GBM Product Guide 240A System0 pages
Operators of the 240A Jacking Frame have
nnnnindependent control of pipe jacking and rotation
nnnnfor smooth and continuous advancement.
nnnnThe universal auger bore rig adapter and
nnnnmounting hardware for the 240A Jacking Frame
nnnnfits 30-72 inch (762-1,829 mm) track.
nnnnWeld-on reaming heads are available from 12-72
nnnninch (305-1,829 mm) OD to match steel casing
nnnnpipe diameter.
nnnn.1- >
nnnnGUIDED BORING - 240A SYSTEM
nnnn■■■■■■
nnnnOne of the most common applications for the single stage 240A
nnnnJacking Frame is its use in conjunction with a standard auger
nnnnboring rig. With the GBM providing guidance, contractors
nnnnare empowered with the ability for longer drives, extreme
nnnnaccuracy and the added benefit of reduced casing diameters.
nnnnIn addition, when the GBM is used in this manner, it can also
nnnnact as a probing tool for uncharted obstacles with minimal
nnnncommitment.
nnnnWhen using the 240A Jacking Frame with an auger boring rig,
nnnnthe pilot tubes establish the desired path on line and grade.
nnnnThe jacking frame is mounted on the auger bore rig rails with
nnnna universal adapter. The theodolite and camera are mounted
nnnnbetween the jacking frame and auger bore rig to sight-down
nnnnthe center of the pilot tubes. A LED target is placed in the
nnnnsteering head. The theodolite's cross hairs are aligned to the
nnnndrives line and grade and the camera relays this data to the
nnnncomputer-controlled digital monitor, mounted to the GBM
nnnnjacking frame, where the operator assesses the targets position.
nnnnIf a line and grade adjustment is necessary, the operator turns
nnnnthe pilot tube string in the appropriate direction, which rotates
nnnnthe steering head and the angled steering head displaces the
nnnnground until it's back on line and grade. Once the pilot tubes
nnnnspan the full length of the drive, the weld-on reaming head
nnnnis connected to the last pilot tube section and welded to the
nnnnfirst steel casing section. As the pipe string advances, pilot tube
nnnnsections are removed from the reception area.
nnnnWhen used as a standalone unit, the 240A Jacking Frame
nnnngives operators the ability to install up to 24-inch (610 mm)
nnnnOD, one-meter pipe from a 10-foot (3 m) shaft. Our distinctive
nnnndual-walled pilot tube design provides a means to lubricate
nnnnthroughout the drive, thus minimizing jacking force and
nnnnrotational torque. The 240A Jacking Frame is hydraulically
nnnnpowered with any of our power packs and controlled with an
nnnnin-shaft remote pendant.
nnnnSpecifications
nnnnProduct | Min. Shaft Size | Pipe OD | Max. Torque | Tonage |
240A | 10' (3 m) | 24' (610 mm) | 10,500 ibf-ft (14,238 N-m) | 100 ton (91 mt) |
Product | HP | Fuel Tank Capacity | Hydraulic Reservoir | Weight |
P100Q | 99 HP (74 kW) | 100 gal (378 L) | 40 gal (151 L) | 6,220 lbs (2,821 kg) |
Product | Length | OD | Max.Thrust/ Torque | Assembly Weight |
11'Thrust Casings | 39.37" (1 m) | iroo (279 mm) | 100 ton (91 mt) | 258 lbs (109 kg) |
30" Pilot Tubes | 30- (762 mm) | 4.1" (104 mm) | 12,000 Ibf-ft (16,272 N-m) | 1.050 lbs (476 kg) |
Note: Akkerman standard sizes can be customized to suit project needs.
nnnnTheodolite/Camera
nnnnSighted Down
nnnnCenter 01 Pilot Tube*
nnnnOBM Single Stage Frame
nnnnWith Auger Boring Adapter Doa,.WaHed
nnnn/ Pilot Tube
nnnn/ J /
nnnnAuger Boring
nnnnRails
nnnnThe Guidance System provides line and grade
nnnnaccuracy up to 487-feet (150 m) and beyond.
nnnnAkkerman's digital guidance system consists of
nnnna theodolite, LED target, camera and computer-
nnnncontrolled digital monitor.
nnnnThe 240A Jacking Frame, when operated as a
nnnnstand alone unit, can be used to expertly installs
nnnnup to 24-inch (610 mm) OD pipe.
nnnnThe pilot guide rod is used in place of a weld-on
nnnnreaming head to reduce thrust at the face of the
nnnnbore.
"