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PIPE JACKING & TUNNELING

TUNNEL BORING SYSTEM

Tunnel Boring System

Tunnel Boring System

Pump Unit, Yoke, Skid

The Tunnel Boring System is a turnkey solution for 48-96-in. OD pipe jacking and is comprised of a pump unit, positioned behind a thrust yoke that matches the diameter of the TBM, and mounted on a skid base. Pipe jacking takes place when the operator on the pump unit’s platform engages controls to extend jacking cylinders to advance the yoke, TBM and pipe along the skid base. When coupled with a Series II TBM, contractors can expect improved precise control and enhanced performance in varying and challenging geology.

5200 Pump Unit

5200 Pump Unit

(2) 100 HP (1) 60 HP Electric Motor

The 5200 Series Pump Unit features independent hydraulic jacking and TBM supply functions with pressure compensated capabilities. The 5200 Pump Unit maximum flow is 120 gpm. Combinations of 30, 60 and 90 gpm are selected to match boring head and auxiliary requirements. The maximum pressure is 3,000/5,000 psi (5,000 psi requires a Series II TBM and appropriate supply lines).

Thrust Yoke

Thrust Yoke

Yoke 360, 420, 480, 540, 540 Ext., 600, 600 Ext., 660, 720, 720 Ext., 780

Thrust Yokes match the pipe diameter and provide a 360-degree surface to minimize point pressure on the pipe and transfer thrust from the pump unit to the pipe.

Skids

Skid Bases

2.5, 7.5, 15, 22.5-ft.

Skid Bases allow for various shaft configurations and are available in standard lengths of 2.5 - 22.5-ft. to accommodate common pipe.