发明名称 METHOD FOR CONTROL OF SINKING OF WORKED ROCK AT CHAMBER DEVELOPMENT OF FLAT-LYING POTASSIUM SEAMS
摘要 FIELD: mining industry. SUBSTANCE: according to method, created are relieving pillars. Occurred in these pillars at deformation is zone of all-round compression. Created as inter-chamber pillars are pillars in which rock at deformation is subjected to dual-axis compression. Chambers are arranged between relieving pillars. EFFECT: high efficiency. 1 dwgf
申请公布号 RU2103506(C1) 申请公布日期 1998.01.27
申请号 RU19960116660 申请日期 1996.08.13
申请人 AKTSIONERNOE OBSHCHESTVO "URALKALIJ" 发明人 ARTEMOV V.G.;PAPULOV L.M.;CHELPANOVA E.V.;ARTEMOV V.G.;PAPULOV L.M.;CHELPANOVA E.V.
分类号 E21C41/00;(IPC1-7):E21C41/00 主分类号 E21C41/00
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