Bottom structure arrangement mode suitable for inclined and steeply inclined thin ore body mining
The invention discloses a bottom structure arrangement mode suitable for inclined and steeply inclined thin ore body mining, which is characterized in that an upper deep hole rock drilling gate way (3) is tunneled between upper deep hole rock drilling gate way connection roadways (2) along the ore b...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a bottom structure arrangement mode suitable for inclined and steeply inclined thin ore body mining, which is characterized in that an upper deep hole rock drilling gate way (3) is tunneled between upper deep hole rock drilling gate way connection roadways (2) along the ore body trend, and ore body sections between ore loading access roads (5) are communicated to form a lower middle hole rock drilling gate way (6); an upward undercutting middle hole (8) is drilled in the lower middle hole drilling gate way (6) by taking the cutting raise as the center and adopting a middle hole drilling machine or a mining drill jumbo; drilling a downward stoping deep hole (9) by adopting a mining drill jumbo in the upper deep hole drilling gate way (3) by taking the cutting raise as a free surface; taking the cutting raise as a free surface, and carrying out lateral caving blasting on the blast holes row by row in a graded and segmented manner; and after each time of blasting, shoveling and loading eq |
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