| 发明名称 |
METHOD FOR JOINING INCLINED HAULAGE BERMS ON A SECTION ADJACENT TO A SAFETY BERM |
| 摘要 |
<p>The inventive method for joining inclined haulage berms makes it possible to exclude useless horizontal inserts from a transport artery. The inventive method consists in deepening haulage and safety berms at a specified length in a combine and simultaneous manner. The invention makes it possible to reduce the distance for removing mined rock from an open-pit mine.</p> |
| 申请公布号 |
WO2008048140(A1) |
申请公布日期 |
2008.04.24 |
| 申请号 |
WO2007RU00278 |
申请日期 |
2007.05.29 |
| 申请人 |
ZHELYABOVSKY, YURY GRIGORYEVICH |
发明人 |
ZHELYABOVSKY, YURY GRIGORYEVICH |
| 分类号 |
E21C41/26 |
主分类号 |
E21C41/26 |
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