Table 10 Slope Mass Rating (SMR) description (Romana 1993)
Class | I | II | III | IV | V |
|---|---|---|---|---|---|
SMR score | 81–100 | 61–80 | 41–60 | 21–40 | 0–20 |
Weight | 3 | 9 | 27 | 54 | 81 |
Description | Very good | Good | Moderate | Bad | Very bad |
Stability | Very stable | Stable | Moderate | Not stable | Very not stable |
Structure | None | A few of the blocks | Some or many of the block | Planar or major failure | Big planar plane or soil |