Abstract
The article describes a modern approach to the technology of backfilling of working space, taking into account the sustainable development of mining. The aspects of economic efficiency, safety and ecology are considered. A detailed analysis of various backfilling methods that are used in modern enterprises is given. The advantages and disadvantages are given. The article describes in detail the work carried out in this area at the Mining Institute of NUST “MISiS”. One of the directions is the study of the possibility of using local natural materials or waste products as backfills. In particular, studies were carried out on the formation of backfill arrays based on sulphide-containing and halite tailings. The issues of influence on the quality of the backfill as the granulometric composition and ratio of coarse and fine aggregates, as well as their quantity per unit of volume, amount of water (water binding ratio), method of preparation, transportation and styling, conditions (temperature) and age of hardening are also considered.
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