Research Article
Stability Analysis of Surrounding Rock of Large Section Ultradeep Shaft Wall
Table 3
Normalization treatment of surrounding rock stress at different depths.
| Position (m) | σ1 (MPa) | σ3 (MPa) | σc (MPa) | Normalized value of deviatoric stress (MPa) | Normalized value of average stress (MPa) | Judgment result |
| −950 | 38.481 | 20.586 | 102.5 | 0.09 | 0.29 | I | −1050 | 41.981 | 22.686 | 102.5 | 0.09 | 0.32 | I | −1150 | 45.481 | 24.786 | 102.5 | 0.10 | 0.34 | I | −1250 | 48.981 | 26.886 | 102.5 | 0.11 | 0.37 | I | −1350 | 52.481 | 28.986 | 102.5 | 0.11 | 0.40 | I | −1450 | 55.981 | 31.086 | 102.5 | 0.12 | 0.42 | I |
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