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JAVIER ANDRES VALLEJOS MASSA

academic

university of chile

las condes, Chile

Development of stability studies in the mining and rock engineering design. Specialist in geotechnical characterization, stability of slopes and excavations in rock and soil, monitoring instrumentation, mining sequence and mining methods.

mining engineering, QUEEN'S UNIVERSITY AT KINGSTON. Canada, 2010
Geotechnical Engineering , UNIVERSIDAD DE CHILE. Chile, 2005
Civil Engineering,Structures and Construction , UNIVERSIDAD DE CHILE. Chile, 2003

Academic Full Time

UNIVERSIDAD DE CHILE

Faculty of Physical and Mathematical Sciences

santiago, Chile

2007 - A la fecha

Have directed 22 Master thesis, 3 PhD thesis and 31 Undergraduate thesis. Have co-directed 5 Master thesis and 9 Undergraduate thesis.

Conception, creation and direction of the industry diploma Geomechanics Applied to Mining Design. This diploma was created in 2016, the number of students in this diploma has been gradually increasing from 11 (2016) to 17 (2017) and 22 (2018). This is associated with the development plan and has generated an impact on the industry, improving professional competencies of people. The people trained in this program will lead to higher levels of performance (excellence) at the industry, offering a better approach based on what they did not have the opportunity of acquire during their former studies and this is also a good way to update their knowledge of new researches.

Over 100 demos of MineRoc software for open stope design distributed to the mining industry around the world (Chile, Peru, Canada, Kazakhstan).
Organization of the 9th International Symposium on Rockbursts and Seismicity in Mines (RASIM 9) held in santiago of Chile, November 2017.
Organization of scientific workshop: Impact of hydraulic fracturing on rock mass behaviour, held in santiago of Chile, November 2017.
Organization of scientific workshop: Deformation-based Support Design for Static and Dynamic Conditions in Mining, held in santiago of Chile, November 2017.
Licence contract of MineRoc with Lundin Mining, Copiapo, Chile.
Licence contract of MineRoc with Pucobre, Copiapo, Chile.
Organization of seminars on MineRoc software at University of Concpción, Chile

J.J. Denny Graduate Fellowship

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2005

Established from the sale of gold nuggets donated by Mrs. J. J. Denny in memory of James Denny, M.Sc. '21 and awarded on the recommendation of the department to a graduate student in mining engineering.
Queen’s Graduate Award (QGA)

QUEEN'S UNIVERSITY AT KINGSTON

Chile, 2006

Registered funding eligible students who are in good academic standing may be eligible for a wide range of internal and external scholarships, bursaries and awards including: Queen's Graduate Awards (QGA)
Government of Canada Award – Canadian Bureau for International Education (CBIE)

Canadian Bureau for International Education (CBIE)

Chile, 2006

Government of Canada Award
George C. Bateman Fellowship

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2007

Value variable A bequest by the late George C. Bateman to provide graduate fellowships to students in Mining Engineering. Three awards are available annually.
The Mel Williamson Fellowship

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2007

Established by the Mel Williamson Foundation and awarded in alternate years to a graduate student in the Department of Mining Engineering and the Department of Geological Sciences and Geological Engineering. Awarded on the basis of academic excellence with consideration given to leadership ability, civil responsibility and/or athletic ability. Selection will be made by a committee comprised of representatives from each department.
Queen’s Graduate Award (QGA)

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2007

Registered funding eligible students who are in good academic standing may be eligible for a wide range of internal and external scholarships, bursaries and awards including: Queen's Graduate Awards (QGA)
Queen’s Graduate Award (QGA)

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2008

Registered funding eligible students who are in good academic standing may be eligible for a wide range of internal and external scholarships, bursaries and awards including: Queen's Graduate Awards (QGA)
Ontario Graduate Scholarship (OGS)

QUEEN'S UNIVERSITY AT KINGSTON

Canada, 2008

The Ontario Graduate Scholarships (OGS) promote excellence in graduate studies at the master's and doctoral levels. OGS awards are merit-based scholarships available to graduate students in all graduate disciplines in Ontario Universities. Eligible students apply for OGS through each university where they may be enrolled. The Queen’s University OGS competition is open to any eligible graduate student registered in or any eligible applicant to, a graduate program in the School of Graduate Studies.
Best undergraduate professor

UNIVERSIDAD DE CHILE

Chile, 2012

La Universidad de Chile entrega anualmente, en el marco de la conmemoración de su aniversario, una distinción a los mejores docentes de pregrado.
Reconocimiento a la investigación e innovación

UNIVERSIDAD DE CHILE

Chile, 2021

En el segundo día de celebración del aniversario 179, la Universidad de Chile realizó la ceremonia de Reconocimiento a la investigación, innovación y creación artística 2021. Fueron 198 académicas y académicos destacados de diversas unidades de la institución. De ellos, 55 son parte de la Facultad de Ciencias Físicas y Matemáticas.


A fast method to develop an optimal operational sublevel stope design. Morales, N. V., Mancilla, D., Miranda, R., and Vallejos, J.A. Article (2022)
Evaluation of the seismic rock mass response to mining and the impact of preconditioning using an epidemic-type aftershock model. Gonzalez, F.J., Vallejos, J., Rojas, E., and Landeros, P. Article (2022)
Nonlinear criterion for strength mobilization in brittle failure of rock and its extension to the tunnel scale Cabezas, R. and Vallejos, J.A. Article (2022)
Robust estimation of the fracture diameter distribution from the true trace length distribution in the Poisson-disc discrete fracture network model Hekmatnejad, A; Emery, X; Vallejos, JA Article ISI SCOPUS COMPUTERS AND GEOTECHNICS (2018)
Seismic Parameters of Mining-Induced Aftershock Sequences for Re-entry Protocol Development Vallejos, Javier A.; Estay, Rodrigo A. Article ISI SCOPUS PURE AND APPLIED GEOPHYSICS (2018)
Geotechnical characterization of ore related to mud rushes in block caving mining. R. Castro, K. Basaure, S. Palma and J. Vallejos. Article (2017)
Methodology for evaluation of mud rush risk in block caving mining. J.A. Vallejos, K. Basaure, S. Palma and R. Castro. Article (2017)
Open pit mine planning considering geomechanical fundamentals Parra A.; Morales N.; Vallejos J.; Nguyen P.M.V. Article ISI SCOPUS INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT (2017)
Spatial modeling of discontinuity intensity from borehole observations at El Teniente mine, Chile. A. Hekmatnejad, X. Emery, A. Brzovic, P. Schachter, J.A. Vallejos. Article ENGINEERING GEOLOGY (2017)
Three-dimensional effect of stresses in open stope mine design Vallejos J.A.; Delonca A.; Perez E. Article SCOPUS International Journal of Mining, Reclamation and Environment (2017)
Geotechnical characterization of ore related to mud rushes in block caving mining R. Castro, K. Basaure, S. Palma and J. Vallejos Article Journal of the Southern African Institute of Mining and Metallurgy (2016)
Application of Synthetic Rock Mass modeling to veined core-size samples Vallejos, J.A; Suzuki, K; Brzovic, A; Mars Ivars, D Article INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2016)
Calibration and verification of two bonded-particle models for simulation of intact rock behavior Vallejos, J.A., Salinas, J. Delonca, A., and Mars Ivars, D. Article International Journal of Geomechanics (2016)
Geostatistical simulation to map the spatial heterogeneity of geomechanical parameters: A case study with rock mass rating Pinheiro M.; Vallejos J.; Miranda T; Emery, X Article ISI SCOPUS ENGINEERING GEOLOGY (2016)
Statistical analysis of the stability number adjustment factors and implications for underground mine design Vallejos, J.A.; Delonca, A; Fuenzalida, J.; Burgos, L. Article ISI SCOPUS INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2016)
Truncated Gaussian Simulation to Map the Spatial Heterogeneity of Rock Mass Rating Pinheiro M.; Emery, X; Miranda T; Vallejos J. Article ISI SCOPUS ROCK MECHANICS AND ROCK ENGINEERING (2016)
Multifractal analysis in mining microseismicity and its application to seismic hazard in mine Pasten, D; Estay, R.; Comte D.; Vallejos J. Article ISI SCOPUS INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2015)
Logistic regression and neural network classification of seismic records Vallejos, J.A.; McKinnon, S.D. Article International Journal of Rock Mechanics & Mining Sciences (2013)
Correlations between mining and seismicity for re-entry protocol development Vallejos, JA; McKinnon, SD Article ISI SCOPUS INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2011)
A simple metric to quantify seismicity clustering Cho, NF; Tiampo, KF; McKinnon, SD; Vallejos, JA; Klein, W; Dominguez, R Article ISI SCOPUS Nonlinear Processes in Geophysics (2010)
Omori´s Law Applied to Mining-Induced Seismicity and Re-entry Protocol Development Vallejos, J.A.; McKinnon, S.D. Article Pure and Applied Geophysics (2009)
Hydrostatic compression model for sandy soils Vallejos J. Article ISI SCOPUS CANADIAN GEOTECHNICAL JOURNAL (2008)


Rock mass response to mining and underground construction Vallejos, J.A. BookWhole (2017)


Double impact dynamic test of a ground support system: An analysis through numerical method. Vallejos, J.A., Fuentealba, M., Marambio, E., Burgos, L., Brändle, R., Luis Fonseca, L.R., von Rickenbach, G. and Fischer, G ConferencePaper (2022)
Rock Mechanics and Rock Engineering for Sustainable High Stress Underground Mining. Vallejos J.A. ConferencePaper (2022)
Single impact dynamic test of a ground support system with a high-tensile steel wire mesh at the Walenstadt testing facility Brändle, R., Luis Fonseca, L.R., von Rickenbach, G., Fischer, G., Vallejos, J.A., Fuentealba, M., Marambio, E. and Burgos, L. (2022). ConferencePaper (2022)
Estimating the rock mass disturbance zone in open pit slopes related to stress relaxation Mulet, J.P., Vallejos, J.A And Rimmelin, R. ConferencePaper (2021)
Recolección y análisis de datos para la optimización del proceso de fortificación para mina Tambo de Oro Guerrero, M. And Vallejos J.A. ConferencePaper (2021)
Calibración de sistemas de fortificación para mina Tambo de Oro Guerrero, M. y Vallejos, J. ConferencePaper (2021)
Destress Blasting in The Access Tunnel Of de Andes Norte New Rodríguez, W. And Vallejos, J.A. ConferencePaper (2021)
Metodología para la estimación de estabilidad y sobre-excavación de paredes de caserones en vetas angostas Hidalgo, B., Vallejos, J.A., Miranda, R. And Burgos, L. ConferencePaper (2021)
Recolección y análisis de datos para la optimización del proceso de fortificación para mina Tambo de Oro Guerrero, M. y Vallejos, J. ConferencePaper (2021)
Assisted geotechnical design for sublevel open stoping using MineRoc® software. Vallejos, J.A., Miranda, R., Marambio, E., Burgos L., Sanhueza G. ConferencePaper (2020)
Numerical modelling of dynamic testing for surface retaining elements used in underground mining. Marambio, E., Vallejos, J.A., Burgos L., Von Rickenbach, G., Fischer, G., Branble, R.; Marambio, E., Vallejos, J.A., Burgos L., Von Rickenbach, G., Fischer, G., Branble, R. ConferencePaper (2020)
Progress in the numerical modelling of dynamic testing for reinforcement and retaining elements used in underground excavations Proceedings s en minería por Sublevel Stoping a 38 años del método gráfico de estabilidad de Mathews Rimmelin, R. and Vallejos, J.A. ConferencePaper (2020)
Scale effect on the post-peak behavior in uniaxial compression in dacite samples Zuñiga, C., Vallejos, J.A., Suzuki, K., Orellana, LF., Arzúa, J. ConferencePaper (2020)
Stability Analysis of Open Stope Mining using Support Vector Machines. Miranda R., Vallejos, J.A., Marambio, E., Burgos L., Sanhueza G. ConferencePaper (2020)
Analysis of the mobilization of strength parameters in brittle intact rock Cabezas, R. and Vallejos, J.A. ConferencePaper (2019)
DesafíoProgress in the numerical modelling of dynamic testing for reinforcement and retaining elements used in underground excavations Proceedings s en minería por Sublevel Stoping a 38 años del método gráfico de estabilidad de Mathews Vallejos, J.A., Marambio, E., Marulanda, Y. and Burgos L. ConferencePaper (2019)
Desafíos en minería por Sublevel Stoping a 38 años del método gráfico de estabilidad de Mathews Arriagada, C., Miranda, R., Azorin, J., Vallejos J.A. and Diaz, L. ConferencePaper (2019)
Evaluation of the seismic response of the rock mass using a model of seismic aftershocks of the epidemic type Gonzalez, F. and Vallejos, J.A. ConferencePaper (2019)
Modeling the response of reinforcement elements during dynamic loading Marulanda, Y. and Vallejos, J.A. ConferencePaper (2019)
Use of B Factor from Major Geological Faults’ Orientation on Mathews’ Stability Graph Method. A Case Study Azorin, J., Vallejos J.A., Miranda, R., Mondaca, M., Garrido, C. and Catalan, O. ConferencePaper (2019)
Comportamiento frágil de túneles en roca dura ante altos esfuerzos. Aplicación a Andesita J.A. Vallejos, R. Cabezas ConferencePaper (2018)
Consideraciones para ensayos de compresión uniaxial con medición de Comportamiento post-peak y resultados preliminares J.A. Vallejos, D. Pollak ConferencePaper (2018)
Desarrollo de Curvas de Estabilidad Local en Minería de Sublevel Stoping R. Miranda, J. A. Vallejos, J. Azorin, D. Chavez, M. Mondaca, C. Garrido, O. Catalan. ConferencePaper (2018)
Estudio de métodos de estimación de sobre-excavación para caserones abiertos J.A. Vallejos, R. Miranda ConferencePaper (2018)
Estudio de métodos de estimación de sobre-excavación para caserones abiertos. Díaz, L., Vallejos, J.A. and Castro, C. ConferencePaper (2018)
Evaluación del impacto de fallas en la Estabilidad de caserones J.A. Vallejos, M. Mobil ConferencePaper (2018)
Modelamiento numérico de ensayo dinámico de refuerzo para excavaciones subterráneas E. Marambio, J. Vallejos, L. Burgos, L. Castro, J. Saure, J. Urzúa ConferencePaper (2018)
Modelamiento numérico del Comportamiento de elementos de refuerzo durante eventos dinámicos J. Vallejos, K. Suzuki, R. Zepeda, Y. Marulanda ConferencePaper (2018)
Respuesta del macizo rocoso en minería a cielo abierto de gran profundidad R. Rimmelin, F. Ochoa-Cornejo, J. Vallejos, ConferencePaper (2018)
Respuesta del macizo rocoso en minería a cielo abierto de gran profundidad. Rimmelin, R., Ochoa-Cornejo, F. and Vallejos J.A; Rimmelin, R., Ochoa-Cornejo, F. and Vallejos J.A ConferencePaper (2018)
Stability Graph Comparison Between Mathews’ Method and A New Method Using B Factor from Major Geological Faults’ Orientation Azorin, J., Vallejos, J.A., Miranda, R. and Arriagada, C; Azorin, J., Vallejos, J.A., Miranda, R. and Arriagada, C ConferencePaper (2018)
Analysis of seismicity induced by undercutting and draw bell blasting at Reservas Norte, El Teniente Mine V. Ortega, J. Cornejo and J. Vallejos ConferencePaper (2017)
Complex networks applied to induced seismicity: universalities D. Pasten and J. Vallejos ConferencePaper (2017)
Development of new design tools for open stoping underground mines J.A. Vallejos, R. Miranda, L. Burgos and E. Perez. ConferencePaper (2017)
Geotechnical Guidelines for Mine Planning in Sublevel Stoping Method J. A. Vallejos, R. Miranda and J. Azorin ConferencePaper (2017)
Modeling the Uncertainty in the Intensity of Geological Discontinuities in El Teniente Mine, Chile A. Hekmatnejad , X. Emery, A. Brzovic, P. Schachter and J. Vallejos ConferencePaper (2017)
Space or Space – time clustering? A selection criterion methodology using mining induced seismicity data R. Estay and J. Vallejos ConferencePaper (2017)
A methodology for the study of drawbell hang-up phenomena using three-dimensional discrete element J.A. Vallejos, C. Martinez, A. Brzovic. ConferencePaper (2016)
Adapting the stability graph method to specific site conditions in Mineroc E. Perez, J.A. Vallejos, R. Miranda ConferencePaper (2016)
Analysis and modeling of the fragmentation process: Case studies at El Teniente Mine, Codelco- Chile A. Brzovic, J. A. Vallejos, E. Arancibia, L. Burgos, A. Delonca, M. Gaete, and V. Barrera, ConferencePaper (2016)
Application of Shear Strength Reduction technique for stability analysis of ground support. L. Burgos and J.A. Vallejos. ConferencePaper (2016)
Characterization and monitoring the stability state of production pillars R. González, R. Munoz, J. Vallejos and A. Delonca ConferencePaper (2016)
Estudio de métodos de estimación de subsidencia y su aplicación a casos históricos P. Iglesias, J.A. Vallejos. ConferencePaper (2016)
Methodology for stability analysis of entry- type underground excavations L. Burgos, J.A. Vallejos and A. Delonca. ConferencePaper (2016)
Progressive damaging in hard rock on underground excavations and numerical modelling with CWFS approach R. Cabezas, J.A Vallejos. ConferencePaper (2016)
'Characterization and Synthetic Simulations to Determine Rock Mass Behaviour at the El Teniente Mine, Chile. Part I Brzovic, A, Schachter, P, de los Santos, C, Vallejos, J & Mas Ivars, D ConferencePaper (2015)
A dilution model for narrow vein mine design –A Case Study F. Marcos, J.A. Vallejos, R. Castro, and a. Hekmat. ConferencePaper (2015)
Characterization and synthetic simulations to determine rock mass behaviour at the El Teniente mine J.A. Vallejos, K. Suzuki, Brzovic, A., and D. Mars Ivars. ConferencePaper (2015)
Development of an integrated platform for the stability analysis and design in sublevel stoping mines – MineRoc J.A. Vallejos, O. Miranda, Gary. C, and A. Delonca. ConferencePaper (2015)
Integración del Peligro Sísmico en Planificación Minera de Panel Caving C. Lobiano, J.A. Vallejos. and N. Morales ConferencePaper (2015)
Mine Planning, Mathematical Optimization, Schedule, Selective Underground Methods N. Morales, J.A. Vallejos. and A. Gómez. ConferencePaper (2015)
Multi-criteria optimization for scheduling of a bench and fill mine Morales N.; Gomez A.; Vallejos J. ConferencePaper SCOPUS Application of Computers and Operations Research in the Mineral Industry - Proceedings of the 37th International Symposium, APCOM 20 (2015)
Planificación minera a cielo abierto utilizando fundamentos geomecánicos A. Parra, N. Morales, and J.A. Vallejos ConferencePaper (2015)
'Characterization and Synthetic Simulations to Determine Rock Mass Behaviour at the El Teniente Mine, Chile. Part II Vallejos, J, Suzuki K, Brzovic A, Mas Ivars D. ConferencePaper (2014)
Seismic hazard analysis at the El Teniente mine using a clustering approach J. Cornejo, J. Vallejos, X. Emery, E. Rojas ConferencePaper (2014)
Simulating the effect of preconditioning in primary fragmentation Juncal A.S.; Ivars D.M.; Brzovic, A; Vallejos J. ConferencePaper SCOPUS Rock Engineering and Rock Mechanics: Structures in and on Rock Masses - Proceedings of EUROCK 2014, ISRM European Regional Symposium (2014)
Towards an understanding of mud rush behaviour in block-panel caving mines M.E. Valencia, K. Basaure, R. Castro, J.A Vallejos. ConferencePaper (2014)
'Application of the Synthetic Rock Mass approach to characterize rock mass behavior at the El Teniente Mine, Chile' Vallejos, J, Brzovic, A, Lopez, C, Bouzeran, L & Mas Ivars, D ConferencePaper (2013)
A methodology for evaluating the performance os seismic indicators at El Teniente Mine, Codelco Chile Vallejos J., Estay R. Zepeda R. Jorquera P. ConferencePaper (2012)
Temporal Evolution of Aftershock Sequences for Re-entry Protocol Development in Seismically Active Mines Vallejos J. McKinnon S. ConferencePaper (2010)
Re-entry protocols for seismically active mines using statistical analysis of aftershock sequences Vallejos, J.A. and McKinnon, S.M. ConferencePaper (2009)
Scaling laws and their implications for re-entry protocol development Vallejos, J.A. and McKinnon, S.M ConferencePaper (2009)
Guidelines for development of re-entry protocols in seismically active mines J. Vallejos, S. McKinnon, ConferencePaper (2008)
Optimization of extraction sequence in a Bench & Fill mine considering the impact of exposure rate on dilution: a case study. 2. V. Rojas, N. Morales, J. Pérez and J. A. Vallejos ConferencePaper
Short and Medium Term Mine Planning in Selective Underground Mining considering Equipment Performance 4. J. Pérez, N. Morales, E. Widzyk-Capehart, V. Rojas and J. A Vallejos ConferencePaper