1st Edition
Minefill 2020-2021 Proceedings of the 13th International Symposium on Mining with Backfill, 25-28 May 2021, Katowice, Poland
The series of International Symposiums on Mining with Backfill explores both the theoretical and practical aspects of the application of mine fill, with many case studies from both underground and open-pit mines. Minefill attendees and the Proceedings book audience include mining practitioners, engineering students, operating and regulatory professionals, consultants, academics, researchers, and interested individuals and groups.
The papers presented at Minefill symposiums regularly offer the novelties and most modern technical solutions in technology, equipment, and research. In that way, the papers submitted for the Minefill Symposia represent the highest quality and level in the conference domain.
For the 2020-2021 edition organizers hope that the papers presented in this publication will also be received with interest by readers around the world, providing inspiration and valuable examples for industry and R&D research.
Preface
Editors
Committees
Sponsors
Sponsor sessions
Efficient paste mix designs using new generation backfill admixtures – perception versus reality
F. Erismann & M. Hansson
Paste fill stiffness investigation
J. De Villiers Wickens & S. Wilson
Pulsation dampening systems for piston pumps operating at backfill installations
T. Lutz & P. Peschken
Paste quality control benchmarks
D. Stone
Using paste backfill for stabilizing underground stopes at the Giant Mine remediation project
B. Ting, D. Stone, K. Ruptash & B. Fabien
Investigation into the high transients experienced in Eleonore Mine’s pastefill distribution system
M. McGuinness, K. Creber, J. Jacobs & B. Haley
Paste backfill measurements and testing
The effect of curing conditions on the strength development of cemented backfill samples
B. Dennis & M. Helinski
Experimental investigation on shear strength properties of interface between backfill and rock
G. Liu, W. Wu, L. Guo, X. Yang & Z. Zhang
The concept of obtaining backfilling material using the dredging method
M. Gruszczyński, S. Czaban, & Sz. Zieliński
The properties of the backfill mixtures based on own fine-grained waste
R. Pomykała & W. Kępys
Cemented paste backfill failure envelope at low confining stress
M. Grabinsky & A. Pan
Cemented paste backfill response to isotropic pressure
M. Grabinsky & M. Jafari
Evaluating cemented paste backfill plug strength and the potential for continuous pouring
M. Grabinsky, B. Thompson & W. Bawden
Binders, admixtures, and other chemicals to improve fill performance
The influence of the flocculant on the process of thickening and depositing of copper ore flotation tailings
M. Gruszczyński, S. Czaban, R. Pratkowiecki, Z. Skrzypczak & P. Stefanek
Determining the required underground grout pack production profile for narrow tabular mining operations
B. van der Spuy
Rheological yield stress measurement of paste fill: new technical approaches
M. Silva, M. Hansson & M. Costa e Silva
Backfill reticulation: pumping, piping, hydraulic analyses
Automated backfill diverter valves at Kirkland Lake Gold Fosterville Mine improve safety and efficiency
R. Evans & G. Trinker
Filter revamping, the economic way to get old filters in tailings dewatering back on track
J. Hahn
Theoretical methods to improve the placement of paste backfill behind barricades
Ch. Lee
Laboratory testing on static and dynamic behaviours of backfill
A novel approach to assessing the early age strength of fibrecrete, using shear wave velocity
S. McGrath & M. Helinski
A design procedure for evaluation and prediction of in-situ cemented backfill performance
X. Wei & L. Guo
The uniaxial compressive strength of fiber-reinforced frozen backfill
H. Niu, F.P. Hassani, M.F. Kermani & M. He
Incorporating the monolithic nature of paste backfill into self-heating assessments
Ch. Lee, B. Timmis, D. Brown, V. Bertrand & M. Stewart
Minefill geomechanics, numerical modeling, mitigation of subsidence
DEM numerical modeling of longwall extraction of coal in “Mysłowice” colliery
G. Smolnik
Deformations of the mining area surface as a result of exploitation with sealing of caving gobs
V. Sokoła-Szewioła, A. Mierzejowska & M. Poniewiera
Geomechanical safety aspects in hard rocks mining based on room-and-pillar and longwall mining systems
W. Pytel, B. Pałac-Walko & P. Mertuszka
Legal, safety, and environmental drivers for backfill
Filling underground voids to prevent water hazards in active and decommissioned hard coal mines
G. Strozik
Impact of the method of managing opencast excavations by filling with mining waste on the quality of leachate entering the surface water
S. Rzepecki, A. Grodzicka & K. Moraczewska-Majkut
Properties cemented backfill prepared on the basis selected coal combustion products (CCPs)
P. Pierzyna
Impact involving the sealing degree of caving goaf with fine-fraction hydraulic mixtures on the ventilation parameters of longwall headings
M. Popczyk & D. Musioł
Case studies
Geomechanical analysis of the rock mass stability in the area of the "Regis" shaft in the "Wieliczka" Salt Mine
G. Dyduch, P. Jarczyk & M. Jendryś
Case study: paste plant retrofit
L. Correia, B. Cothill, P. Antunes & S. James
Review of sandfill reticulation system at northern Ontario Mine
J. Landriault, D. Dewit & J. Yamine
Paste-waste design and implementation at Newmont Goldcorp’s Tanami Operation
R.L. Veenstra & J.J. Grobler
Summary of improvements to the backfill system at DBS Operations
A. Zajac & R.L. Veenstra
Case study – design and implementation of a high density cemented hydraulic fill system at Oz Mineral’s Prominent Hill Mine
M. Helinski & J. Shaw
Green mining – use of hydraulic backfill in the Velenje coal mine
J. Kortnik
Biography
Ferri Hassani, Jan Palarski, Violetta Soko?a-Szewio?a, Grzegorz Strozik
