Abstract
Tailings cemented backfill is widely used in the production activities of mine management goaf, and it is also one of the main technologies to realize green mining and safety production. In this paper, the cyclic loading and unloading test of cemented tailing backfill is carried out based on acoustic emission technology, the evolution trend of AE energy in the loading process is analyzed, the damage variable based on AE energy is defined, and the damage evolution equation of cemented tailing backfill based on AE energy is established, and the quantitative relationship between AE energy and damage energy release rate is explored. It provides basic research basis for bearing process analysis and failure prediction of cemented backfill in mine site.
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