Research Article
Upper Bound Solution of Surrounding Rock Pressure for Deep Cavity Using Nonlinear Hoek–Brown Failure Criterion
Table 5
Upper bound solution of the surrounding rock pressure
q at different GSI and
.
| | GSI | q (kPa) | | mi = 5 | mi = 10 | mi = 15 | mi = 20 | mi = 25 | mi = 30 |
| | 10 | 1117.3 | 505.8 | 301.4 | 199.8 | 140.0 | 101.3 | | 15 | 896.2 | 394.9 | 227.7 | 145.3 | 97.5 | 67.4 | | 20 | 718.9 | 306.0 | 169.0 | 102.5 | 64.9 | 43.4 | | 25 | 575.5 | 234.2 | 122.2 | 69.2 | 41.7 | 25.0 | | 30 | 458.6 | 176.1 | 85.1 | 40.7 | 27.3 | 16.1 | | 35 | 362.6 | 129.0 | 56.2 | 29.3 | 15.5 | 6.7 |
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