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Methods

Auger Boring (AB)

Auger boring is a non-steered method used to install pipes from 150mmØ to 1,200mmØ. During installation the pipe fully supports the ground while the cut spoil is conveyed by continuous flight auger back to the work pit. Ideal for boring in a wide range of materials and where minimal settlement is critical.

Directional Drilling (HDD)

Horizontal directional drilling is used for installing pipes from 60mmØ to 1,200mmØ. Typically this is a surfaced launched technique steered both horizontally and vertically and can also be curved to bypass obstacles. As the bore progresses the ground is replaced and supported with drilling mud. Ideal for bores 25m up to 2000m in a wide range of materials.

Guided Auger Boring (GAB)

Guided auger boring is a steered method used to install gravity pipes from 150mmØ to 900mmØ. Prior to pipe installation, a pilot bore is driven to line/level and all aspects of this method fully support the ground during installation. Ideal for boring in a wide range of materials and where minimal settlement is critical.

Pipe Ramming (PR)

Pipe ramming is a non-steered method using pneumatic equipment for driving steel pipes from 150mmØ to 1,600mmØ without the need of a thrust-wall either from a pit or above ground level. The spoil inside the pipe remains insitu until completion of the bore. Ideal for boring in loose materials, under rivers and through embankments or where minimal settlement is critical.

Impact Moling (IPM)

Impact moling is a non-steered method using pneumatic equipment for the installation of PE pipe or PVC duct 20mmØ to 100mmØ without the need of a thrust-wall. The system relies upon displacing the spoil in its path to form a mini tunnel. Ideal for boring in soft clays/silts (compressible materials) under embankments, roads, railways for lengths up to 20 metres.

Rock Boring (RB)

Rock boring comes in several variants, wet or dry, methods range from pneumatic to rotary, bores can be steered, non-steered, straight or curved subject to specific requirement, for pressure pipelines or gravity drains from 150mmØ up to 900mmØ. Bore distances vary subject to particular method from as little as 10 metres up to 1,000 metres