| 发明名称 |
METHOD FOR EXCAVATING MINERALS FROM PIT WALLS |
| 摘要 |
FIELD: mining. SUBSTANCE: berm haulages are formed within working contour specified by slope stability. Then they are connected with access ramp on pit walls. EFFECT: this allows one to extract minerals up to higher extent. 4 dwg |
| 申请公布号 |
RU95102693(A) |
申请公布日期 |
1996.12.27 |
| 申请号 |
RU19950102693 |
申请日期 |
1995.02.23 |
| 申请人 |
AKTSIONERNOE OBSHCHESTVO "GAJSKIJ GORNO-OBOGATITEL'NYJ KOMBINAT" |
发明人 |
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| 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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