Research Article
An Innovative Elastoplastic Analysis for Soft Surrounding Rock considering Supporting Opportunity Based on Drucker-Prager Strength Criterion
Table 1
The zones’ ranges of surrounding rock of roadway.
| | Consideration of factors | Plastic residual zone (m) | Plastic softening zone (m) | Elastic zone (m) |
| | No- supporting | 4.77 | 6.58 | ∞ | | Supporting | 3.86 | 5.60 | ∞ | | Supporting (considering “space effect” V = 10 m/d) | 3.83 | 5.55 | ∞ | | Supporting (considering “space effect” V = 6 m/d) | 3.79 | 5.48 | ∞ | | Supporting (considering “space effect” V = 3 m/d) | 3.71 | 5.32 | ∞ |
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