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PIPE JACKING & TUNNELING

ACCESSORIES

Keyhole Jacking Frame

Keyhole Jacking Frames

800-1,200 t Thrust Capacity

Keyhole Jacking Frames offer a high capacity jacking frame from a 20 - 32-ft. shaft. They feature 800 - 1,200 tons of thrust capacity to advance pipe with a maximum 114-in. OD in 10-ft. lengths. Smaller pipe can be used with a thrust adapter. Keyhole jacking frames are configured with and without a dirt bucket bay for pipe jacking and microtunneling applications. Keyed blocks on the hydraulic jacking cylinders continuously advance the MTBM or TBM and a winch is used to retract the thrust ring.

2325B/D & 2325B/E Bentonite & Lubrication Pump

Pumps 1 & 2 - up to 16 gpm @ 2,500 psi

The 2325B/D & 2325B/E Bentonite and Lubrication Pumps offer operators independent flow control of pumping applications of water, and water with polymer with a Marshal Funnel viscosity of up to 50 seconds with 2,500 psi of pressure. The pumps features independent or a combination of 6, 10 or 16 gpm fluid pressure output for all pipe jacking and tunneling operations. The 2325B/D features a 3,000 rpm 30 HP diesel engine with an 18 gallon fuel tank. The 2325B/E features a 1,750 rpm 30 HP electric motor. Aggressive in-tank hydraulically-driven agitators keep mixtures blended in the two 325-gallon tanks. Mixtures are supplied from one or both tanks with bypass valves to allow for mixing and pumping, or pump supply from both tanks. The tanks are easily serviced at the open and close valve on the outlets. In-line suction strainers help prevent debris from entering the supply pumps.

Akkerman Bentonite
Injection System

Delivers Automated & Precise Bentonite Injection

The Akkerman Bentonite Injection System (ABIS) delivers automated bentonite injection at optimal tunnel intervals to reduce jacking forces and facilitate efficient and extended length pipe jacking. The ABIS package delivers totalized flow control at each valve location using touch screen functionality from the main system monitor. This ABIS system is comprised of a Control Skid housing the flow meter and Monitor Touch Screen. It connects up to 10 Remote Station Control Boxes, each with three linked Automated Injection Ball Valve Assemblies for point flow distribution onto the pipe annulus. The Remote Station Control Boxes are also capable of controlling and monitoring Intermediate Jacking Stations (IJSs) functions. The standard ABIS configuration equips microtunneling and pipe jacking contractors with components for a 2,000-linear foot tunnel, and the flexibility to suit a variety of project conditions. The distance between Remote Station Control Boxes and Automated Injection Ball Valve Assemblies is determined by the contractor and individual project requirements.

EH2250 Bentonite Pump

EH2250 Bentonite Pump

(2) 250 gal Tanks, 250 psi

The electro-hydraulic EH2250 Bentonite Pump is used to lubricate the outside of the pipe to ease thrust loads between the pipe and ground. The EH2250 contains two 250 gallon (946 L) tanks that allow for continuous mixing and pumping of bentonite at up 3,000 psi (207 bar).

P600 Power Pack

P600 Power Pack

480v and 415v

The electric P600 Power Pack powers the keyhole jacking frame and is operated with an in-shaft pendant. The P600 features a 600 gal hydraulic reservoir with three interchangeable high and low pressure pump and motor modules.

Belt & Screw Conveyors

Belt & Screw Conveyors

Belt 1015, 1215, 1615, 2415, Conveyor 120, 140, 160

Belt and Screw Conveyors transport soil from the face of the bore to the dirt bucket and are available in various widths and diameters.

524 & 1548 Haul Unit

1548 Haul Unit

1548 and 1548 Ext., 60-in. +

Haul Units are operator controlled, and provide a means to transport the dirt bucket along track in the tunnel to the launch shaft for soil disposal. Haul units are electrically driven with a removable battery pack and equipped with disc brakes.

524 & 1548 Haul Unit

524 Haul Unit

524 and 524 Ext., 36-in. +

Haul Units are operator controlled, and provide a means to transport the dirt bucket along track in the tunnel to the launch shaft for soil disposal. Haul units are electrically driven with a removable battery pack and equipped with disc brakes.

Haul Unit Dirt Buckets 1548

1548 Haul Unit Dirt Buckets

Matches TBM 600, 660, 720 and 780 Capacity

Dirt Buckets are sized to match the boring machine and haul unit to efficiently transport soil during pipe jacking. The 1548 Haul Unit Dirt Buckets capacity range from 2.5 - 5.4-cu yd. capacity.

Haul Unit Dirt Buckets 1548

524 Haul Unit Dirt Buckets

Matches TBM 360, 420, 480, 540 and 600 Capacity

Dirt Buckets are sized to match the boring machine and haul unit to efficiently transport soil during pipe jacking. The 524 Haul Unit Dirt Buckets capacity range from .8 - 2.8-cu yd. capacity.

Intermediate Jacking Stations IJSs

Intermediate Jacking Stations

48-168-in.

Intermediate Jacking Stations (IJSs) distribute thrust load to facilitate longer drives. Each station consists of five, 55-ton ram segments. IJSs are supplied with oil by a set of lines from the pump unit and operated from the jacking shaft. IJS configuration and total additional thrust depends on the pipe diameter, pipe joint, budget and length of the drive. IJSs are encased in a steel housing that is non-recoverable.