Table 12 Verification results of the new tunnel cases.
No | Project | W | H (MPa) | D | S | B | G | I | BN | Q | RMR | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Baihetan hydropower station PD6265 | Medium | 60 | Good | Fractured block | 3 | Dry | Medium | 84.0% III | 3.65 III | 61 II | III |
2 | Medium | 60 | Good | Fractured block | 3 | Wet | Medium | 84.0% III | 1.36 III | 66 II | III | |
3 | Medium | 75 | Good | Block | 2 | Wet | Medium | 60.0% II | 42.95 II | 63 II | II | |
4 | Medium | 70 | Good | Fractured block | 2 | Wet | Medium | 60.0% II | 173.2 I | 68 II | II | |
5 | Slight | 100 | Good | Fractured block | 2 | Wet | Medium | 60.0% II | 56.8 II | 72 I | II | |
6 | Slight | 100 | Good | Block | 2 | wet | Medium | 60.0% II | 114 I | 70 II | II | |
7 | Lenggu hydropower station CPD0168 | Slight | – | Ordinary | Fractured block | 3 | – | – | 63.8% III | 1.9 III | 45 III | III |
8 | Slight | – | Good | Mosaic structure | 3 | – | – | 63.8% III | 3.1 III | 43 III | III | |
9 | Slight | – | Ordinary | Fractured block | 3 | – | – | 63.8% III | 1.1 III | 38 IV | IV | |
10 | Duncun tunnel69 | Severe | 15 | – | Fragmented structure | 5 | Moist | Medium | 90.9% V | 0.06 V | – | V |
