Seventh International Conference and Exhibition on Mass Mining Preliminary Papers

Cave Establishment Cave Propagation and Open Pit Interaction at the Ernest Henry Sublevel Cave — A Campbell, E Ahmu and C Lilley Evaluation of Methods for the Assessment of Cave Development in Block Cave Mines — D Cumming-Potvin, J Wesseloo, S W Jacobsz and E Kearsley Supercaves – Risks, Considerations and Benefits — V DeWolfe and I Ross Calibration of PCBC Flow Parameters for Improved Forecasting – A Case Study from Ridgeway — R Hocking and G Newcombe Undercutting to Surface Breakthrough – Cadia East Panel Cave Stage 1 — J L Lett, A Jager, I Brunton, G Capes and G Sharrock Integrating a High-capacity Deep Post-undercut Panel Cave – A Novel Methodology — J L Lett, G F Dunstan, J Dermody, D Francis, L Potts and A Grivas Implementation of a Surface-based Hydraulic Fracturing Program to Successfully Propagate a Large Block Cave through Hard, Competent Near-surface Rock Masses to Achieve Breakthrough — R J Lowther, L Oliver, J L Lett and I Brunton Undercut Height – A Proposed Guideline for the Initial Cut of a Block and Panel Caving Operation — M Pineda and D Morales Modelling of Real-time Marker Data to Improve Operational Recovery in SLC Mines — G R Power and W Hancock Development and Evaluation Processes of Cave Production Schedules at Resolution Copper Mining — F Prince, R Godard and J Gantumur A Multi-disciplinary and Multi-scale Approach to Apply Physics-based Continuum-discontinuum Simulations to Large Block Caving Operations — F Reusch, C Lilley, D Beck and P Duplancic Selection of Exploitation Method based on the Experience of Hydraulic Fracture Techniques at the El Teniente Mine — E Rojas and C Pardo Rock Straight System — A Romahn Benchmarking and Its Application to Caving Projects — I Ross E48 Cave Extension at Northparkes — L Snyman, J Samosir, A Williams and S Webster Quantification of Rock Mass Damage Associated with a Confined Blast Pre-conditioning Experiment at the Cadia East Block Cave — P C Stewart, I D Brunton, G P Chitombo and D P Francis Life-of-Mine Development and Production Scheduling Optimisation for Sublevel Cave Operations — J White, B Hollis, A Bahnisch, A Campbell and G Chitombo

Cave Management Fragmentation Prediction and Assessment at the Ridgeway Deeps and Cadia East Block Cave Operations — I Brunton, J Lett and T Thornhill Full-scale Flow Marker Experiments at the Ridgeway Deeps and Cadia East Block Cave Operations — I Brunton, J Lett, G Sharrock, T Thornhill and B Mobilio Use of Operation Constraints to Improve Draw Orders at Northparkes Mine — T Bui, S Manurung and S Hanani Development of the Professional Mining Technician – Henderson's Underground Mine Continuous Improvement Program — M Callahan, L Fronapfel, J Mahon, C Rizzardi and J Hatrick A New Method for Draw Strategy and Schedule Optimisation — A Campbell, J White, B Hollis and G Chitombo Experimental Quantification of the Role of Draw-on-induced Vertical Load at the Production Level in Block/Panel Caving — R Castro, J Canales and A Altamirano Experimental and Comminution Model Framework for Secondary Fragmentation Quantification for Block Caving — R Castro, R Gómez and A Casali Geoestatistical Modelling of Hydraulic Fracturing Pressures, El Teniente Mine — J Cornejo, P Landeros, D Benado and C Caviedes Back Analysis of the Junction between Reservas Norte Sector and Dacita Project, Codelco El Teniente — J Cornejo, P Landeros and M Gallardo Oyu Tolgoi Hugo North Lift 1 Cave Production Scheduling — J Dudley and I Austen Characterisation and Monitoring the Stability State of Production Pillars – El Teniente, Codelco, Chile — R Gonzalez and J A Vallejos Analysis of Hang-ups and Oversize Material in Production Areas — P González Carbonell and E Rubio Quadratic Programming Application in Block-cave Mining — F Khodayari Rehabilitation of a Collapsed Panel in the Deep Ore Zone Block Cave Mine, PT Freeport Indonesia — A B Kurniawan, A Sjadat and M Adii Geotechnical Challenges in Cave Monitoring – A Modern Approach — J L Lett, A Jager, J Rachocki and B Mobilio Operational Impacts of High-stress Mining Conditions during Caving Activities — J L Lett, R J Lowther and G B Sharrock Deformation Mechanisms in Block Cave Extraction Levels — C Lilley, P Duplancic and D Beck

Seventh International Conference and Exhibition on Mass Mining Preliminary Papers

Managing the Major Geotechnical Hazards of a Mature Cave – The Ridgeway Deeps Block Cave Experience — R Lowther, T Thornhill, J Doolan and J L Lett In-mine Reflection Seismology — R A Lynch Review of Seismic Monitoring of Cave Front Evolution — R A Lynch Identification of Geological Features and Tracking of the Cave Back Using Micro-seismic Data — D Malovichko, S Meyer and T de Wit Sophisticated Real-time Automatic Micro-seismic Data Processing Using Open Source Programs — J-P Mercier, W De Beer, A Pascu, S Morris, L Snyman, R Henry and J Samosir Location of Seismic Events Associated with Caving Using Brightness Method — S Meyer and T De Wit Draw Control at Argyle's Block Cave Mine — M J Mol, H Purwanto and M Wilson Improved Slot Drilling with the MVM1100 — M Moran Fragmentation and Cave Management from Start to Finish — S N Ngidi Geotechnical Monitoring of Block Cave Operations Utilising Modern Wireless Sensor Network Technologies — R Paine, L Geldenhuys, E Riyanto, A Hariyadi and R Hudson Geometrical Control in Planning Strategy — A Pinochet, J Cornejo and C Caviedes Seven Critical Factors that Affect Cave and Subsidence Behaviour — B L Sainsbury Development and Implementation of the CaveCAD Ground Support Quality Assurance Quality Control Database System for Cost and Safety Improvements in Block Cave Mines — E Savage, A van As, S Talu and P Sturm The Impact of Drawpoint Mud Rushes within the Deep Ore Zone Block Caving Mine, PT Freeport, Indonesia — A Sjadat, U Barito and A M Purba Dilution Entry and Its Influence on Draw Control in Sublevel Caving Mines — G Skekhar, H Schunnesson and A Gustafson Draw Control Optimisation along the Production Drift in Sublevel Caving Mines — G Skekhar, H Schunnesson and A Gustafson Wireless System for Monitoring Cave Back Propagation — S Steffen, J Poulsen, A van As, S Talu, G Watt and J S Ooi Understanding of Rock Mass Behaviour through the Development of an Integrated, Sensing Platform — S Steffen, E Widzyk-Capehart, C Hoelck Teuber, O Fredes, E Sanchez, I Pedemonte, N Gonzalez and J Poulsen PCSLC Drill Blast Load Tool – Equipment Scheduling — L Tcharnyi and D Venter

Taking Sublevel Caving into the Future — J B Tucker Development of an Integrated Platform for the Analysis, Modelling and Design in Panel Caving Mines — J A Vallejos, O Miranda and D Rosales Northparkes Mines' Current Air Blast Risk Assessment Practices for Block Caving Operations — C Vejrazka The Evolution of Block Caving Technology — T Weston Progressing Cave Performance into the Later Stages of the Deep Ore Zone Mine, PT Freeport Indonesia — A D Wilson, G V Hout, A M Purba and A Sjadat Caving Mechanics Coupling Deep Mining Rock Mechanics and Caving — K Beauchamp An Investigation of Factors Affecting the Long-term Reliability of Extraction Level Pillars in Deep Block Caves — D Beck, R Hudson, D Wilson and F Reusch Managing Stress and Seismicity in an Inclined Sublevel Cave — A Campbell, E Ahmu, K Bunker and A Penney Understanding Caving Mechanics as Part of the Planning Process — P Duplancic, C Lilley, D Beck and F Reusch The Application of Hydro-mechanical Mine-scale Modelling for Large Block Caving Operations — A Flatten, F Reusch and D Beck Understanding the Role of Draw on the Stress Distribution in Cave Mines — M Fuenzalida and M Pierce Gravity Flow Full-scale Tests at Esmeralda Mine's Block-2, El Teniente — D Garcés, E Viera, R Castro, M Montecino and M Meléndez Impact of Rock Mass Strength Variability on Caving — T Garza Cruz and M Pierce Numerical Modelling of Geological Structures and their Influence on Cave Propagation — Z Han, S Langer and R Puscasu Modelling Directional Hydraulic Fracturing in Brittle Heterogeneous Rock Masses — Q He, F Suorineni, T Ma and J Oh Utilising a Comprehensive Block Cave Monitoring System for Cave Back Monitoring and Surface Breakthrough of the West Cave at New Gold’s New Afton Mine — C Kamp Application of a Coupled FE/SPH Method for Simulation of Cave Growth and Subsidence in Block and Sublevel Caving — V Levkovitch, D Beck, G Putzar and F Reusch Investigation into the Implementation of Sensor-based Ore Sorting Systems and Online Fragmentation Monitoring in a Copper Block Caving Operation — S Nadolski, B Klein, D Elmo and M Scoble The Smoothed Particle Hydrodynamics in Modelling Rock Fracture and Caving — C T Nguyen, G D Nguyen, H H Bui and V P Nguyen

Seventh International Conference and Exhibition on Mass Mining Preliminary Papers

Holistic Approach to Study Gravity Flow at the Kiruna Sublevel Caving Mine — A Nordqvist and M Wimmer Results from Half-scale Compaction Test at the LKAB Kiruna Mine — N Petropoulos, D Mihaylov, D Johansson, M Wimmer and A Nordqvist Improving Seismic Event Locations and Analysing Microseismic Event Clusters — I J Pinnock, D S Collins, Y Toya and Z Hosseini Discrete Element Method Studies of Interaction between Loading Equipment and the Muck Pile — G R Power and W Hancock Physics-based Modelling of Block Cave Mining — R Puscasu Stress-induced Spalling Analysis of an Extraction Level Footprint Using a Three-dimensional Extensional Strain Failure Criterion — M Rahjoo, K Woo and E Eberhardt The Value of Measuring Fragmentation to Optimise Sublevel Caving – Experiences from Kiruna Mine — E Righetti, N Petropoulos and M Wimmer Geotechnical Milestones at Mount Lyell Mine — G Sharrock and D Cuello The Impact of Draw Strategies upon Extraction Level Pillar Behaviour — S Talu, M Wilson, A Van As and G Watt Using Seismic Space-Time Sequences and Virtual Reality Scientific Visualisation for Identifying the Role of Geological Structures Influencing Caving Mechanics — J D Tibbett, F T Suorineni and B K Hebblewhite Simulating Intact Rock Behaviour Using Bonded Particle and Bonded Block Models — A Turichshev and J Hadjigeorgiou Analysis and Modelling the Fragmentation Process at the El Teniente Mine, Codelco, Chile — J A Vallejos, A Brzovic, E Arancibia and V Barrera Residual Model Generation and Categorisation Post-block Caving Extraction at Salvador Mine — D Villa and F Farias Numerical Investigations on Fines Migration and Size Segregation in Block Caving — D Weatherley and R Puscasu Preconditioning of the E48 Block Cave Extension — S Webster, L Snyman, J Samosir and A Williams Cave Tracker Flow Monitoring System Installation at Argyle Diamond Mine — D Whiteman, S Talu, M Wilson, G Watt, A Van As and P Kuiper The Production Practice of Lift 530 m of Tongkuangyu Copper Mine — L Yuming and B Kaiwen Large Open Stoping A Data Science Approach to Identifying and Quantifying the Causes of Dilution at Mine X Large Open Stoping Mine — K Maher, P Stuart

Practical Stope Reconciliation Process in Large-scale Underground Stoping Operations – Part 2: Olympic Dam — Y Potvin, D Grant, G Mungur, J Wesseloo and Y Kim A Dilution-based Stability Graph for Open Stope Design — F Suorineni, A Papaioanou, L Baird and D Hines Ventilating the Largest Sublevel Open Stoping Underground Mine in Australia — F Swart and G Durandt Building and Calibration of a Geotechnical Model for Sublevel Open Stope Design at Olympic Dam — I Thin, L Morizzi and G Mungur Materials Handling Moving mORE for Less — G Brudek, R P Elliott and P Elestedt Mass Hoisting Operations — M Deziel New Continuous Production System in Block Cave Mining in Combination with State-of-the-art Technology — M Frenzel Preferential Flow in Long Ore Pass Systems at Henderson Mine — J Gresham and A Turichshev PT Freeport Indonesia – Grasberg Block Cave Rail Haulage Project: Automated Ore Train System — A Hariyadi, M A Castro and J Fisher From Face to Surface – A Fragmentation Study — K Jonsson, H Schunnesson, D Johansson and A Gustafson Simplifying the Ore Handling System through the Use of Current Technology at Chuquicamata Underground Mine Project — P Paredes, T Leaño, S Peñaloza and C Tramón PT Freeport Indonesia – Grasberg Block Cave Rail Haulage Project: Design and Construction Update — N Pascoe, B Mead, H Vega and T Azizi Ore Pass Monitoring and Management at the Olympic Dam — J Rose, D Grant and D O'Toole Ore Pass Loss Mitigation Strategy in Malmberget Mine — B Skawina, J Greberg, A Salama and K Jonsson Mine Development Integration of Discrete Event Simulation and Dynamic Programing Techniques for Equipment Selection Optimisation in Underground Block Cave Systems — H M Ahmed, W S Dunbar and N B Keevil Time to First Ore and Footprint Reliability — R P Bewick, A Moss and K Beauchamp PT Freeport Indonesia – Development and Construction Update of the Grasberg Block Cave Mine — C A Brannon, H H Firdausi, N D Pascoe and A T Yuniar PT Freeport Indonesia – An Update on the Transition to Underground Mining — T Casten, C Zimmer and M Johnson

Seventh International Conference and Exhibition on Mass Mining Preliminary Papers

FlowSim – A Versatile Flow Simulation Tool to Quantify Extraction and Design Alternatives for Block Caving — R Castro, F Armijo, M Fuentes and F Rodriguez Mine Planning Information from Photogrammetry Sources in the El Teniente Mine — E Córdova Vergara, E Faundez, P González Carbonell and M Mendez Adaptation of Current Mine Designs to Deeper Mining Environments in El Teniente — E Córdova Vergara, J Videla Webb and P González Carbonell Observations of Ground Support Performance Following Large Dynamic Events — C Drover and E Villaescusa Multiple Heading Tunnelling Analysis for Mining Preparation — M Egaña, R Castro, C Escobar, E Arancibia and A Altamirano The Mining Method of Pulang Copper Mine — X L Feng, H J Liu, H W Liu and J B Liang Inclined Caving Option for the DNK Mine, Kazakhstan — J Fuykschot and S Loewen Advanced Numerical Models for Blasting in El Teniente — I Gottreux, E Córdova Vergara, J Videla Webb, P González Carbonell How Much Drilling Do You Think You Need? — J Jakubec and M Diering Open Benching – An Alternative and Viable Underground Mass Mining Method — J Jakubec and M Telford Seismic Response Prior to Spalling Failure in Highly Stressed Underground Tunnels — A Kusui and E Villaescusa Development and Validation of a Three-dimensional Bonded Block Modelling Approach to Assist in the Assessment of Rock Mass Bulking and Support Design for Highly Stressed Mine Pillars — T Lavoie, E Eberhardt, M Pierce and P Kaiser Value Creation through Rapid Mine Development Using Hard Rock Continuous Cutting Systems — A Lewis Advances in Caving Software for Early Stages of Mine Design — C Ludwicki Evolution of Rock Support Systems in El Teniente Mine — A Muñoz, E Rojas and R A Zepeda Transforming Sheregesh Mine — P Myers and A Gavrilov Formula of Delay Time Calculation in Tunnel Cycle and Formula Working Hours on Tunnel Work — C Paraibabo Development of the Ore Handling System at the Grasberg Block Cave Mine, PT Freeport Indonesia — I M Pasek, H Firdausi and T Chenier Deep Mill Level Zone, PT Freeport Indonesia – From Feasibility to Production — A Priatna, T Casten, A Yuniar and H Rumbino

Resolution Project Update — F Prince and C Pascoe Lessons Learnt through Tunnel Boring Machine Drifting — G Ramage, M Donghi and C Donnelly H2S Gas Potential Based on Drilling Data and Its Impact with Underground Development Planning in DMLZ Mine — Ruswanto, B Antoro, L Soebari, G De Jong, F Meiriyanto, P Silalahi, E Wibowo, A F Budirumantyo and M E Siahaan Determination of Safe Re-entry Time for In-cycle Shotcrete in Underground Excavations — H A Saw, E Villaescusa and C W Geology Factors of Disking Core in the Ertsberg Mining District, Papua, Indonesia — P Silalahi, F Meiriyanto, A Budirumantyo, B Antoro, L Soebari, G de Jong, E Wibowo, Ruswanto and M Siahaan Geohazmap Implementation in Block Cave Mines — S Talu, E Savage and S Howe Automated Drilling Features for Improving Productivity and Reducing Costs in Underground Development — J Välivaara Dynamic Testing of Combined Rockbolt and Mesh Schemes — E Villaescusa, A De Zoyza, J Player and A Thompson Determining the Open Pit to Underground Transition – A Review of Existing Methods and a Proposed New Method — D Whittle, D Thomas, H Rubinstein, M Brazil and P Grossman Mine Support Systems Laboratory Testing of Cemented Rock Fill for Open Stope Support — M Cordova, H A Saw and E Villaescusa Optimising Underground Production through Real-time, Automated Total-activity Management of Mobile Equipment — N Ferreira The Electrical Anatomy of a Complex Underground Mine — J Fisher The Use of Three-dimensional Laser Mapping for Deformation Monitoring — E Jones, D Beck and E Villaescusa Sublevel Open Stoping – Monitoring of Blast Performance — E Villaescusa, R Hassell, R DeVries and J R Player Project Management Why QA/QC Matters – Chuquicamata Underground Case Study — R Aguirre, R Campbell and J Jakubec Budget Estimation and Contingency Allocation of Block Cave Construction Using Least-squares Monte Carlo Real Options — H Ahmed and W S Dunbar Chuquicamata Underground Mine's Operational Philosophy – An Innovative Proposal Based on Industry 4.0 Concepts — F Carrasco, P Paredes and N Perez

Seventh International Conference and Exhibition on Mass Mining Preliminary Papers

The Technical Challenges for the Feasibility of the Mt Lyell Block Cave Extension — D Cuello, J Deross and C Mayes Nuevo Nivel Mina Project Evolution in Risk Scenarios Post-evaluation — D Endara, A Pinochet, C Caviedes and E Huenul Rapid Evaluation of Design Options in Early Stage Caving Projects — S Loewen Oyu Tolgoi – Progression through Phase 2 Feasibility Study Completion and Preparation for Restart — T Newman Palabora Lift II Update — S Pillay Block Cave Evaluation — C A Stewart and R J Butcher Rock Mass Characterisation Material Type of Grasberg Block Cave Underground Mine Freeport Indonesia — F Aiwoy, A Yufianto, T Tengko, B Antoro and P Wiguna Characterisation and Classification for Rock Mass Behaviour in Caving and Implications for Design — R P Bewick, P K Kaiser and F Amann Use of Seismic Deformation and Stress Inversion Analysis to Help Improve Understanding of Rock Mass Response to Excavation — D Collins, Y Toya and Z Hosseini Analysis of Progressive Seismicity and Its Correlation with Geotechnical Variables at the El Teniente Mine, E Córdova Vergara — A Brzovic and R Gonzalez Monitoring the Evolution Block Caves Using Ambient Noise Interferometry — P Dales, J-P Mercier, W de Beer, P Audet, S Morris, L Snyman, R Henry and J Samosir Discrete Fracture Network Modelling for Cave Mining – Importance of Accounting for Data Uncertainty and Variability — D Elmo, S Rogers, S Nadolski and B Klein The Application of RES to Block Caving to Identify the Effective Parameters — M Mohammad Khani Beyond Rock-mass Characterisation – The Impact of Geology on Block Cave Mining — T Murphy, A Webster and G Chitombo

Measuring the Redistribution of Stresses Resulting from New Excavations with Ambient Seismic Noise Correlations — G Olivier, R Lynch and F Brenguier Stability Assessment for Mine Design Based on the Back Analysis of Rock Mass Behaviour at the El Teniente Mine — C Pardo, E Rojas and N Bustos Development of a Mechanistic Rock Mass Model for Understanding and Forecasting Hangingwall Overbreak — J Player, R de Vries and R Hassell Optimised Geotechnical Data Acquisition from Downhole Televiewer Surveys — C R W Seymour, G D Dempers, F de Fredrick and T Nguyen Safety and Environmental Issues Operationally Monitoring Ground Movement in a Mine Environment with InSAR — M Henschel, R Ahola, S Sato and M A McParland Blast-induced Vibrations in Malmberget — K Jonsson and A Nordqvist Mitigation of Water Flow from the Grasberg Open Pit to the Grasberg Block Caving Underground Mine During the Transition Period, PT Freeport Indonesia, Papua, Indonesia — F Putra, A Ginting and U Barito Underground Footwall Monitoring at the Kiirunavaara SLC Mine, Sweden — M Svartsjaern, D Saiang and A Eitzenberger Developing an Approach for Flood Management at the Argyle Block Cave Mine — T Syaifullah, D Saepulloh, G Watt, G Beale, J Casanova, L Bellis and S Daley Preparing Effective Specifications for Occupational Health and Environmental Noise Objectives in Mining Project Design and Delivery — C E Tickell Mudflow – A Risk Analysis System to Predict Mud Entry in Block Caving Operations — M E Valencia, R Castro, N Navia and C Caviedes