Geometry | Strength | Support | Method |
P. Tabular & Moderately Steep | L. | X. Unsupported | 1. Cut and Fill |
Q. Tabular & Flat | M. Moderate | Y. Artificially Supported | 2. Block Caving |
R. Massive and Steep | N. Weak | Z. -supported | 3. Room and Pillar |
Activity | A | B | C | D | E |
Duration (week) | 5 | 6 | 8 | 3 | 4 |
Crashing cost per week (lakh INR) | 4.0 | 2.5 | 2.0 | 3.0 | 4.0 |