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
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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