Geomechanical substantiation of parameters of technology for mining salt deposits with a backfill
1
Wrocław University of Science and Technology
2
National University of Science and Technology MISiS, 119049, Moscow, Leninskiy prospekt 4, Russia
3
Itasca Consultants GmbH, 45886 Gelsenkirchen, Leithestr. 111a, Germany
Mining Science 2021;28:19-32
KEYWORDS
TOPICS
Technology of deposit excavation in underground and strip miningMine engineering and construction, underground constructionEnvironmental protection and waste recycling
ABSTRACT
The analysis of the technogenic impact of mining on the environment was carried out. A transition to geotechnology with backfill is proposed in order to reduce the impact of mining operations. The paper presents the results of research aimed at finding the parameters of the technology for mining salt deposits with backfill and the determination of the backfilling influence on the dynamics of deformation of the undermined rock mass. The results of studies on the qualitative and quantitative assessment of the rock mass behavior (by the finite element method with the use of the FLAC3D software), extracted by the harvesters, are given. The research shows the influence of mining on the mass, changes in the maximum stresses during the cementing of the paste backfill in the stopes. It is recommended to use this approach in geotechnical assessment of the rock mass behavior in the conditions of using development systems of various classes.
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