF

2010-7-21  Approval of the thesis: THREE DIMENSIONAL NUMERICAL MODELLING OF DISCONTINUOUS ROCKS BY USING DISTINCT ELEMENT METHOD submitted by ARMAN KOÇAL in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mining Engineering Department, Middle East Technical University by; Prof. Dr. Canan Özgen

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Predictive targeting in Australian orogenic-gold systems ...

2018-11-7  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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Numerical modelling of the displacement and

2013-1-30  Numerical modelling of the displacement and deformation of embedded rock bodies during salt tectonics: A case study from the South Oman Salt Basin SHIYUAN LI1, STEFFEN ABE1*, LARS REUNING2, STEPHAN BECKER2, JANOS L. URAI1,3 PETER A. KUKLA2 1Structural Geology, Tectonics and Geomechanics, RWTH Aachen University,

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