3D Numerical Study of Underground Coal Mining Induced

AbstractSafe and successful face operations in thick seam workings require a better understanding of rock support interactions to assist selection of a suitable mining horizon and support system for sustainable strata control The results of a numerical modelling study of strata behaviour during thick seam longwall mining under strata conditions ranging from easy to difficult to cave are

Numerical modelling of multistage caving processes

In geology numerical modeling is a widely applied technique to tackle complex geological problems by computational simulation of geological scenarios Numerical modeling uses mathematical models to describe the physical conditions of geological scenarios using numbers and equations Nevertheless some of their equations are difficult to solve directly such as partial differential equations

International Journal of Rock Mechanics and Mining Sciences

Numerical evaluation of longwall mining-induced subsidence is much more complicated when more than one seam is to be extracted Only a few research works have dealt with this problem This paper discusses the essential requirements of a robust numerical modelling approach to simulation of multi-seam longwall mining-induced subsidence

Computer simulation - Wikipedia

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

numerical modelling theories in mining - girotondoforafrica it

Map3D has become the de facto standard for numerical modelling of mining layouts worldwide The program is easy to use with Courses run frequently for all levels of user The support is excellent with responses provided within 24 hours Any bugs are thoroughly investigated and a fix provided in the subsequent update

Groundwater Modelling for Mining - Edumine Short Course

An Overview of Numerical Modelling Applied to Deep Mining L A M Castro Golder Associates Mississauga ON Canada theory of faulting thrust faults are typically assumed

PDF An overview of numerical modelling applied to deep

The course is aiming to give students basic knowledge of numerical analysis for rock engineering Several numerical methods will be introduced such as FEM DEM and FDM The intention is that students will understand the fundamental theory and application of the numerical …

Mine Design and Numerical Modeling Laboratory - McGill

IMAGING OF STRESS IN ROCK SAMPLES USING NUMERICAL MODELING AND LABORATORY TOMOGRAPHY Rudrajit Mitra ABSTRACT Underground mining has one of the highest fatal injury rates among any of the industries in the United States which is more than five times the national average of the other industries MSHA

Numerical modelling for estimation of first weighting

Nov 16 2010· Numerical modelling in Geomechanics 1 152 National Seminar on Underground Coal Mining THE FUTURE OF OVERGROUND LIES BELOWGROUND Chief General Manager CP P Singareni Collieries Co Ltd Associate Professor Department of Mining Engineering IIT Kharagpur …

PDF Numerical modelling of blast-induced ground vibrations

numerical modelling theories in mining numerical modelling of mining subsidence 4 development of a numerical modelling buckling theory 250 Numerical analysis of seepage flow characteristic of in order to analyze seepage flow characteristics of collapse column under the influence of mining model of numerical the theory and numerical

Three ways to assess mining-induced fault instability

Jun 15 2018· In this study numerical modelling approach has been used to investigate the change in permeability on the overburden strata due to the underground extraction The results show that the permeability immediately above the mining seam increases in excess of six orders of magnitude

NUMERICAL MODELLING OF THE MINING - …

term forecasting models for prediction of chaotic time series Casdagli and Eubank 1992 Data mining does not try to accept or reject the efficient market theory Data mining creates tools which can be useful for discovering subtle short-term conditional patterns and trends in …

Applications of numerical modelling in underground mining

Computer simulation is the reproduction of the behavior of a system using a computer to simulate the outcomes of a mathematical model associated with said system Since they allow to check the reliability of chosen mathematical models computer simulations have become a useful tool for the mathematical modeling of many natural systems in physics computational physics astrophysics

Effect of faulting on coal burst A numerical modelling

Groundwater Modelling for Mining 2 - Numerical Modelling covers set-up of a numerical model model calibration and verification modelling predictions and evaluation of model uncertainty The course comprises ten learning sessions of 30 to 60 minutes each several case studies and interactive reviews that confirm achievement of the learning

Numerical Modelling - Mining Geomechanics

Numerical modelling in Geo mechanics - SlideShare Numerical modelling in Geo mechanics 1 NUMERICAL MODELLING AN EFFECTIVE TOOL FOR MINE PLANNING U Siva Sankar M Tech Under Manager Project Planning SCCL Email email protected Modelling Proper understanding of complex behaviour of rock mass has always always been difficult for reliable design and safe operation of mining …

Numerical Modelling of Mine Workings - CSIR

The goal of this research is to develop numerical models which can be used by mining operators to predict the ground vibrations generated depending on factors such as the blast design site

numerical modelling theories in mining

3-D numerical modelling of stresses around a longwall panel with top coal caving The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MAY JUNE 2005 289 Figure 2—A simplified plan view of Omerler underground mine

Takis Katsabanis - mine queensu ca

3-D numerical modelling of stresses around a longwall panel with top coal caving The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MAY JUNE 2005 289 Figure 2—A simplified plan view of Omerler underground mine

Paper Guidelines for numerical modelling of rock support

2006 Coal Operators Conference The AusIMM Illawarra Branch 6 7 July 2006 313 NUMERICAL MODELLING OF MINING INDUCED SUBSIDENCE Walter Keilich 1 Ross Seedsman 2 and Naj Aziz 1 ABSTRACT A methodology of subsidence prediction using the Distinct Element code UDEC has been developed as an alternative for subsidence modelling in the Southern Coalfield New South Wales …

Applications of Numerical Modelling for Strata Control in

Various numerical codes have been developed to study challenging scenarios experienced during longwall extraction COSFLOW MOOSE and FRACOD are developed in our team in collaboration with researchers from various research laboratories These codes are unique compared to commercially available codes COSFLOW incorporates the Cosserat theory in its description of load-deformation …

Numerical modelling of the groundwater inflow to an

technology-neutral data mining process model The paper concludes with a major illustration of the data mining process methodology and the unsolved problems that offer opportunities for research The approach is both practical and conceptually sound in order to …

Groundwater Modelling for Mining 2 - Numerical Modelling

Numerical modelling of the mining induced horizontal displacement 69 „without I C means „without Initial Conditions where initial conditions are applied as initial state of stress

Map3D - Home

Applications of Numerical Modelling for Strata Control in Mines design and safe operation of mining structures Numerical modelling has emerged as a popular tool solving the static as well as

Numerical modelling approach for mine backfill - ias ac in

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

Chapter 1 DATA MINING FOR FINANCIAL APPLICATIONS

The rapid development of computer technology has enabled the numerical applications of multiphysics modeling in the petroleum industry its applications are particularly popular for the numerical simulation of drilling and completion processes This book covers theory and numerical applications of multiphysical modeling presenting various

PDF An overview of numerical modelling applied to deep

Cite As Lorig LJ Varona P 2013 Guidelines for numerical modelling of rock support for mines in Y Potvin B Brady eds Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction Australian Centre for Geomechanics Perth pp 81-105

3-D numerical modelling of stresses around a longwall

Abstract 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

Numerical modeling geology - Wikipedia

Three-dimensional models of the case study mining block are constructed to examine drift stresses associated with individual stope recovery as the mining block is extracted Model results include stress distribution around the drift extent of yield zones as well as drift deformation profiles In stage 4 numerical modelling results are

DATA MINING A CONCEPTUAL OVERVIEW - WIU

The most downloaded articles from International Journal of Rock Mechanics and Mining Sciences in the last 90 days The most downloaded articles from International Journal of Rock Mechanics and Mining Sciences in the last 90 days advances and outstanding issues in numerical modelling for rock mechanics and rock engineering April 2003

Drilling and Completion in Petroleum Engineering Theory

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 In the end results of