Our Projects

Guided Auger Bore – Macclesfield

Project Overview

Trenchless Solutions Limited (TSL) was engaged by Westshield Limited to carry out a trenchless installation at a Morris Homes residential development site on London Road, Lyme Green, Macclesfield. The project required the precise installation of a new section of gravity sewer beneath the site, avoiding significant surface disruption and minimising impact on the surrounding residential environment. A trenchless approach using the PERFORATOR GmbH Guided Auger Boring system was selected to ensure accurate alignment and reduce risk to existing infrastructure.

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Description of Works

Working on behalf of Westshield Limited, Trenchless Solutions Limited completed the installation of DN150 Naylor Denlok vitrified clay jacking pipe using a 3-pass guided auger boring technique. The works were carried out from a client-constructed launch shaft, with a reception pit at the opposite end of the bore. Precise engineering and trenchless expertise ensured a successful installation, achieving seamless connections to the existing sewer infrastructure whilst minimising surface disruption and programme duration.

 

 

Proposed open cut construction	As built trenchless construction
Restricted access: Residential development site with traffic and access constraints Close proximity to existing utilities and new build infrastructure Sensitive ground conditions requiring careful management	Restricted access: No disruption to road surface or surrounding development Minimal working footprint within controlled shaft areas
Health & safety: Temporary deep trenches across live residential site Extensive temporary works and shoring required	Health & safety: No open excavation across the site Confined works within controlled shaft areas with strict confined space procedures
Cost savings: High reinstatement costs across new build site Extended dewatering and over-pumping Increased duration of works impacting programme	Cost savings: Minimal reinstatement required Reduced dewatering and over-pumping Shorter construction programme
Environmental: Higher carbon emissions from prolonged plant use Noise, dust and vibration affecting local residents and site operatives	Environmental: Reduced CO₂ emissions Lower noise and surface disruption throughout works

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