Guided Auger Boring Aids River Quality Improvement Work

Specialist trenchless contractor, Trenchless Solutions Ltd (TSL) was required to install two grade-critical guided auger bore installations as a specialist subcontractor for client United Utilities (UU) as part of the Blackburn UID works, Audley Range and Queens Park Road project. The works and the engineering planning were carried out by UU with J.K Guest Group being appointed as the main contractor for the project. Investigations of the ground conditions prior to planning of the project showed that, at the level of the pipe installation, conditions consisted of soft to stiff clay which was ideal for the guided auger boring technique chosen for works. As well as being well-suited to the prevailing ground conditions the method also meant that the gravity sewer being installed could be accurately aligned on both line and grade, the latter being critical to the success of the installations.

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