Prediction of self-collapse parameters and rock failure boundaries during joint development of apatite deposits
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Abstract
The issues of estimation of danger of collapse of collapsing rocks at joint horizontally underground and open-pit development of apatite deposits sites are considered. It is shown, that at known parameters of self-collapse of covering rocks and borders of their collapse there are organizational and technological possibilities of prevention of danger of ejection of rocks in a quarry by a choice of an appropriate order and parameters of development of clearing works in underground conditions, and also a place and time of performance of protective measures.
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References
- Galaev N.Z., Krapivin V.N. Deposit development by caving systems in conditions of increased mountain pressure // Mining Journal. 1973. № 6.
- Golovanov V.A. Establishment of shear process parameters and prediction of the collapse of the worked rock strata during the development of the Khibiny apatite deposits: Author's thesis . . . . candidate of technical sciences / Leningrad Mining Institute . Л., 1984.
- Guidelines for managing the collapse of covering rocks in underground mines of the S.M. Kirov Production Association Apatit . / KF AS USSR. Apatity, 1988.
- Shnaider M.F., Voronenko V.K. Combination of underground and open-cast mining of ore deposits. M.: Nedra, 1985.
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