Frame and conventional mine structures for underground mining of the Jerooy stockwork-type deposit by stoping system with backfill

For mining the Jerooy stockwork-type gold deposit in Kyrgyzstan using the hybrid successive–concurrent surface/underground geotechnology, the frame and conventional structures are proposed for the orebody preparation and stoping with backfill. Selection of mining systems to suit the geological and geotechnical conditions is described. The application conditions for upward stoping are discussed. The method of ring blasting is chosen for ore breaking. Four conventional flowcharts of stoping with rib pillars to be extracted later on, after backfill of stopes include twoand three-stage sequence of stoping on a sublevel, with stoping front advance on three sub-levels at once, with possibility of mining on three pursuit levels. To increase scientific knowledge of mining, the frame structure mine is presented for the Jerooy deposit, which minimizes events initiated by rock pressure during underground mining and weakens the influence of surface mining; protects mining operations from water, if any present in enclosing rock mass; and reduces expenses owing to cemented paste backfill for filling frame stopes. The frame structure mining also includes two-and three-stage sequence of stoping on a sublevel, with the stoping front advance on three sub-levels and with mining operations on three pursuit levels. The mining flowcharts are based on the calculation of impact exerted on the ore body, enclosing rock mass, and backfill by blasting operations in case of concurrent surface and underground mining.

Chuprin K. E., Babkin E. A., Eremenko V. A., Kosyreva M. A. Frame and conventional mine structures for underground mining of the Jerooy stockwork-type deposit by stoping system with backfill. MIAB. Mining Inf. Anal. Bull. 2025;(8):45-59. [In Russ]. DOI: 10.25018/0236_1493_2025_8_0_45.

K.E. Chuprin¹, Deputy CEO on Production, e-mail: chuprin.ke@alliance-altyn.kg,
E.A. Babkin¹, Head of Geotechnical Engineering Service, e-mail: babkin.ea@alliance-altyn.kg,
V.A. Eremenko², Dr. Sci. (Eng.), Professor of the Russian Academy of Sciences, Director of the Scientific Research Center Applied Geomechanics and Convergent Mining Technologies, Professor of the Department of Physical Processes of Mining Production and Geocontrol of the Mining Institute of NUST MISIS, e-mail: prof.eremenko@gmail.com,
M.A. Kosyreva², Cand. Sci. (Eng.), R&D Project Engineer, e-mail: marinkosyreva@gmail.com,
¹ Alliance Altyn LLC, Bishkek, Kirgizia, 
² NUST MISIS, Research Center for Applied Geomechanics and Convergent Technologies in Mining, 119049, Moscow, Russia.

V.A. Eremenko, e-mail: prof.eremenko@gmail.com.

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