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Auger Boring (AB)

With jacking forces from 44te to 260te and rotary torques in excess of 110,000ft.lbs (150,000Nm) Allen Watson own and operate the widest and most versatile range of Auger boring systems. With an array of cutting heads, lubricating and monitoring equipment we provide an ideal solution for the installation of steel casings and ducts where conventional open cut methods are not permitted, practical, environmentally or economically viable.

What is Auger Boring?

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Auger boring provides a safe method of installing pipes and cable ducts while supporting the ground during the bore. Continuous flights (contained within a steel pipe) are rotated and simultaneously pushed into the ground. As the bore progresses the ground is cut and the auger flights convey the material back into the work pit.

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Advantages include:

• Can operate from a shaft as small as 2.40 metre diameter.
• Dry method of installation - Does not generate slurry.
• No disruption to surface, buildings, road, river, rail or traffic.
• By boring underground the working area is confined to points of entry and exit only.
• Is unaffected by surface obstacles.
• Can be used to install pipes in changeable ground conditions.
• Is relatively quick and in many cases has lower overall costs.

Typical Applications

Pipes and ducts from 100mmØ up to 1200mmØ, in distances from 5 metres up to 140 metres have been successfully installed under Railways, Roads, Rivers, Airports, Buildings, Contaminated landfill sites and Sites of Special Scientific Interest.

Crossings can be for Water, Oil, Gas, Electric, Sewage, Chemicals, Communication Ducts and Outfalls