Research Article
Numerical Analysis of the Effect of Heterogeneity on Underground Roadway Stability under Dynamic Loads
Table 2
Surface displacement data of surrounding rock.
| | Stations | Roof | Two ribs | | Value of sag (mm) | The cumulative sag of the first 20 d (mm) | The cumulative sag of 20∼50 d (mm) | The cumulative sag of 50∼70 d (mm) | Value of convergence (mm) | The cumulative convergence of the first 20 d (mm) | The cumulative convergence of 20∼50 d (mm) | The cumulative convergence of 50∼70 d (mm) |
| | D1 | 150 | 97.0 | 38.2 | 14.8 | 355 | 226.4 | 91.2 | 37.4 | | D2 | 152.9 | 100 | 3 8.2 | 14.7 | 364.7 | 235.2 | 85.2 | 44.3 | | D3 | 185.2 | 108.8 | 47.1 | 29.3 | 397 | 247.0 | 102.9 | 47.1 | | D4 | 194.1 | 120.6 | 47.1 | 26.5 | 394.1 | 252.9 | 100.0 | 41.2 | | D5 | 214.7 | 132.4 | 55.8 | 26.5 | 402.9 | 250.0 | 102.9 | 50.0 | | D6 | 211.7 | 129.4 | 52.9 | 29.4 | 397.0 | 258.8 | 94.1 | 44.1 | | D7 | 208.8 | 129.4 | 52.9 | 26.5 | 394.1 | 241.2 | 105.8 | 47.1 |
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