Process and system for striping and mining solid ore rock masses of surface mine
A kind of mining and hard technology, applied in the stripping process and system field of hard ore rock mass in open-pit mines, can solve the problems of doubtful parameter rationality and economy, secondary modification of mining operations, no consideration of changes, etc., to achieve reduction Effects of secondary blasting amount, improved drilling process, reduction of bulk rate and residual rate of blasting root
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[0025] According to an embodiment of the present invention, such as figure 1 The stripping process shown for a hard ore mass in an open pit mine involves drilling an array of blastholes:
[0026] Blasting hole 11, blasting hole 12, blasting hole 13, blasting hole 14, ...;
[0027] Blast hole 21, blast hole 22, blast hole 23, blast hole 24, ...;
[0028] Blast hole 31, blast hole 32, blast hole 33, blast hole 34, ...;
[0029] ………………………………………….
[0030] The gun hole array includes several rows of gun holes, such as:
[0031] The blast hole of the first row: blast hole 11, blast hole 12, blast hole 13, blast hole 14, ...;
[0032] Second row of blastholes: blasthole 21, blasthole 22, blasthole 23, blasthole 24, ...;
[0033] The blastholes of the third row: blastholes 31, blastholes 32, blastholes 33, blastholes 34, ...; and so on.
[0034] The blastholes of adjacent rows (such as between the first row and the second row, between the second row and the third row) are along...
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