Research Article
A Study of Millisecond Blasting on High Bench at Barun Iron Ore Operation
Table 4
Peak effective stress of the inspection points under the millisecond blasting.
| Initiation method | Peak effective stress (MPa) | Initiation location 0 m | 0.5 m | 1.0 m | 1.5 m | Difference between maximum and minimum |
| 3-1 | 9.37 | 9.25 | 9.05 | 10.36 | 1.31 | 3-2 | 10.02 | 10.09 | 14.50 | 13.23 | 4.48 | 4-1 | 15.80 | 15.40 | 15.55 | 15.46 | 0.40 | 4-2 | 14.38 | 14.14 | 14.18 | 14.45 | 0.07 | Difference between maximum and minimum | 6.43 | 6.15 | 6.50 | 5.10 | /// |
|
|