16/10/2026
Specialist Piling works within a 35 metre-deep shaft
Working from the base of a shaft 35 metres below ground level, our Specialist Piling team have completed a challenging piling package in Gravesend.
The shaft forms part of National Grid’s programme to replace ageing tunnel infrastructure and will provide access for a tunnel boring machine during construction of a new tunnel between Tilbury and Gravesend.
Working on behalf of the Ferrovial-BEMO JV the team installed 56 No. 150mm diameter down-the-hole (DTH) piles, drilling a further 12.7 metres from the base of the shaft.
Working within a shaft of this depth required careful planning and specialist equipment. A Klemm 702 rig was selected to meet the site’s lifting constraints and available crane capacity.
The works also involved drilling through a 3-metre reinforced concrete slab and concrete blinding.
Originally programmed for three weeks, the piling package was completed in just two weeks, supporting the wider project programme.
The project demonstrates our ability to deliver specialist piling solutions in restricted-access environments, combining experienced teams, specialist equipment and technical expertise to meet the demands of complex infrastructure projects.
For more information about our specialist and restricted-access piling capabilities, contact [email protected].