Shaft Sinking
A. sectional SHAFT
1.Faktor which determine the shape of the shaft cross-section:
2. Factors that determine the size of the shaft
When the function shaft to "hoisting shafts", its size is determined by:
Cross section of a shaft with a compartment
B. Excavation methods SHAFT
Undetermined order methods, procedures and completeness excavation, dibperlukan:
- Very incompetent rock (loose material)
- Competent rock
- Very competent rock with cracks and fissures
- Massive very competent rock
Type shaft (vertical or oblique)
Cross-sectional shape and size of the shaft
Type and size of its lining
Excavation facilities available
Methods of excavation shaft (shaft sinking) basically consists of 3 methods:
1.Metode manual (shaft sinking by manual method)
2.Metode conventional (shaft sinking by conventional method)
3.Metode Unconventional (shaft sinking by rotary drilling)
C. SINKING PLANT & EQUIPMENT HOIST
For excavation equipment needful shaft, either by conventional methods or not is called the sinking plant, while the hoist equipment all components / equipment needed to lift the excavation, workers and material in a quarry / mining.
1.Faktor which determine the shape of the shaft cross-section:
- The physical properties of ground
- hoisting system
- Material for liner
- Age shaft
- Depth of the shaft will be made
2. Factors that determine the size of the shaft
- Amount of mine production
- Number of compartments (bulkhead) shafts are made
- function of shaft
When the function shaft to "hoisting shafts", its size is determined by:
- Outer size dr hoisting equipment (cage or skip)
- Leisure distance (clearance) between the walls of the shaft conveyance: local steel> 150 mm, local wood> 200 mm
- Hoisting system (single or tandem), min. 200 mm
- The distance between the conveyance bunton (iron baffle) fitted with a paddling guide> 200 mm. If there are savings> 70 mm
- Width of bunton
Cross section of a shaft with a compartment
B. Excavation methods SHAFT
Undetermined order methods, procedures and completeness excavation, dibperlukan:
- Characteristics of the ground:
- Very incompetent rock (loose material)
- Competent rock
- Very competent rock with cracks and fissures
- Massive very competent rock
Type shaft (vertical or oblique)
Cross-sectional shape and size of the shaft
Type and size of its lining
Excavation facilities available
Methods of excavation shaft (shaft sinking) basically consists of 3 methods:
1.Metode manual (shaft sinking by manual method)
2.Metode conventional (shaft sinking by conventional method)
3.Metode Unconventional (shaft sinking by rotary drilling)
C. SINKING PLANT & EQUIPMENT HOIST
For excavation equipment needful shaft, either by conventional methods or not is called the sinking plant, while the hoist equipment all components / equipment needed to lift the excavation, workers and material in a quarry / mining.
