numerical modelling case studies in mining


Posted on April 25, 2019



Three Dimensional Numerical modelling Of Coal Mine . - Rocsciencetowards the degree of Master of Science by advanced study in Mining Resource . The model was able to predict the larger stress damaged yield zones for the stress perpendicular case than for stress parallel case. The analysis was extended by varying the . Numerical modelling procedures for underground excavations.numerical modelling case studies in mining,Numerical Model Calibration for Simulating Coal Pillars, Gob . - CDCof numerical model calibration and validation was carried out . Numerical models are finding increasing application as a tool for underground mine design because of their versatility and the ever increasing computational power available to mine ... determined stress distributions from published case studies from.


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Applications of numerical modelling in underground mining and .

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 . In each case, results from nonlinear stress analyses can be used to guide the design of excavations and rock support mechanisms.

numerical modelling case studies in mining,

Applications of Numerical Modelling for Strata Control in Mines

Dec 21, 2017 . in development of numerical modelling softwares,. generally used for study of various issues in mining. It discusses their relative merits and limitations. The. paper also illustrates the results of a few real case. studies that have been addressed by the authors in. past few years. These illustrations highlight the.

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

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. A meticulously validated numerical model was.

Ground Support Case Studies Grouting and Excavation Support in .

Mining in Extreme Squeezing Conditions at the Henty. Mine – Roache, B. A numerical modelling case study - correlation of ground support instrumentation data with a three dimensional inelastic model – Sweby, G.J., Dight, P.M.,. Potvin, Y. and Sharrock G. Tunnelling and Reinforcement in Heterogeneous. Ground–A Case.

Extending empirical evidence through numerical modelling in rock .

The first case considers the question of the impact of large angular discontinuities on the stability of pillars in underground line mines. The second case study describes how numerical models were used to quantify the relationship between coal mine entry stability and the ratio of horizontal to vertical stress in the.

Numerical Modelling of Mechanical Behavior of Coal Mining . - MDPI

Jul 15, 2017 . Numerical Modelling of Mechanical Behavior of Coal Mining Hard Roofs in Different Backfill Ratios: A Case Study. Meng Li. , Nan Zhou * , Jixiong Zhang. and Zhicheng Liu. Key Laboratory of Deep Coal Resources Mining, School of Mines, Ministry of Education of China, China University of Mining.

Applications of Numerical Modelling for Strata Control in Mines

Dec 21, 2017 . in development of numerical modelling softwares,. generally used for study of various issues in mining. It discusses their relative merits and limitations. The. paper also illustrates the results of a few real case. studies that have been addressed by the authors in. past few years. These illustrations highlight the.

NUMERICAL MODELING OF COAL MINES WITH A . - statler.wvu.edu

The LAMODEL program is initially checked for mathematical accuracy and then it is applied to several case studies in order to evaluate the accuracy and utility of the laminated overburden model in realistic situations. The first case study is an analysis of two different gateroad designs at a deep cover longwall mine where.

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

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. A meticulously validated numerical model was.

Ground Support Case Studies Grouting and Excavation Support in .

Mining in Extreme Squeezing Conditions at the Henty. Mine – Roache, B. A numerical modelling case study - correlation of ground support instrumentation data with a three dimensional inelastic model – Sweby, G.J., Dight, P.M.,. Potvin, Y. and Sharrock G. Tunnelling and Reinforcement in Heterogeneous. Ground–A Case.

Numerical Modelling of Mechanical Behavior of Coal Mining . - MDPI

Jul 15, 2017 . Numerical Modelling of Mechanical Behavior of Coal Mining Hard Roofs in Different Backfill Ratios: A Case Study. Meng Li. , Nan Zhou * , Jixiong Zhang. and Zhicheng Liu. Key Laboratory of Deep Coal Resources Mining, School of Mines, Ministry of Education of China, China University of Mining.

Numerical modelling approach for mine backfill - Indian Academy of .

Jul 24, 2017 . modelling strategy is studied using a case study mine from Canadian mining industry. In the end, results of numerical model parametric study are shown and discussed. Keywords. Underground mining; backfill; sublevel stoping; FLAC3D; RS2. 1. Introduction. Canadian metal mines have adopted sublevel.

Pillar Burst Assessment Based on Large-scale Numerical Modeling .

Stress concentration is a direct result of stress redistribution around an excavation, that may lead to rock bursting under specific geomechanical conditions. This paper presents a case-study of a rockburst that took place in the shaft station area of the Provence coal mine in Southern France. The mined coal seam has a 2.5 m.

Numerical modelling for estimation of first . - Research Online - UOW

Feb 17, 2012 . research-pubsuow.edu. 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,.

Three ways to assess mining-induced fault instability using . - Map3D

A case history for a slipping fault is used to assess the possibility of mininginduced slip. This problem was studied in detail for 10 years (Hudyma, 1996, Bruneau, 2000, Bruneau et al., 2003, Mincad Systems, 2003, 2006), without providing a satisfactory numerical model to link the advancing mining to the observed fault slip.

Linked Optimal Reactive Contaminant Source Characterization in .

However, linking robust numerical models to simulate the transport processes of reactive chemical contaminant species in aquifers involving complex and highly . The linked simulation-optimization based methodology is evaluated for a contaminated former mining site in Queensland, Australia, as a limited case study.

Numerical Modeling of Room-and-Pillar Coal Mine . - VTechWorks

Feb 18, 2016 . the ground response curve really means when applied to mining, and Will for his time and effort payed into catching me up on all the ins and outs of our case study. I appreciate the support I've received from the members of my committee. I've learned a lot from each of you, and it's been a pleasure working.

groundwater flow modelling applications in mining hydrogeology

Abstract. In the presented paper some specific features and problems of numerical modelling applications in mining environment are briefly discussed. The issues discussed are documented by three modelling case studies. Two of the applications are aimed at mine dewatering problems in active coal mines. The first.

Rock Mechanics/Mine Design – Agapito Associates, Inc.

Ground Support Design Using Three-Dimensional Numerical Modeling at Molycorp, Inc.'s, Block Caving Questa Mine · Molybdenum . Modeling Block Cave Subsidence at the Molycorp, Inc., Questa Mine Mine—A Case Study · Molybdenum . Economic Benefits Gained by Rock Mechanics: Three Case Studies · Coal, Gold.

Stability of mine development intersections — a probabilistic .

Nov 18, 2013 . This paper presents a stepwise methodology to assess the stability of mine development intersections with respect to the mine production plan. A case study, the #1 Shear East orebody at Vale Garson Mine in Sudbury, Ontario, is presented. A three-dimensional, elastoplastic, finite difference model (FLAC.

Validation of numerical analysis - DiVA portal

A feasibility study. Catrin Edelbro. Luleå University of Technology. Department of Civil, Environmental and Natural Resources Engineering. Division of Mining and ... Finally, Chapter 6 deals with conclusions, suggestions and a plan for a future validation project. Plan for validation. Numerical modelling. Case study review.

NUMICRICAL MODELLING OF COMPLEX SLOPE DEFORMATIONS

This study presents the application of numerical modelling techniques to the analysis of complex slope deformations and . situations, as in the case of underground mining and its influence on slope stability are presented. . modelling studies relevant to underground mining and block-type deformations allow an increased.

numerical modelling case studies in mining,

A case study of multi-seam coal mine entry stability analysis with .

In this paper, the advantage of using numerical models with the strength reduction method (SRM) to evaluate entry stability in complex multiple-seam conditions is demonstrated. A coal mine under variable topography from the Central Appalachian region is used as a case study. At this mine, unexpected roof conditions.

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