EFFECTIVE STRENGTHENING SOLUTIONS FOR FRACTURED ROCK MASSES USING TAILINGS
Bek А.А. Yestemesov Z.А. Baidzhanov D.О. Fedotenko N.А.
2022Ore and Metals Publishing house
Eurasian Mining
2022#37Issue 159 - 63 pp.
The authors develop effective solutions for strengthening and reinforcement of disturbed rocks in underground mines using tailings. The object of research is tailings and backfill mixtures with and without additives, and the research subject is the physical and mechanical properties as well as hardening of backfill mixtures in conditions of natural humidity. The standard methods were used to determine characteristics of initial materials, backfill mixtures composition and their physical and mechanical properties. The studies included Akzhal mine tailings used as an aggregate of backfill mixtures for strengthening fractured rocks in the open pit mine, as well as damaged rib pillars and roofs in underground excavations. The results can be used for the expansion and reproduction of the building materials supplies, for the enhancement of industrial safety in mines and for the minimization of the environmental impact of mining.
building materials , cement , compressive strength and cohesion , concentration plant , damage , fractures , mine , mineral mining , mining waste , open pit , rock mass failure , solutions , strengthening , superplasticizer , tailings , X-ray and spectrophase analyzes
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Karaganda State Technical University, Karaganda, Kazakhstan
Central Certification Laboratory of Building Materials, Almaty, Kazakhstan
Research Institute of Comprehensive Exploitation of Mineral Resources—IPKON, Moscow, Russian Federation
Karaganda State Technical University
Central Certification Laboratory of Building Materials
Research Institute of Comprehensive Exploitation of Mineral Resources—IPKON
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