Sr. No. | Chainage (m) | Q-value for roof | Q-value for wall | Joint roughness number for crown & wall | Joint alteration number for crown & wall | Ultimate roof support pressure (kg/cm2) | Ultimate wall support pressure (kg/cm2) |
| Friction Angle
|
1 | 0 - 5 | 10.22 | 51.10 | 1.0 | 1.0 | 0.922 | 0.539 | 1.0 | 45 |
2 | 5 - 10, 200 - 205 | 16.33 | 81.65 | 1.0 | 1.0 | 0.789 | 0.461 | 1.0 | 45 |
3 | 10 - 20 | 12.25 | 61.25 | 1.0 | 2.0 | 0.868 | 0.508 | 0.5 | 27 |
4 | 20 - 30, 65 - 70, 75 - 80, 130 - 135, 160 - 165, 210 - 220 | 7.92 | 19.80 | 1.0 | 2.0 | 1.004 | 0.740 | 0.5 | 27 |
5 | 30 - 35, 50 - 55 | 15.33 | 76.65 | 1.0 | 1.0 | 0.805 | 0.471 | 1.0 | 45 |
6 | 35 - 40 | 14.67 | 73.35 | 1.0 | 1.0 | 0.817 | 0.478 | 1.0 | 45 |
7 | 40 - 45, 195 - 200, 205 - 210 | 15.83 | 79.15 | 1.0 | 1.0 | 0.797 | 0.466 | 1.0 | 45 |
8 | 45 - 50 | 11.88 | 59.40 | 1.0 | 2.0 | 0.877 | 0.513 | 0.5 | 27 |
9 | 55 - 60 | 10.89 | 54.45 | 1.0 | 1.0 | 0.903 | 0.528 | 1.0 | 45 |
10 | 60 - 65 | 12.38 | 61.90 | 1.0 | 2.0 | 0.865 | 0.506 | 0.5 | 27 |
11 | 70 - 75, 80 - 85 | 7.67 | 19.17 | 1.0 | 2.0 | 1.014 | 0.748 | 0.5 | 27 |
12 | 85 - 90 | 4.89 | 12.22 | 1.0 | 2.0 | 1.178 | 0.869 | 0.5 | 27 |
13 | 90 - 95, 155 - 160 165 - 175, 185 - 195 | 7.33 | 18.32 | 1.0 | 2.0 | 1.030 | 0.759 | 0.5 | 27 |
14 | 95 - 100 | 4.72 | 11.80 | 1.0 | 2.0 | 1.192 | 0.879 | 0.5 | 27 |
15 | 100 - 105, 125 - 130, 175 - 180 | 6.83 | 17.07 | 1.0 | 2.0 | 1.054 | 0.777 | 0.5 | 27 |
16 | 105 - 110 | 12.50 | 62.50 | 1.0 | 1.0 | 0.862 | 0.504 | 1.0 | 45 |
17 | 110 - 115 | 13.67 | 68.35 | 1.0 | 1.0 | 0.837 | 0.489 | 1.0 | 45 |
18 | 115 - 120 | 14.17 | 70.85 | 1.0 | 1.0 | 0.827 | 0.484 | 1.0 | 45 |
19 | 120 - 125 | 10.56 | 52.80 | 1.0 | 1.0 | 0.912 | 0.533 | 1.0 | 45 |
20 | 135 - 155 | 4.56 | 11.40 | 1.0 | 2.0 | 1.206 | 0.889 | 0.5 | 27 |
21 | 180 - 185 | 4.17 | 10.42 | 1.0 | 2.0 | 1.243 | 0.916 | 0.5 | 27 |