| Selection Chart
Enginneering Considerations
Geological Considerations
U/G Mining Costs
Return to U/G Menu
|
|
| |
|
Unsupported |
|
|
| Factor |
Room
and Pillar |
Stope
and Pillar |
Shrinkage |
Sublevel |
| Ore Strength |
Weak / Mod |
Mod / Strong |
Strong |
Mod / Strong |
| Rock Strength |
Mod / Strong |
Mod / Strong |
Strong |
Fairly Strong |
| Deposit Shape |
Tabular |
Tabular/Lenticular |
Tabular/Lenticular |
Tabular/Lenticular |
| Deposit Dip |
Low / Flat |
Low / Mod |
Fairly Steep |
Fairly Steep |
| Deposit Size |
Large / Thin |
Any |
Thin / Mod |
Thick / Mod |
| Ore Grade |
Moderate |
Low / Mod |
Fairly High |
Mod |
| Ore Uniformity |
Uniform |
Variable |
Uniform |
Uniform |
| Depth |
Shallow/Mod |
Shallow/ Mod |
Shallow / Mod |
Mod |
| |
|
|
|
|
| |
|
Supported |
|
|
Factor |
Cut
& Fill |
Stull |
Square
Set |
|
| Ore Strength |
Mod / Strong |
Strong |
Weak |
|
| Rock Strength |
Weak |
Mod |
Weak |
|
| Deposit Shape |
Tab/Irregular |
Tab/Irregular |
Any |
|
| Deposit Dip |
Fairly Steep |
Mod/ Steep |
Any |
|
| Deposit Size |
Thin / Mod |
Thin/Mod |
Usually small |
|
| Ore Grade |
Fairly High |
Fairly High |
High |
|
| Ore Uniformity |
Variable |
Variable |
Variable |
|
| Depth |
Mod / Deep |
Mod/Deep |
Deep |
|
| |
|
|
|
|
| |
|
Caving |
|
|
Factor |
Longwall |
Sublevel
Caving |
Block
Caving |
|
| Ore Strength |
Any |
Mod/Strong |
Weak/Mod |
|
| Rock Strength |
Weak/Mod |
Weak |
Weak/Mod |
|
| Deposit Shape |
Tabular |
Tabular/Massive |
Massive/Thick |
|
| Deposit Dip |
Low / Flat |
Fairly Steep |
Fairly Steep |
|
| Deposit Size |
Thin/ Wide |
Large Thick |
Very Thick |
|
| Ore Grade |
Mod |
Mod |
Low |
|
| Ore Uniformity |
Uniform |
Mod |
Uniform |
|
| Depth |
Mod / Deep |
Mod |
Mod |
|
Return
to U/G Menu |
|