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RELATIONSHIP OF TECHNOLOGICAL PARAMETERS OF
BACKFILLING MASSIF FORMATION WITH ITS QUALITATIVE
CHARACTERISTICS M.V. Petlovanyi1*, O.M. Kuzmenko1, K.S. Sai1, O.V. Filonenko1 1Dnipro University of Technology MSE of Ukraine, Dnipro,
Ukraine 1*Corresponding author: e-mail: petlyovany@ukr.net Physical and technical problems of mining
production, 2019, (21), 91-105. https://doi.org/10.37101/ftpgp21.01.011 ABSTRACT Purpose. To solve the of the relationship between the technological
parameters of the formation of the backfilling massif from the hardening
backfill with its qualitative characteristics. Methods. The paper carried out analytical studies of the formation of the
backfilling massif on the basis of a comprehensive analysis of the actual
data of the parameters of the filling operations during the intensive
processing of the extracting chambers: the complex’s performance, the
operation of ball mills, the mobility of the mixture, the composition of the
filling mixture, the strength of the filling mixture before being fed into
the chamber, and the fineness of grinding of the binder material. Findings. The results
of analytical studies of the relationship of technological parameters of the
formation of the backfilling massif and its qualitative characteristics are presented. The negative effect of the layering of the
backfilling massif on its stability and quality is established. It is proposed to use the coefficient of variation of the
backfill strength along the height of the chamber for the most complete
strength characteristics of the backfilling massif. The relationship between
the strength of the backfill and the amount of dilution of the ore is obtained. Originality. The
nonlinear nature of the change in the strength of the backfilling massif
along the height of the treatment chamber is established,
depending on fluctuations in the fineness of grinding of the binder, the
composition of the filling mixture, and the stops of the filling complex and
leading to a deterioration in its quality characteristics. Practical implications. The results can be used to refine the calculated parameters of the
extraction chambers, where the strength of the contacting backfilling massif
is taken into account. The results are useful for making additions to
projects for filling the spent chamber spaces with a hardening backfill. Keywords: filling mass, component, composition,
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zakladochnogo massiva v zavisimosti ot tehnologii ego vozvedeniya. Zbirnik naukovih prac Nacionalnogo girnichogo universitetu,
(52), 159-166. ABOUT AUTHORS Mikhailo Petlovanyi, Candidate of Technical Science, Associated
Professor, Dnipro University of Technology, Associate Professor of the Mining
Engineering and Education Department, 19
Yavornytskoho Ave., Dniprо, Ukraine, 49005,
E-mail: petlyovany@ukr.net Oleksandr Kuzmenko, Doctor of Technical Science,
Professor, Dnipro University of Technology, Professor of the Mining
Engineering and Education Department, 19
Yavornytskoho Ave., Dniprо, Ukraine, 49005,
E-mail: petlyovany@ukr.net Kateryna
Sai, Candidate of Technical Science, Associated
Professor, Dnipro University of Technology, Associate Professor of the Mining
Engineering and Education Department, 19
Yavornytskoho Ave., Dniprо, Ukraine, 49005,
E-mail: petlyovany@ukr.net Oleksandr Filonenko, Postgraduate Student, Dnipro
University of Technology, Associate Professor of the Mining Engineering and
Education Department, 19
Yavornytskoho Ave., Dniprо, Ukraine, 49005,
E-mail: petlyovany@ukr.net
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