MINING METHOD
In the selection of mining method to be applied is determined by the characteristics of the Field, Deposit, Environmental and most economical operation costs.The factors that determine the selection of mining method:
- Characteristics of Deposit: The slope, size and distribution, geological structures (faults, fractures and multiplication)- Consideration of topographical and Hydrology (rainfall and ground water)- Geotechnical Considerations- Economic Considerations- Environmental Considerations:- Availability of tools- Production Rate- The quality of ore / coal is expected = Is it necessary "Selective Mining"- Distance from PIT to dispose of Waste Dump / Crusher
IMPLEMENTING BASIC MINING ARE OPEN:
WHEN MINING OPERATIONS RESULTS OF OPEN THIS WILL GIVE YOU THAT RESULTS IN MINING profitable THEN DO NOT USUALLY WHEN OPEN AND ALTERNATIVE Wanted UNDERGROUND MINING.
ECONOMIC / least MINING OPERATIONS IN OPEN THIS USUALLY indicated by the ratio of Peel (STRIP RATIO). Examples of boundary S / R in some job site PAMA:
IMM 5.8 bcm of Land: one ton of coal
Adaro 2.4 bcm of Land: one ton of coal
Petangis 6 bcm of Land: one ton of coal
KPC 6:02 bcm Land: 1 ton of coal
SO HAVE MINE NOTING THE SUPERVISORY MINING IN THIS FOR THE IMPLEMENTATION OF NOT EXCEEDING / REDUCE LIMITS ARE ALREADY PLANNED due to it will REDUCE OPERATING PROFIT LEVEL IS MINE.
WHEN MINING OPERATIONS RESULTS OF OPEN THIS WILL GIVE YOU THAT RESULTS IN MINING profitable THEN DO NOT USUALLY WHEN OPEN AND ALTERNATIVE Wanted UNDERGROUND MINING.
ECONOMIC / least MINING OPERATIONS IN OPEN THIS USUALLY indicated by the ratio of Peel (STRIP RATIO). Examples of boundary S / R in some job site PAMA:
IMM 5.8 bcm of Land: one ton of coal
Adaro 2.4 bcm of Land: one ton of coal
Petangis 6 bcm of Land: one ton of coal
KPC 6:02 bcm Land: 1 ton of coal
SO HAVE MINE NOTING THE SUPERVISORY MINING IN THIS FOR THE IMPLEMENTATION OF NOT EXCEEDING / REDUCE LIMITS ARE ALREADY PLANNED due to it will REDUCE OPERATING PROFIT LEVEL IS MINE.
Examples of the Open For Coal Mining Method
A. Contour Mining
This system is applied to the coal deposits are exposed (out crop) on the slopes of the mountain / hill. Mining activity was started by stripping (overburden) along the slope (exposed coal) follow contour lines, soil peeling driven and dumped in the lower slope region, followed coal mining.
Advantages: Land enough in pushing a bulldozer, or if you must use a transport truck on the road will decrease.
This system is applied to the coal deposits are exposed (out crop) on the slopes of the mountain / hill. Mining activity was started by stripping (overburden) along the slope (exposed coal) follow contour lines, soil peeling driven and dumped in the lower slope region, followed coal mining.
Advantages: Land enough in pushing a bulldozer, or if you must use a transport truck on the road will decrease.
B. Mining Area.
This system is used for coal deposits are nearly flat, mining began from the initial mining area (box cut), where the soil of this area of the box cut will be discharged into the area of waste ground outside the pit and later dumped behind the excavation has been mined.
This system is used for coal deposits are nearly flat, mining began from the initial mining area (box cut), where the soil of this area of the box cut will be discharged into the area of waste ground outside the pit and later dumped behind the excavation has been mined.
Applied to the coal deposits that have a great inclination (steep), usually applied in a thick coal seam for single coal seam or who have many layers (multiple seams), due to the steep slope to get more much-needed coal mine deep enough . Generally, the excavation system used ladder system (multi-benching)
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