| 发明名称 |
METHOD FOR OPEN CUTTING DEPOSITS |
| 摘要 |
FIELD: mining. SUBSTANCE: method for open cutting deposits destroyed by cones of depression includes opening quarrel steps to form preventive pillar in the form of a ridge and filling the cone with the rock from the preventive pillar. EFFECT: effective working the deposit. |
| 申请公布号 |
RU95103575(A) |
申请公布日期 |
1997.01.20 |
| 申请号 |
RU19950103575 |
申请日期 |
1995.03.14 |
| 申请人 |
AKTSIONERNOE OBSHCHESTVO "IRGIREDMET" |
发明人 |
KOVALENKO V.I.;BOBROV O.P.;JAROSLAVTSEV V.M.;BAJMASHEV Z.G. |
| 分类号 |
E21C41/26 |
主分类号 |
E21C41/26 |
| 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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