Move from open pit mining to underground mining

1. Open pit above - UG below

2. Wastage management

2.1. Nearby dump site

3. Safety measurements

3.1. Safety measurements at surface

4. Cut-off grade

4.1. known economic grade

5. UG Mining Method

5.1. Long wall

5.2. Cut and Fill

6. UG Ventilation System

6.1. Sufficient air

6.1.1. Workers

6.1.2. Machines

6.2. Poisinous gases

6.2.1. Vent out

6.3. Dusting

6.3.1. Supression

6.3.2. Vent out

7. UG Machineries

7.1. Dozers

7.2. continuous miners

8. UG Waste management

8.1. dump as supportive material

8.2. Move to surface

9. UG Ground water

9.1. Acid Mine Drainage

9.2. Dewatering

9.3. Contamination

9.4. Flooding

10. UG Safety Measurements

10.1. Dangeous gases

10.2. Personnal transporting

10.3. Safety in shafts

11. UG Power Supply Unit

11.1. For lighting

11.2. Equipments

11.3. Communication

12. UG Shaft sinking

12.1. Personal transport

12.2. Material transport

13. Mining Method

13.1. Open pit method

14. Machineries

14.1. Open pit machines