Abstracts Received for Afrirock Symposium 2017 · 30 September –6 October 2017
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Abstracts received for AfriRock Symposium 2017 · 30 September –6 October 2017 Keynotes Assessment of the risks in undermining of a surface stream in Rock engineering as a creator of value a shallow coal mine T.R. Stacey, University of the Witwatersrand, South Africa Glencore, South Africa Mythperceptions in rock engineering coal pillar stooping – Partial extraction of coal pillars ensuring N. van der Merwe, Stable Strata, South Africa panel stability Glencore, South Africa Lessons from large failures: geology, stress and support N. Barton, Nick Barton & Associates, Norway coal pillar stooping – Assessing the stability of snooks Glencore, South Africa stress measurements for underground powerhouses – three recent cases the effect on undercutting an unstable layer on roof stability L. Lamas, ISRM Bafokeng Rasimone Platinum Mine, South Africa stability of middling between two tabular chrome seams the Grosvenor strata control journey: learning and adapting Hernic, South Africa from new and challenging experiences P.S. Buddery, Anglo American Met Coal, Australia extraction of hard rock strike pillars Bafokeng Rasimone Platinum Mine, South Africa How rock mechanics can help oil well drilling — Latest developments Investigation of a failure associated with a major shear zone S. Fontoura , Pontifical Catholic University of Rio de Janeiro, Brazil in the Main Pit cut 3 West, at Letšeng Diamond mine Lesotho Letšeng Diamonds, University of Kwazulu Natal, South Africa AbstRActs Rock anchoring beam excavation and shaping technology for Advanced information on rock mass properties in large open the underground powerhouse of Hydropower stations pits by analysing production drill rig parameters in real time China Three Gorges Corporation, China Groundwork Consulting, South Africa Deformation and failure analysis of large underground hard- Rock engineering considerations for the extension of a vertical rock chambers under high geo-stress: A case study of the rectangular shaft in a jointed rockmass adjacent to a large underground powerhouse on the right bank of baihetan open-pit Hydropower station GeoSindile (Pty) Ltd, South Africa China Three Gorges Corporation, China the mineralogical and geotechnical properties of the sandstone ‘parting’ between the Alfred seam and the Gus Research of deformation and failure characteristics, seam in the Magdalena colliery, Dundee mechanism, and engineering countermeasures for South Africa University of KwaZulu-Natal, Buffalo Coal, South Africa surrounding rocks in underground chambers of baihetan Hydropower station Application of controlled blasting to minimize limit wall China Three Gorges Corporation, HydroChina Itasca Research and damage at Letšeng Diamonds Lesotho Development Center, Powerchina Huadong Engineering University of KwaZulu-Natal, South Africa Corporation Limited, China Full-scale dynamic tests of a ground support system using the dam foundation grouting engineering management based high-tensile strength chain link mesh in el teniente Mine, chile on 3D geological model and monitoring system Chile University / Codelco El Teniente, University of Applied China Three Gorges Corporation, China sciences Zurich, Geobrugg AG, Santa María University, Geobrugg Andina Groep T University / Geobrugg Southern Africa (Pty) Ltd, A case study on a risk based approach to stope design Chile, South Africa SRK, South Africa Improving the mining efficiencies as a result of a new support comparison between thin spray on liners and shotcrete as design at Unisel Gold Mine, Welkom, south Africa surface support mechanisms in tunnels Brentley, Lucas & Associates (Pty) Ltd, South Africa University of Cape Town, South Africa Rockburst prevention due to destress blasting in roof time dependent failure of open stopes at target Mine competent rocks in hardcoal longwall mining Brentley, Lucas and Associates, South Africa Institute of Geonics of the Czech Academy of Sciences, Czech Reassessing continuous stope closure data using a limit Republic equilibrium displacement discontinuity model optimizing stoping panel spans at an eastern bushveld University of Pretoria, South Africa platinum mine Geomechanical evaluation enabled successful stimulation of Impala Platinum, South Africa apollonia tight chalk reservoir in Abu-Gharadig basin, egypt Pillar scaling and pillar fracturing in deep level gold mines in Khalda Petroleum Company, Egypt south Africa 1Deep level gold mine techniques for three-dimensional displacement vector using The University of the Witwatersrand, South Africa ground-based interferometric synthetic aperture radar Remediation of abandoned mines for residential development Hexagon Mining, South Africa, IDS GeoRadar, Italy Oweis Engineering Inc, The Falcon Group, USA slope design aspects considerations for shallow open pit A model-oriented, remote sensing approach for the derivation mines: A case study at Mamatwan Mine, northern cape of numerical modelling input data: Insights from the Hope Province slide, canada University of Johannesburg, South Africa Simon Fraser University, Canada Abstracts received for AfriRock Symposium 2017 · 30 September –6 October 2017 A study of multi-reef pillar extraction in the carletonville area A critical review of the findings from in situ stress SibanyeGold, The University of the Witwatersrand, South Africa measurements conducted in southern Africa during the past ten years Parameters required for the design of rock support in highly Hands on Mining cc, Groundwork Consulting, South Africa stressed rock masses Norwegian University of Science and Technology, Norway study of innovative technologies for underground excavations monitoring during construction and operation phases A tool for the evaluation of departmental effectiveness University of Parma, Italy Advisian, South Africa simultaneous extraction of three coal seams with stowing – A Fundamentals of underground pillar design case study Middindi Consulting (Pty) Ltd, University of Pretoria, South Africa CSIR-Central Institute of Mining & Fuel Research, India An empirical and numerical approach to quantifying raise-bore Preliminary investigation to areal shape effect of pillar strength hole stability University of Pretoria, South Africa Middindi Consulting (Pty) Ltd, South Africa Development of a site specific floor deformation index to Microseismic events for slope stability analysis – A case study assess floor heave risks at an open pit mine Anglo American Met Coal, Anglo American Grosvenor Mine, CSIRO Energy, Australia Australia Modelling hydraulic fracturing in hard rock using a characterization and numerical modelling of standard and continuous-discontinuous method cabled strapped pillars in a hematite mine Chinese Academy of Sciences, China University of Vigo, Spain Mining with crush pillars Application of rock mass classification and blastability index Lonmin Platinum, University of Pretoria, South Africa for the improvement of wall control in hard rock open pit Unravelling the structural mysteries of the bermuda triangle at mining: a case study Lonmin’s saffy shaft Lonmin Plc The University of the Witwatersrand, South Africa Terra Explora Consulting, South Africa comparison of observational, empirical and 3D discrete Understanding the influence of geological structures – an numerical methods to estimate subsidence over longwall coal often overlooked important aspect in the stability of operating faces mines University of Vigo, Itasca Consultores SL, Spain Independent Consultant, Lonmin Platinum, Canada, South Africa A multi-objective hybrid prediction model of slope deformation crack propagation energy determination for rock materials based on fuzzy optimization algorithm under static and impact loading Yangtze River Scientific Research Institute, China Karadeniz Technical University, Turkey numerical simulation of fully grouted rock bolts by cautious balst design and practice in close proximity to a considering the non-linear bond-slip behaviour railway tunnel and apartment buildings Nanyang Technological University, Singapore Middle East Technical University, Turkey otjikoto gold mine – a case study on the pit slope design SRK, South Africa evaluation of crack displacement in underground excavations using wireless technology crack meters the effect of seismic sensor frequency on the results of University of the Witwatersrand, South Africa routine seismic monitoring analyses techniques Australian Centre for Geomechanics, Australia stable beam span re-design and support optimization for a shallow hard rock bord and pillar mine: the case of Unki mine, Microseismicity characteristic and rockburst risk mitigation Zimbabwe during the breakthrough in deep-buried tunnels of the Jinping- Unki mines (Pvt) Ltd, Zimbabwe II Hydropower station, china Chinese Academy of Sciences, China excavation-induced seismicity: mechanism and implications Nanyang Technological University, Tsinghua University, China A holistic open-pit mine slope stability index using Artificial neural networks the impacts of plastic deformation on productivity in low- University of Johannesburg, South Africa permeability reservoirs during hydraulic fracturing Petro-Geotech Inc., Canada An investigation on the relationships between the petrographic, physical and mechanical characteristics of two phase flow coupled to geomechanics by dual porosity sandstones from newspaper Member of the natal Group model: simulating fractured reservoirs by finite element University of KwaZulu University of Johannesburg, South Africa method Petro-Geotech Inc., Canada the significance