The invention relates to a mechanized upward segmental
recovery method. The
recovery method includes the following steps of (1) conducting segmentation on a
recovery field; (2) conducting arrangementof blast holes, wherein the 0-th row of blast holes are distributed along a segmentation line of the recovery field, the -1-th row, -2-th row...and -i-th row of blast holes and the 1-st row, 2-nd row...and n-th row of blast holes are sequentially distributed in a first segment and a second segment respectively in the direction away from the 0-th row of blast holes, the orifices of the 0-th row ofblast holes are positioned in the segmentation line, the array
pitch between the 0-th row and the orifices of the -1-th row of blast holes is 1.4 m, the array
pitch between the 0-th row and the orifice bottoms of the -1-th row of blast holes is 0.8 m, the array
pitch between the 1-st row and the orifices of the 0-th row of blast holes is 2.3 m, the array pitch between the 1-st row and the orificebottoms of the 0-th row of blast holes is 1.4 m, the array pitch between the 2-nd row and the orifices of the 1-st row of blast holes is 0.5 m, the array pitch between the 2-nd row and the orifice bottoms of the 1-st row of blast holes is 1.5 m, the array pitch between the 3-rd row and the orifices of the 2-nd row of blast holes is 1.0 m, the array pitch between the 3-rd row and the orifice bottoms of the 2-nd row of blast holes is 1.5 m, the -1-th row, -2-th row and -i-th row of blast holes and the 3-rd row, 4-th row and n-th row of blast holes are all vertical blast holes facing upwards, andthe array pitch of these rows is 1.4 m; (3) conducting segmental blasting for discharging ore. The
recovery method has the advantages that the safety is high, the
recovery effect is great, and damageof the ore is small.