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Akkerman Equipment Systems Chart0 pages
AKKERMAN EQUIPMENT SYSTEMS
ccavator Shiel
///
T^ffnel Boring
lachine (TBM)
Guided Boring
Machine (GBM)
■ icm
Microtunnel Boring
lachine (MTBM)
issure
Machine (EPBM)
ce
Ground Conditions
• Medium to stiff clay
• Dry or dewatered
• Weathered rock
• Non-pressurized ground
water
Medium to stiff clay
Dry or dewatered
Weathered rock
Non-pressurized ground
water
1 Displaceable, N < 50 to
non-displaceable (with use
of Eliminator tooling)
1 Non-pressurized ground
water
High ground water table
Wide range from sand to
rock
1 Soft material requiring
foam slurry to balance
conditions to prevent
settlement
Common Base
Machine Sizes
Common Drive
Lengths
Common Guidance
System
100-168 in. OD*
(2,540-4,267 mm)
48 -94.5 in.OD*
(1,200-2,400 mm)
4-48 in.OD*
(102-1,219 mm)
30-94.5 in.OD*
(762 - 2,400 mm)
102+in.OD*
(2,591+mm)
1,000+ Ift. (305 m)
1,000+ Ift. (305 m)
328 ift. (100 m)
1,000+ Ift. (305 m)
Pipe jacking
1,000 Ift. (305 m)
Two-pass
contingent on
specifications**
Laser, passive
Laser, passive
Theodolite, active
Laser, active
Laser, active
*Akkerman standard sizes can be customized to suit project needs.
**Two-pass defined as segment erecting, liner plate and ring-beam and lagging installations.
Minimum
Shaft Size
Min.shaft = 22.5 ft. (7 m)
22.5 ft.
Min. shaft = 22.5 ft. (7 m)
22.5 ft.
Min. shaft = 8 ft. (2.4 m)
©
Min. shaft = 16 ft. (4.8 m)
Project specific
"
