Standard Intermediate Jacking Stations
Intermediate Jacking Stations (IJSs) as inserted in the tunnel string at appropriate intervals to enhance and distribute thrust loads and facilitate longer drives. IJSs are designed to match a project’s exact pipe outside diameter. IJSs are custom built to match common RCP, steel casing, or CCFRPM pipe joints.
An IJS is recommended when the thrust pressure reaches one‐third of the pump unit’s maximum pressure capacity or half of the IJS thrust capacity. The IJS assembly comprises a non‐recoverable steel housing with multiple ram segments that each exerts additional thrust and is positioned on the steel housing’s interior ring.
IJS cylinders are controlled by the pump unit operator with a line holder cable, connected to hydraulic hoses and spool valves in the tunnel. IJS function can also be controlled through the ABIS system Monitor for automated injection.
FEATURES:
- Used to extend drive length by distributing thrust load for longer drives.
- Sealed to prevent ground intrusion into the tunnel.
- Non‑recoverable steel housing with multiple ram segments, each exerting additional hydraulic pressure.
- Customized to match the outside diameter of the project pipe.
SPECIFICATIONS
Print This Page| Length of Stroke Cylinders | Qty. of Thrust Rams | Capacity Per Ram @ 8,000 psi |
|---|---|---|
| 7‐in. | 5‐18 Segments | 55 tons |
Testimonials
With its purchase of an Akkerman Model 5000 pump unit, skid base, and WM72C wheel machine in 2006, Northeast Remsco began its partnership with Akkerman that has resulted in its successful completion of many trenchless projects over the ensuing years using conventional wheeled machines as well as a variety of pilot tube equipment. I call it a partnership because the Akkerman team provides advice on the best choice of trenchless equipment for a project as well as how best to overcome jobsite obstacles when they arise, as they inevitably do. From their sales staff to their factory support team, Akkerman employees work with us to get the most we can from the equipment and to get the jobs done safely. They are a pleasure to work with!