TBM Jacking Frames
The Pipe Jacking Keyhole Jacking Frame includes horizontally mounted hydraulic cylinders with keyed notches that lock into place and ensure smooth and continuous TBM and pipe advancement. The frame’s hydraulic functions include extend, retract, high flow return, and auxiliary control.
The Pipe Jacking Keyhole Jacking Frame is positioned in front of a reaction wall on the design axis. A stationary set of cables is routed from the power pack to the jacking frame in the launch shaft. The Pipe Jacking Keyhole Jacking Frame exerts continuous and uniform hydraulic jacking force onto a thrust ring, which moves the TBM and pipe along the alignment path. The jacking frame force reacts against the concrete thrust block and the ground outside of the shaft.
Akkerman standard Pipe Jacking Keyhole Jacking Frame sizes selected by size to accommodate the TBM, pipe diameter, dirt bucket, and shaft lengths can be customized to suit project needs.
FEATURES:
- Pipe Jacking Keyhole Jacking Frame family complements all Akkerman TBM models.
- Keyed notches on the cylinders lock into place for smooth, continuous advancement.
- Exerts continuous and uniform hydraulic jacking force onto a thrust ring.
- Guidance system notch in the thrust plate allows pipe laser projection down the tunnel centerline.
- Some models can be configured for additional thrust capacity with a thrust cylinder kit.
SPECIFICATIONS
Print This Page| Model | Thrust | Pipe OD Max | Weight |
|---|---|---|---|
| MT460K-PJ | 400 ton | 62-in. | 35,000 lbs. |
| MT860K-PJ | 800 ton | 62-in. | 45,000 lbs. |
| MT875K-PJ | 800 ton | 77-in. | 56,000 lbs. |
| MT890K-PJ | 800 ton | 93-in. | 60,000 lbs. |
| MT8102K-PJ | 1200 ton | 104-in. | 74,000 lbs. |
| MT8104K-PJ | 1200 ton | 106-in. | 75,000 lbs. |
| MT8114K-PJ | 1200 ton | 116-in. | 85,000 lbs. |
Weights dependent on configuration of final unit.
Testimonials
Lithos Engineering is focused on providing tunnel design and construction management for underground projects across the United States and has worked with many different tunnel contractors on projects of varying sizes and complexity. I am always happy to see Akkerman equipment on our project sites and I know we can rely on Akkerman products for a high level of performance and reliability.