Systems and methods of underhand closed bench mining

1. A method of mining, comprising:

drilling a first plurality of blast holes along a length of a horizontal stope;

blasting explosive within the first plurality of blast holes;

recovering fragmented ore from the horizontal stope;

stabilizing the horizontal stope via a first engineered roof;

drilling a second plurality of blast holes along the length of the horizontal stope;

blasting explosive within the second plurality of blast holes;

recovering fragmented ore from the horizontal stope; and

stabilizing the horizontal stope via a second engineered roof, such that the horizontal stope is mined in a downward direction, wherein the explosive is sufficient to cause a seismic event in the downward direction.

2. The method of claim 1 , wherein each of the first plurality of blast holes and the second plurality of blast holes are disposed on a floor of the horizontal stope.

3. The method of claim 1 , wherein the first engineered roof includes backfill material.

4. The method of claim 1 , wherein the first plurality of blast holes and the second plurality of blast holes are injected with pumpable emulsion explosives.

5. The method of claim 1 , wherein the first plurality of blast holes are patterned in a square configuration.

6. The method of claim 5 , wherein the square configuration includes nine blast holes and eight dead holes.

7. The method of claim 1 , wherein the length of the horizontal stope is fragmented in one simultaneous blast.

8. The method of claim 1 , wherein the length of the horizontal stope is approximately three hundred feet.

9. A method of mining, comprising:

drilling a first plurality of blast holes along a length of a horizontal stope, wherein at least one slip-on fault is disposed under the horizontal stope;

blasting explosive within the first plurality of blast holes;

recovering fragmented ore from the horizontal stope;

drilling a second plurality of blast holes along the length of the horizontal stope;

blasting explosive within the second plurality of blast holes;

recovering fragmented ore from the horizontal stope, such that the horizontal stope is mined in a downward direction, wherein the explosive is sufficient to cause a seismic event at the slip-on fault.

10. The method of claim 9 , wherein each of the first plurality of blast holes and the second plurality of blast holes are disposed on a floor of the horizontal stope.

11. The method of claim 10 , wherein the first plurality of blast holes are drilled at a first starting depth, wherein the second plurality of blast holes are drilled at a second starting depth, and wherein the first starting depth is at least twenty feet above the second starting depth.

12. The method of claim 9 , wherein the first plurality of blast holes and the second plurality of blast holes are injected with pumpable emulsion explosives.

13. The method of claim 9 , wherein the first plurality of blast holes are patterned in a square configuration.

14. The method of claim 13 , wherein the square configuration includes nine blast holes and eight dead holes.

15. The method of claim 9 , wherein the length of the horizontal stope is fragmented in one simultaneous blast.

16. The method of claim 9 , wherein the length of the horizontal stope is approximately three hundred feet.

17. The method of claim 9 , wherein a depth of the first plurality of blast holes is approximately 26 feet deep.

18. The method of claim 9 , wherein the first plurality of blast holes includes a burn cut and a plurality of patterned blast hole rings.