12TH INTERNATIONAL SYMPOSIUM ON ROCK FRAGMENTATION BY BLASTING

JUNE 11-13 2018 | LULEÅ, SWEDEN

12FRAGBLAST

Håkan SchunnessonDaniel Johansson

editors

TECHNICAL PROGRAM

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Preface

In 1983, the 1st Fragblast Symposium was held in Luleå, Sweden. This initiated the largely successful FRAGBLAST symposium which is the most prestigious blasting symposium in the world. Since 1983 the Fragblast symposia have been held in United States, Australia, Austria, Canada, South Africa, China, Chile, Spain and India. Now 35 years later we are honoured to bring this prestigious symposium to the place where it was born. This symposium is and has always been a unique forum to share knowledge, ideas and experiences. Many new and innovative findings that have attained a global distinction were first presented at a FRAGBLAST symposium. The relevance and importance of the FRAGBLAST symposium have over the years remained and its proceedings books are a must-have literature in the working desk of field engineers, consultants and researchers. We would like to thank all authors that have shared their knowledge and experience during this symposium. Additional to this, all reviewers are highly acknowledged for their efforts. It is our sincere wish that you all enjoy and find this symposium truly beneficial. We look forward to many interesting and fruitful discussions, both during the symposium and after; with old and newly found friends within our community.

Symposium co-chairs

Daniel Johansson Håkan Schunnesson

Division of Mining and Rock Engineering Luleå University of Technology, Sweden

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General program

Day Time Activity Location

Saturday 9th June 08:30 am – 04:00 pm Short course Luleå University of Technology

Sunday 10th June 08:30 am – 04:30 pm

06:00 pm – 08:00 pm

06:00 pm – 08:00 pm

Workshop

Welcome reception

Conference registration

Luleå University of Technology

Clarion Hotel Sense

Clarion Hotel Sense

Monday 11th June 08:30 am – 10:00 am

10:00 am – 11:00 am

11:00 am – 04:30 pm

11:00 am – 04:30 pm

08:00 pm – 11:00 pm

Conference registration

Opening ceremony

Technical sessions

Exhibition

Midnight cruise dinner

Reception area

The Great Hall

The Great Hall and Concert Hall

Exhibition area

North Harbour Luleå

Tuesday 12th June 09:00 am – 04:30 pm

09:00 am – 04:30 pm

07:00 pm – 11:00 pm

Technical sessions

Exhibition

Conference dinner

The Great Hall and Concert Hall

Exhibition area

Restaurant “Kulturens Hus”

Wednesday 13th June 09:30 am – 02:15 pm

02:25 pm – 02:45 pm

Technical sessions

Closing ceremony

The Great Hall and Concert Hall

The Great Hall

Thursday 14th June Departure 06:30 am from ”Kulturens hus”

Mining tour

Friday 15th June Return to Luleå 09:00 pm (Approximately)

Mining Tour

 

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Keynote Speakers Professor José Ángel Sanchidrián Director, Master on Sustainable Mining at Universidad Politécnica de Madrid - ETSI Minas y Energía and Chairman of Fragblast International Organising Committee.

Professor Wenbo Lu Director at State Key Laboratory of Water Resources and Hydropower engineering, Wuhan University

Professor Finn Ouchterlony Professor at Montanuniversität Leoben, Department Mineral Resources and Petroleum Engineering. Former head of Swebrec research centre

Dr. Matthias Wimmer Manager Mining Technology, LKAB’s Kiruna division

Professor Sunniva Haugen Head of the mining technology section at the Research and Development department at Boliden Mineral AB. professor at the Dept. of Geology and Mineral Resources Engineering, at the NTNU, Norway

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Technical Program Monday 11 June 2018

08:30 am – 10:00 am Registration and morning coffee/tea 10:00 am – 11:00 am Opening ceremony (The Great hall) 11:00 am – 12:00 pm Keynote presentations 12:00 pm – 01:00 pm Lunch break and exhibition

The Great Hall The Concert Hall Session 1: Automation and introduction of new technologies in blasting operations Session Chair: Cameron McKenzie, Blastechnology

Session 2: Blast damage I Session Chair: Bibhu Mohanty, University of Toronto

01:00 pm – 01:15 pm

Building inexpensive accelerometer-based seismographs - K. Ray and G. Yuill

Estimation of blast Induced damage of saturated rib-pillars in large diameter blast hole (LDBH) stope - D. Deb, S. Mohanto and Y. K. Gujjala

01:15 pm – 01:30 pm

The study on remote monitoring management information system of rotary drill - Y. Duan, D. Xiong, B. Gong, Q. Wang, Z. Yang, M. Wang and H. Chi

Assessment and control of backbreak using near-field vibration signatures in Dragline bench blasting - N. V. Bhagade, V. M. S. R. Murthy, S. Srivastava, S. Pal and S.Singh

01:30 pm – 01:45 pm Present situation and prospect of blasting safety supervision - L. Ge, H. Yin and B. Fan

Estimation of tensile strength of Laurentian granite under high strain rate loading - A. Saadatmand Hashemi and P. Katsabanis

01:45 pm – 02:00 pm Lowering cost of mining with true wireless detonators, the latest initiation innovation - M. B. Lovitt and N. Pereira

Blast induced overbreak control in roadway tunnels of Himalayan rocks in India - M. Ramulu, P. B. Choudhury and P.K. Singh

02:00 pm – 02:15 pm

Blasting technique for optimizing the comprehensive cost of mining and mineral processing - X. Li, Z. Xu, D. Zhang and L. Guo

Near-field energy distribution in wall control blasting - an engineering approach - P. Couceiro, J. Pascual and M. Lopez Cano

02:15 pm – 02:30 pm

Prediction of run of mine particle size distribution and grinding circuit performance using blast hole drilling data - C. Paredes, V. Jokovic and S. S. Kanchibotla

An experimental investigation of fracture patterns near a blasthole in cylinders of granite under different radial confinements - L. Y. Chi, Z. X. Zhang, A. Aalberg and J.Yang

02:30 pm – 03:00 pm Afternoon coffee/tea break and exhibition

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Monday 11 June 2018 The Great Hall The Concert Hall

Session 3: Blast vibrations and special blasting techniques I Session Chair: Trevor Little, Blasting Geomechanics Pty Ltd

Session 4: Rock fragmentation and case studies I Session Chair: Bill Adamson, Davey Bickford

03:00 pm – 03:15 pm Digital filters for A, B, and C frequency weighting for sound level data - A. T. Spathis

The influence of blasthole standard deviation (BSD) on fragmentation - P.A. Rustan

03:15 pm – 03:30 pm

Blast design for underground long hole stope to safeguard surface industrial structures from blast induced vibration - V. K. Himanshu, M. P. Roy, M. Sarim, P. K. Singh and A. K. Mishra

Determining the size distribution of fragmented rocks by blasting using GLCMs textural features of images and neural network - H. Yaghoobi, H. Mansouri, M. A. Ebrahimi Farsangi and H. Nezamabadi-pour

03:30 pm – 03:45 pm

Vibration modelling and mechanisms for wall control blasting - D.P. Blair

Flattening of hill by blasting in densely populated area for construction of international airport at Navi Mumbai, India - M. P. Roy, C. Sawmliana, R. K. Paswanand P. K. Singh

03:45 pm – 04:00 pm

Characteristics of blasting vibration induced by tunnel rock excavation under high in-site stress - M. Chen, W. Gao, W. He, W. Lu and G. Yang

Pre-split blasting techniques at Dragline benches for stable bench with improved fragmentation level - P. K. Singh, M. P. Roy, V. K. Himanshu, R. K. Paswan and S. Kumar

04:00 pm – 04:15 pm

Do different standards for blasting seismographs mean different accuracy? - P. Segarra, J. A. Sanchidrián, I. del Castillo, R. Castedo, L. M. López and J. Navarro

Pattern Expansion Optimization Model based on fragmentation analysis with Drone Technology - F. Leite, V. Miranda and T. Palangio

04:15 pm – 04:30 pm

Blasting excavation technologies of a sandstone deep foundation pit under complex urban environment - G. Liu, R. Liang and X. Wang

08:00 pm – 11:00 pm Midnight cruise dinner (North harbour)

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Technical Program Tuesday 12 June 2018

09:00 am – 10:00 am Keynote presentation (The Great Hall) 10:00 am – 10:30 am Morning coffee/tea break and exhibition

The Great Hall The Concert Hall Session 5: Explosive performance and mechanics of rock blasting I Session Chair: Takis Katsabanis, Queen's University

Session 6: Rock fragmentation and case studies II Session Chair: Matthias Wimmer, LKAB

10:30 am – 10:45 am

Emulsion characterization with cylinder test and JWL parameters determination - L. M. López, R. Castedo, J. A. Sanchidrián, M. Natale, A. P. Santos, J. Navarro, M. Chiquito

Evaluation of UAV System Accuracy for Automated Fragmentation Measurement - T. Bamford, K. Esmaieli and A. P. Schoellig

10:45 am – 11:00 am

Continuous Wavelet Transforms - A Way to Tease Explosive Performance From Seismograms - D. Anderson

Modeling VoD effects on rock fragmentation within multiple blasthole fragmentation (MBF) model - R. Yang

11:00 am – 11:15 am

A Relationship Between Detonation Performance and Low Density Explosive Physical Properties - G. Cavanough, S. Parsons and J. Rock

Analysis and interpretation of LiDAR data in determination of fragmentation - I. C. Engin and N. H. Maerz

11:15 am – 11:30 am

Calibration and Validation of Reactive Flow Model Parameters for an emulsion explosive - C. Yi, U. Nyberg and D. Johansson

Design and implementation improvements for wall control blasting in an anisotropic rock mass at the Phu Kham Copper-Gold Operation - E. Sellers, L. Kennelly, B. Withers, K. Monro and D. Reid

11:30 am – 11:45 am

Filming blast fragmentation of rock and mortar cylinders - I. Kukolj, A. Iravani, F. Ouchterlony, C. Weiss and J. Lubensky

Application of Power Deck in wet condition, case study: Goharzamin iron ore mine - M. J. Askari Badoee, M. A. Ebrahimi Farsangi, H. Mansouri and A. M. Mansour Panahi

11:45 am – 12:00 pm

Proposed improvements for single blasthole test reporting methodology and observations from tests in rock salt mines - J. D. Aubertin, D. J. Hutchinson, M.S. Diederichs and R.Triebel

Optimisation of blast design for an armour stone quarry – a case study - G. Gopinath, H. S. Venkatesh and R. Balachander

12:00 pm – 01:00 pm Lunch break and exhibition

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Tuesday 12 June 2018 01:00 pm – 02:30 pm Commercial session (The Great Hall) 02:30 pm – 03:00 pm Afternoon coffee/tea break and exhibition

The Great Hall The Concert Hall Session 7: Sustainable blasting and new developments Session Chair: Ewan Sellers, Mining3

Session 8: Blast damage II Session Chair: Alex Spathis, Houdini Phantom Research and Secretary General FIOC

03:00 pm – 03:15 pm

Role of blasting in assisting with value-based ore control in underground mines - T.N. Little and M.B. Lovitt

Overbreak in underground excavations - some key insights - H. K. Verma, P. K. Singh, A. Swarup, H. L. Arora and D. V. Singh

03:15 pm – 03:30 pm

The class 3 permissible water gel explosive with high-strength and its tunneling blasting in underground coal mine - Z. Guo, W. Liu, F. Liu, F. Zhu, C. Wang and L. Yuan

Analysis on components and characteristics of seismic waves induced by horizontal smooth blasting - Q. Gao, W. Lu, Z. Yang, H. Hu, P. Yan and M. Chen

03:30 pm – 03:45 pm

Application of an in-house MWD system for quarry blasting - J. Navarro, P. Segarra, J. A. Sanchidrián, R. Castedo, A. P. Pérez Fortes, M. Natale and L.M. López

Evaluation of the impact of blast induced vibrations on human habitat at the excavation of a huge dam foundation in China - P. Yan, S. Luo, L. Yuan, T. Zhou, W. Lu, M. Chen and G. Wang

03:45 pm – 04:00 pm

The use of 3D accelerometer – and gyro sensors in smartphones to measure the blasthole deviation in non-magnetic rock - V. Miranda and F. Leite

Impact of blasting on surrounding rock mass properties - H. K. Verma, P. K. Singh, A. Bharadwaj and V. Sharma

04:00 pm – 04:15 pm

Present and future prospect of exploder for underground coal mines of India - B. Ahirwal, B. M. P. Pingua, M. P. Roy, M. K. Singh and R. K. Vishwakarma

Measurement while drilling technique in blasting damage calculation - J. van Eldert, H. Schunnesson, D. Johansson and D.Saiang

04:15 pm – 04:30 pm

Making economically viable the exploitation by D&B in a quarry within sensitive, highly populated area - S. De Palma, M. Cardu and J. Seccatore

A FEM-SPH coupled procedure for the analysis of blast induced damage in rock - D. Deb and A. Khan

07:00 pm – 11:00 pm Conference dinner (Conference centre)

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Technical Program  

Wednesday 13 June 2018 09:30 am – 10:00 am Keynote presentations (The Great Hall) 10:00 am – 10:30 am Morning coffee/tea break and exhibition The Great Hall The Concert Hall Session 9: System approaches in mining

Session Chair: Pablo Segarra, Universidad Politécnica de Madrid

Session 10: Blast vibrations and special blasting techniques II Session Chair:Wenbo Lu, Wuhan University

10:30 am – 10:45 am

Blasting Vs Crushing and Additional Grinding – Pro’s and Con’s - S. S. Kanchibotla, R. Morrison, S. Tello and T. Chenje

Response spectra for vibration and shock loads - A.T. Spathis

10:45 am – 11:00 am

A pit to gate multivariable cost control model - R. Tamir and J. E. Everett

Study on the influence of long term frequent blasting vibration on buildings and human body - X. Liao, F. Shi, Y. Jiang and X. Li

11:00 am – 11:15 am

Productivity improvement in Aggregate Quarry vis-a-vis Fragmentation by Blasting - R. M. Bhatawdekar, M. T. Edy, J. A. Danial, S. Changthan and G. K. Pradhan

Research on crack propagation rule in single hole bench blasting based on rock mesostructured - Z. Chen, J. Yang, X. Xu, Z. Xu and M. Qu

11:15 am – 11:30 am

Improving Downstream Performance Through a Highly Flexible Energy Explosive - P. Couceiro, J. Pascual, M. Lopez Cano, F. Beitia and M. Laguillo

Safe dismantling of unstable boulder using controlled blasting in the historical Town of Gaya, India - C. Sawmliana, P. K. Singh, M. P. Roy, R. K. Singh and V. K. Himanshu

11:30 am – 11:45 am

Applied data analytics on blast-induced outcomes using multi-year blasting data from an operational open pit mine - B. Ohadi, X. Sun, K. Esmaieli and M. P. Consens

Effect on comminution properties of blast preconditioned magnetic mortar - H. Mansouri, F. Ouchterlony, H. Inanloo Arabi Shad and A. Böhm

12:00 pm – 01:00 pm Lunch break and exhibition  

 

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Wednesday 13 June 2018 The Great Hall The Concert Hall Session 11: Numerical simulations of rock

blasting Session Chair: Pradeep Singh, CSIR-Central Institute of Mining and Fuel Research

Session 12: Explosive performance and mechanics of rock blasting II Session Chair: Lina Lopez, Universidad Politécnica de Madrid

01:00 pm – 01:15 pm Modelling blast fragmentation of cylinders of mortar and rock - A. Iravani, I. Kukolj, F. Ouchterlony, T. Antretter and J. Åström

Experimental and numerical investigation on rock fragmentation under combined blastholes with different diameters - Z. Leng, Q. Gao, W. Lu, G. Zhou and Y. Hao

01:15 pm – 01:30 pm An engineering model to estimate blast movement and resulting ore loss and dilution - R. Picorelli, A. Musunuri, M. Jones and S. S. Kanchibotla

Investigation of blasting safety control of high rock slope with joints - Y. Hu, G. Zhao, W. Lu, M. Liu and P. Li

01:30 pm – 01:45 pm Comparison between coupled SPH-FEM numerical model of a single hole blast and experimental test - M. Natale, R. Castedo, L. M. López, J. A. Sanchidrián, P. Segarra, A. P. Santos and J. Navarro

Experimental and numerical investigations of dynamic failure process in rock under air decoupling charge blasting - C. He and J. Yang

01:45 pm – 02:00 pm Numerical investigation for timing effects on fragmentation based on a coupled FEM-BPM-PBM model - C. Yi, D. Johansson and U. Nyberg

Rock fracture and fragmentation, and derivation of improved crushing rate indices: an alternate approach - S. Huang and B. Mohanty

02:10 pm – 02:30 pm Closing and transfer ceremony (The Great Hall) 02:30 pm – 03:00 pm Afternoon coffee/tea break and exhibition  

 

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Directory  

International Organizing Committee José Angel Sanchidrian Alex Spathis Agne Rustan/Emeritus Claude Cunninghan Roger Holmberg/Emeritus William Fourney Bibhu Mohanty Cameron McKenzie Sushil Bhandari Xuguang Wang Finn Ouchterlony Carlos Orlandi Ewan Sellers Peter Moser Takis Katsabanis William Adamson Dale Preece Pradeep Singh Daniel Johansson Enrique Munaretti Lina López Wenbo Lu

National Advisory Board Agne Rustan Finn Ouchterlony Henrik Ittner Matthias Wimmer Roger Holmberg Evgeny Novikov

Local Organizing Committee Håkan Schunnesson Daniel Johansson Changping Yi Anna Gustafson Gurmeet Shekhar Jeroen van Eldert Nikolaos Petropoulos Sohail Manzoor  

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App and Wi-Fi  

How to use the Mobile App for Fragblast 12 Step 1 Download the “MeetApp Go” from the Play Store.

Available for Android and iphone. Step 2 Enter the event by clicking the “Add by Code”. Step 3 Enter the App access code “fragblast12”. Step 4 Select the “FragBlast 12” event on the main screen.

Accept the privacy policy. Step 5 Enter the event code “fragblast12” and search. Step 6 Click the option “Activate Event” displayed on the

mobile screen.

Note:

Update your profile in the “Participants” tab in the menu bar. You can use the “Activity Feed” of the App once you update your profile. Activity feed is an

internal mini-Instagram where participants can post pictures and comment on each other's posts.

You can use “Dialogue” tab in the menu bar during the paper presentation sessions to ask questions to the presenter.

Allow push notifications from this event in the “settings” tab, so that you do not miss any important information during the event.

Wi-Fi communication The conference centre (Kulturens Hus) has an open Wi-Fi network available (LK-guest). To use the network, you have just to accept the general user conditions.

Questions If you have any questions related to the App and Wi-Fi communication, please contact the Speakers Corner.

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Venue maps  

 

 

 

 

 

 

 

 

 

 

 EXHIBITORS 1. Rut & Sten Brands Stiftelse 2. LKAB 3. Boliden Mineral AB 4. Maptek 5. 3GSM 6. Peck Tech 7. DYNAmore 8. SKB 9. Itasca 10. Finexplo 11. Nitroerg 12. Forcit 13. AVA Monitoring 14. geo-konzept 15. SIP-STRIM 16. SLIM 

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City map  

 

1. Conference Centre 2. Clarion Hotel Sense 3. Savoy Hotel 4. Elite Stadshotellet 5. Quality Hotel 6. North Harbour 7. Bus Stop (for Airport and University)  

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Sponsors