Estimation of ways to maintain mining works base d on the application of anchor anchoring in the mines of the Karagan da coal basin
Zeynullin A.A. Abeuov E.A. Demin V.F. Aliev S.B. Kaynazarova A.S. Kaynazarov A.S.
2021Ugol Journal Edition, LLC
Ugol
2021Issue 24 - 9 pp.
The paper discusses the experience of operating deep mines shows that one of the problems that needs to be addressed is to ensure the stability of mine workings. As a result of the study of the state of mine workings in mines with a significant depth of mining operations, it indicates that more than 20% of their total length is in an unsatisfactory state. More than 10% of underground work ers are engaged in repair work. When reinforcing one kilometer of workings, more than 70 tons of metal are consumed. Support plays an important role in maintaining the workings. The technology of securing mine workings is a set of techniques and operations for the construction of engineering structures designed to ensure a stable state of underground structures throughout their entire service life. Considering that the support of mine workings affects the course of geomechanical processes in the rock mass containing the workings, it is possible to purposefully influence the processes occurring in it by install ing the support structures at different distances from the working face and at certain intervals after the creation of the rock outcrop. One of the conditions for effective and safe work during the preparatory work ings in the mines of the Karaganda basin is to ensure their stability with a mini mum consumption of fastening materials. Support made of heavy special rolled profiles (arch support), in conditions of significant stress state of the rock mass, do not provide the necessary stability and maintenance-free maintenance of workings. Their construction is a laborious process that is difficult to mechanize. The material consumption of the supports reduces the technical and economic indicators of penetration and, to a large extent, restrains the pace of excavation.
Carrying out , Coal mines , Fastening , Influencing factors , Methods and means of fastening , Mine workings , Mining and geological conditions of development , Technology
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Kazakhstan National Academy of Natural Sciences, Nur-Sultan, 010000, Kazakhstan
Karaganda Technical University, Karaganda, 100027, Kazakhstan
Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON RA S), Moscow, 111020, Russian Federation
Ekibastuz Engineering and Technical Institute named after the Academician K. Satpayev, Ekibastuz, 141208, Kazakhstan
Kazakhstan National Academy of Natural Sciences
Karaganda Technical University
Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON RA S)
Ekibastuz Engineering and Technical Institute named after the Academician K. Satpayev
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