GBM Product Guide 240A System0 pages

"

Operators of the 240A Jacking Frame have

nnnn

independent control of pipe jacking and rotation

nnnn

for smooth and continuous advancement.

nnnn

The universal auger bore rig adapter and

nnnn

mounting hardware for the 240A Jacking Frame

nnnn

fits 30-72 inch (762-1,829 mm) track.

nnnn

Weld-on reaming heads are available from 12-72

nnnn

inch (305-1,829 mm) OD to match steel casing

nnnn

pipe diameter.

nnnn

.1- >

nnnn

GUIDED BORING - 240A SYSTEM

nnnn

■■■■■■

nnnn

One of the most common applications for the single stage 240A

nnnn

Jacking Frame is its use in conjunction with a standard auger

nnnn

boring rig. With the GBM providing guidance, contractors

nnnn

are empowered with the ability for longer drives, extreme

nnnn

accuracy and the added benefit of reduced casing diameters.

nnnn

In addition, when the GBM is used in this manner, it can also

nnnn

act as a probing tool for uncharted obstacles with minimal

nnnn

commitment.

nnnn

When using the 240A Jacking Frame with an auger boring rig,

nnnn

the pilot tubes establish the desired path on line and grade.

nnnn

The jacking frame is mounted on the auger bore rig rails with

nnnn

a universal adapter. The theodolite and camera are mounted

nnnn

between the jacking frame and auger bore rig to sight-down

nnnn

the center of the pilot tubes. A LED target is placed in the

nnnn

steering head. The theodolite's cross hairs are aligned to the

nnnn

drives line and grade and the camera relays this data to the

nnnn

computer-controlled digital monitor, mounted to the GBM

nnnn

jacking frame, where the operator assesses the targets position.

nnnn

If a line and grade adjustment is necessary, the operator turns

nnnn

the pilot tube string in the appropriate direction, which rotates

nnnn

the steering head and the angled steering head displaces the

nnnn

ground until it's back on line and grade. Once the pilot tubes

nnnn

span the full length of the drive, the weld-on reaming head

nnnn

is connected to the last pilot tube section and welded to the

nnnn

first steel casing section. As the pipe string advances, pilot tube

nnnn

sections are removed from the reception area.

nnnn

When used as a standalone unit, the 240A Jacking Frame

nnnn

gives operators the ability to install up to 24-inch (610 mm)

nnnn

OD, one-meter pipe from a 10-foot (3 m) shaft. Our distinctive

nnnn

dual-walled pilot tube design provides a means to lubricate

nnnn

throughout the drive, thus minimizing jacking force and

nnnn

rotational torque. The 240A Jacking Frame is hydraulically

nnnn

powered with any of our power packs and controlled with an

nnnn

in-shaft remote pendant.

nnnn

Specifications

nnnn

Product	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)

nnnn

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)

nnnn

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)

nnnn

Note: Akkerman standard sizes can be customized to suit project needs.

nnnn

Theodolite/Camera

nnnn

Sighted Down

nnnn

Center 01 Pilot Tube*

nnnn

OBM Single Stage Frame

nnnn

With Auger Boring Adapter Doa,.WaHed

nnnn

/ Pilot Tube

nnnn

/ J /

nnnn

Auger Boring

nnnn

Rails

nnnn

The Guidance System provides line and grade

nnnn

accuracy up to 487-feet (150 m) and beyond.

nnnn

Akkerman's digital guidance system consists of

nnnn

a theodolite, LED target, camera and computer-

nnnn

controlled digital monitor.

nnnn

The 240A Jacking Frame, when operated as a

nnnn

stand alone unit, can be used to expertly installs

nnnn

up to 24-inch (610 mm) OD pipe.

nnnn

The pilot guide rod is used in place of a weld-on

nnnn

reaming head to reduce thrust at the face of the

nnnn

bore.

"