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THEORY AND PRACTICE OF PRODUCTION
THE QUESTIONS OF DEVELOPMENT OF MINERAL RESOURCES DEPOSITS BY UNDERGROUND METHOD
ArticleName Criteria and peculiarities of the bedded roof failure during mining of Verchnekamskoe potash deposit
ArticleAuthor Baryakh A. A., Shumikhina A. Yu., Toksarov V. N., Lobanov S. Yu., Evseev A. V.
ArticleAuthorData

Baryakh A. A., Director, Doctor of Engineering Sciences, e-mail: bar@mi-perm.ru, Shumikhina A. Yu., Senior Scientific Employee, Candidate of Engineering Sciences, Toksarov V. N., Senior Scientific Employee, Candidate of Engineering Sciences, Lobanov S. Yu., Research Assistant, Candidate of Engineering Sciences Evseev A. V., Younger Research Assistant, Mining Institute of Ural Branch of RAS

Abstract

Based on the study of stress-strain state of breakage headings at Verchnekamskoe potash deposit, when using the room-and-pillar system in salt rock massif characterized by bedding and abnormal claying, methods of mathematical modeling of deformation processes, criteria and characteristics of room floor and roof stability are introduced. According to the results of mathematical modeling of the stress-strain state of technological interlayers AB KrII in high argillization when sewage recess while leaving a protective costume and maintenance of the roof to collapse yielding pillars area may cover the entire roof of the reservoir Korzheva KrII. Undercut cakes causes intense destruction of the roof rocks, and can lead to complete loss of stability of technological interlayers. Regardless of the treatment plant extraction schemes increase the width of the pillars of interchamber reduces the risk of forming chambers in the top layer and shear cracks KrII separation, reduces the height of the collapse. More pronounced this is manifested in the development of the abandonment of the protective package.

keywords Bedding and bed shaliness, room-and-pillar system, parting, stress-strain state, stoping, caving criteria, massif-room border, stability criteria
References

1. Nemtin G. N. Vybor ratsional'nykh variantov tekhnologicheskikh skhem podgotovki i otrabotki sil'vinitovykh plastov so slaboustoychivoy krovley (The choice of rational variants of technological schemes of training and working out sylvinite layers with weakly stable roof). Razrabotka solyanykh mestorozhdeniy : Mezhvuzovskiy sbornik nauchnykh trudov — Development of salt deposits : interuniversity collection of scientific proceedings. Permskiy politekhnicheskiy institut, 1986.
2. Yudin R. E., Marakov V. E., Sivkov E. S. et al. Kontrol' za napryazhenno-deformirovannym sostoyaniem tselikov i krovli ochistnykh kamer v rudnikakh Verkhnekamskogo kaliynogo mestorozhdeniya (Control of stress-strain state of the pillars and roof treatment chambers in mines potash deposits Verkhnekamsk). Kontrol', prognozirovanie i upravlenie sostoyaniem porod v kaliynykh rudnikakh — Monitoring, prediction and management of the state of rocks in the potash mines. Leningrad : VNIIG, 1985.
3. Konstantinova S. A., Khronusov V. V., Sokolov V. Yu. Napryazhenno-deformirovannoe sostoyanie i ustoychivost' porod v okrestnosti ochistnykh vyrabotok pri razrabotke odnogo sil'vinitovogo plasta (Stress-strain state and stability of rock excavation in the vicinity of sewage in the development of a sylvinite layer). Izv. vuzov. Gornyy zhurnal — Mining Journal News of Higher Educational Institutions. 1993. No 4.
4. Bolikov V. E., Konstantinova S. A. Prognoz i obespechenie ustoychivosti kapital'nykh gornykh vyrabotok (Forecast and ensure of stability of capital mining). Ekaterinburg : UrO RAN, 2003.
5. Toksarov V. N. Naturnye issledovaniya deformirovaniya krovli ochistnykh kamer v usloviyakh povyshennoy glinizatsii (Dietary studies of deformation of the roof treatment chambers in high argillization). Materialy nauch. konf.: Strategiya i protsessy osvoeniya georesursov — Materials of the scientific conference: Strategy and Process Development of Geological Resources. Perm', 2009.
6. Kuznetsov G. N. Mekhanicheskie svoystva gornykh porod (The mechanical properties of rocks). Moscow : Ugletekhizdat, 1947.
7. Zenkevich O. Metod konechnykh elementov v tekhnike (Method of finite elements in the technique). Moscow : Mir, 1975. 318 p.

8. Malinin N. N. Prikladnaya teoriya plastichnosti i polzuchesti (The applied theory of plasticity and creep). Moscow: Mashinostroenie, 1975.
9. Fadeev A. B. Metod konechnykh elementov v geomekhanike (Method of finite elements in the mechanics). Moscow : Nedra, 1987.
10. Goodman R. The mechanical properties of joins. Adv. Rock Mech. 1974. Vol. 1. Pt A.
11. Baryakh A. A., Konstantinova S. A., Asanov V. A. Deformirovanie solyanykh porod (Deformation of salt rock). Ekaterinburg : UrO RAN, 1996.

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