Research

Publications

2015

  • Alarcón M., Morales N., Emery X., "Using simulation to assess the trade-off between value and reliability in open pit planning", in APCOM 2015, Fairbanks, Alaska, EEUU.
  • Julio C., Morales N., Amaya J., Lamghari A., "Optimal economic envelop of joint open pit and underground mines", in APCOM 2015, Fairbanks, Alaska, EEUU.
  • Morales N., Jélvez E., Nancel-Penard P., Marinho A., Guimaraes O., "A comparison of conventional and direct block scheduling methods for open pit mine production scheduling", in APCOM 2015, Fairbanks, Alaska, EEUU.
  • Morales N., Gómez A., Vallejos J., "Multi-criteria optimization for scheduling of a Bench & Fill mine", in APCOM 2015, Fairbanks, Alaska, EEUU.
  • Gómez A., "Secuenciamiento multi-criterio para minería subterránea selectiva", in SIMIN 2015, Santiago, Chile.
  • Jélvez E., Morales N., Nancel-Penard P., "MIP based heuristics to optimize block scheduling: Improving known solutions in Minelib", in CORS/INFORMS 2015, Montreal, Canada.
  • Morales N., Nelis G., Quiroz J., Rocher W., "UDESS - A multipurpose scheduling problem for mine planning", in CORS/INFORMS 2015, Montreal, Canada.
  • Morales N., Nancel-Penard P., "MineLink: A framework for optimization in open pit block scheduling", in CORS/INFORMS 2015, Montreal, Canada.
  • Nelis G., Gamache M., Marcotte D., Bai X., "Stope optimization with convexity constraints", in CORS/INFORMS 2015, Montreal, Canada.
  • Morales N., Gómez A., Vallejos J., "Multi-criteria optimization for scheduling of a Bench & Fill mine", in MinePlanning 2015, Antofagasta, Chile.
  • Sepúlveda G., Alarcón M., Morales N., "integración de parámetros técnico-económicos y variables geometalúrgicas en la planificación minera", in MinePlanning 2015, Antofagasta, Chile.
  • Parra A., Morales N., Vallejos J., "Planificación minera a cielo abierto utilizando fundamentos geomecánicos", in MinePlanning 2015, Antofagasta, Chile.
  • Alarcón M., Morales N., Mancilla D., "VGML: integración de minería de datos, geostadística y planificación minera en la nube", in MinePlanning 2015, Antofagasta, Chile.
  • Yarmuch, J., Nancel-Penard P., Morales N., "Factores relevantes para la comparación de modelos de optimización en minas a rajo abierto", in MinePlanning 2015, Antofagasta, Chile.
  • Vargas E., Morales N., Emery X., "Cálculo de envolvente económica bajo incertidumbre geológica en minas de Block Caving", in MinePlanning 2015, Antofagasta, Chile.
  • Manríquez F., Navarrete M., Morales N., "Evaluación de incertidumbre geológica y operacional en planes mineros de corto plazo a cielo abierto", in MinePlanning 2015, Antofagasta, Chile.
  • Jélvez E., Morales N., Sepúlveda G., "Comparación de distintas aproximaciones para calcular pit final robusto bajo incertidumbre de leyes", in MinePlanning 2015, Antofagasta, Chile.
  • Toro H., Morales N., "Agendamiento multi-criterio de actividades de preparación minera en el corto plazo", in MinePlanning 2015, Antofagasta, Chile.
  • Morales N., "Nuevos desafíos para el modelamiento  en planificación minera", in OPTIMA 2015, Antofagasta, Chile.
  • Nancel-Penard P., Cornillier F., Morales N., "A hybrid improvement heuristic for the constrained pit problem in open pit mining", in OPTIMA 2015, Antofagasta, Chile.
  • Lobiano C., Morales N., Vallejos J., "Integración del peligro sísmico en planificación minera de Panel Caving", in OPTIMA 2015, Antofagasta, Chile.
  • Toro H., Morales N., "Modelo de agendamiento de actividades de preparación minera de corto plazo", in OPTIMA 2015, Antofagasta, Chile.

2013-2014

  • Jélvez E., Mancilla D., Morales N., Nancel-Penard P., "Comparing heuristics for the open pit block scheduling problem", in APCOM 2013, Porto Alegre, Brazil.
  • Quiroz J., Morales N., Rudloff B., "Using real options to introduce flexibility in mine planning under uncertainty", in APCOM 2013, Porto Alegre, Brazil
  • Vargas E., Morales N., Emery X. "Footprint and Economic Envelope Calculation for Block/Panel Caving Mines under Geological Uncertainty", in MinePlanning, in MinePlanning 2013, Santiago, Chile (POSTER).
  • Enrique Jélvez, Nelson Morales, Pierre Nancel-Penard, Diego Mancilla, "Fast algorithms for the open pit block scheduling problem", in MinePlanning 2013, Santiago, Chile.
  • Nelis G., Morales N., Ortiz J. "Stochastic Programming applied to Mine Planning under Geological Uncertainty with Different Levels of Information", in IFORS 2014, Barcelona, España.
  • Emilio Vargas, Nelson Morales and Xavier Emery, "Footprint and Economic Envelope Calculation for Block Caving Based Mines Under Geological Uncertainty", in Caving 2014, Santiago, Chile.
  • Patricio Allende and Nelson Morales, "Open pit mine planning under the influence of subsidence of an preexisting underground mine", in Caving 2014, Santiago, Chile.
  • Nelson Morales, "Optimization of Mine Development Planning", in Caving 2014, Santiago, Chile.

2012

  • Maximiliano Alarcón, Edgardo Madariaga, Nelson Morales y Enrique Rubio, Integrating constructability of a project into the optimization of the production planning and scheduling, in MassMin 2012, Sudbury, Canada.
  • Winston Rocher, Milivoj Smoljanovic, Enrique Rubio y Nelson Morales, Optimal sequencing and scheduling for a block/panel cave mining, in MassMin 2012, Sudbury, Canada.
  • Manuel Reyes, Xavier Emery and Nelson Morales, Final Pit: Simulated annealing approach with floating cones, in MININ 2012, Santiago, Chile.
  • Enrique Jelvez, Nelson Morales, Juan Peypouquet and Patricio Reyes, Algorithms based on aggregation for the open pit block scheduling problem, in MININ 2012, Santiago, Chile.
  • Bastian Rudloff and Nelson Morales, Real Options in open pit mine planning under geological uncertainty, in MININ 2012, Santiago, Chile.
  • Maximiliano Alarcón, Edgardo Madariaga and Nelson Morales, Underground development sequencer and schedule applied to a panel caving mine, in MININ 2012, Santiago, Chile.
  • Bastián Rudloff, Nelson Morales, "Aumento de confiabilidad en planes de producción de minas operadas a cielo abierto, mediante la incorporación de incertidumbre geológica y opciones reales.", in VI Seminario de Acercamiento Tecnológico, Calama, Chile, 2012.
  • Manuel Reyes, Xavier Emery, Enrique Jelvez y Nelson Morales, "Fast algorithms for open pit planninf: Tackling uncertainty in mining", en VI Seminario de Acercamiento Tecnológico, Calama, Chile, 2012.
  • Nelson Morales, Sharing Chilean and Southafrican experiences in mine planning research: MineLink, in Efficient Optimization for Mine Planning, 2012, Johannesburg, Southafrica.

2011

  • Nelson Morales, Enrique Rubio, Winston Rocher, "UNDERGROUND DEVELOPMENT SEQUENCER AND SCHEDULER CONSIDERING CONSTRUCTABILITY", in MinePlanning Antofagasta, Junio 2011.
  • Nelson Morales, Enrique Rubio, Milivoj Smoljanovic, "BLOCK/PANEL CAVING SCHEDULING UNDER PRECEDENCE CONSTRAINTS", in MinePlanning, Antofagasta, Junio 2011.
  • María José Alpízar, Nelson Morales, Enrique Rubio, Jacques Wiertz "MODELS TO REDUCE DIESEL CONSUMPTION OF TRANSPORT AND ARSENIC EMISSIONS", in MinePlanning, Antofagasta, Junio 2011.
  • Nelson Morales, Winston Rocher, Enrique Rubio, Milivoj Smoljanovic, "Integrating constructability of a project into the optimization of production plans and schedules" in IFORS, Melbourne, Australia, Julio 2011.
  • Nelson Morales, Enrique Rubio, "Planificación Minera de Corto Plazo para Cielo Abierto", in Primer Taller Internacional de Planificación Minera OVIMINE, Lima, Perú, Marzo 2011.
  • Enrique Jélvez, Nelson Morales, Juan Peypouquet, Patricio Reyes, "Aggregation heuristics for producing lower bounds to the open pit sequencing problem" in X ISORA, Lima, Perú, Septiembre 2011.
  • Winston Rocher, Nelson Morales, Enrique Rubio, "Eight-Dimensional Planning: Construction of an Integrated Model for the Mine Planning Involving Constructability", in proceedings of APCOM 2011, Wollongong, Australia, Septiembre 2011.
  • Milivoj Smoljanovic, Nelson Morales, Enrique Rubio: "Panel Caving Scheduling Under Precedence Constraints Considering Mining System." in proceedings of APCOM 2011, Wollongong, Australia, Septiembre 2011.
  • Winston Rocher: "Ocean mining, Undersea mining or Offshore mining in the Chilean National Legislatoin, in the International Law and its technological Progress", in proceedings of UNDERWATER MINING INSTITUTE 2011, Hawaii, Septiembre 2011.
  • Winston Rocher: "Secuenciamiento de Preparación y Desarrollo Minero en Faenas Subterráneas", 60a convencion del Instituto de Ingenieros de Minas de Chile, Calama, Chile, Octubre 2011.
  • Winston Rocher: "Nuevo mundo, nuevos recursos", 60a convencion del Instituto de Ingenieros de Minas de Chile, Calama, Chile, Octubre 2011.

2010

  • Newman A., Rubio E., Caro R., Weintraub A., Eurek K. "A Review of Operations Research in Mine Planning", J. Interfaces Volume 40 Issue 3, May 2010.
  • Nelson Morales, "Short-Term Open Pit planning with blending constraints" in Discrete Mathematics, Sydney.
  • Nelson Morales, Enrique Rubio, "Robust Open-Pit Planning under Geological Uncertainty", in MININ 2010, Santiago.
  • Jorge Amaya, Nelson Morales, "Mathematical Formulation and Strategies for the Mine Planning Problem", in ALIO INFORMS, Buenos Aires 2010.
  • María José Alpízar, Nelson Morales, Jacques Wiertz, "Optimization Models to reduce CO2 emisions and energy consumption of transport in openpit mines", ABSTRACT in ENERMIN, Santiago 2010.
  • Enrique Rubio, Nelson Morales, Fernando Peirano, Marcelo Vargas, "DELPHOS: Laboratorio de Planificación Minera", V Seminario de Acercamiento Tecnológico, Calama.
  • Delphos organizó también el primer Taller de Planificación Delphos.

2009

  • Camilo Morales, Enrique Rubio, ''Development of a Mathematical Programming Model to Support the Planning of Short-Term Mining'' at APCOM 2009, Vancouver, Canada
  • Andrés Solar, Enrique Rubio, Alexandra Newman, "Open Pit Underground Transition Supported by Integer Linear Programming Modeling", in APCOM 2009, Vancouver.
  • Enrique Rubio, "Planning Caving Operations Using Underground Infrastructure Reliability Models, Andina Case Study", in APCOM 2009, Vancouver.
  • Marcelo Vargas, Nelson Morales and Enrique Rubio, ''A short term mine planning model for open-pit mines with blending constraints" in MinePlanning 2009, Santiago, Chile.
  • Marcelo Vargas, Nelson Morales, Patricio Mora, "Secuencing Model for Reserves Extraction Incorporating Operacional and Geometallurgical Variables" in MinePlanning 2009, Santiago.
  • Fernando Peirano and Marcelo Vargas, Eman Widijanto, Eman Widijanto, "Risk Associated to Incorporating Indicated and Inferred Resources in a Mine Plan", in MinePlanning 2009, Santiago.
  • Gustavo Donoso, Álvaro Vergara and Rodrigo Zúñiga, Nelson Morales and Enrique Rubio, "Mathematical Modelling for Planning Under Geological Uncertainties", in MinePlanning 2009, Santiago.
  • Camilo Morales, Nelson Morales and Enrique Rubio, ''Short Term Mine Planning Model Supporting Geometallurgical Operational Blending'' in INFORMS 2009, San Diego, USA.
  • Sebastián Troncoso, Patricio Prieto, Enrique Rubio, "Cut off Grade Optimizer Integrating Contaminant Constraints" in Proceeding of APCOM 2009, Vancouver.