Table 3 Numerical calculation model parameters.
From: PPV distribution of sidewalls induced by underground cavern blasting excavation
S. no. | Height of cavern sidewall \(b\) (m) | Length of cavern sidewall \(a\) (m) | Length–height ratio | Ground stress σ (MPa) | Model length | Model width | Model height |
|---|---|---|---|---|---|---|---|
1 | 12 | 12 | 1 | 20 | 144 | 60 | 72 |
2 | 12 | 36 | 3 | 20 | 216 | 60 | 72 |
3 | 12 | 60 | 5 | 20 | 360 | 60 | 72 |
4 | 12 | 84 | 7 | 20 | 504 | 60 | 72 |
