Trenchless Technologies: Shaft Sinking OnSite offer a comprehensive shaft sinking service, ranging from standard sheet piled shafts to specialist underwater concrete construction. Our vast experience in this field enables us to provide a comprehensive and complete shaft sinking service, coupled with a high degree of customer interaction and competitive pricing arrangements. Based in Nottingham, OnSite Trenchless undertakes pipe repair and installation services throughout the UK, for a wide range of clients. Timber Frame Shaft Ideal for restricted areas such as gardens, basements or pedestrianised areas. Bolted Ring Shaft Can be installed by manual or machine excavation and used where access is restricted due to their segmental construction. Diameters range from 2 metres to 25 metres. Bolted ring shafts can be converted to manholes. Caisson Shaft A one pass liner usually installed with machine excavation/hand trimming. Diameters range from 1.5 metres to 4 metres. Caissons can be converted to manholes. Sheet Piled Shaft Usually for temporary access during construction. The shafts are mechanically excavated, with the sheet piles being driven in as excavation progresses. Sizes range from 1.5 metres sq. to approx 5 metres sq Underwater Construction For installing shafts using divers in areas of high water table. Caisson shafts are usually the preferred method Share this page: Enquire Now Related Capabilities Directional Drilling Pipe Jacking Sliplining Auger Boring GRP Segmental Lining Pipe Bursting Timber Headings Back to Top Newsletter Sign Up Contact Us +44 (0)1905 340054 Send an enquiry Our locations Company Capabilities About Compliance OnSite Central Ltd: Registered in England No.2712788. Registered Office: South Staffordshire PLC, Green Lane, Walsall, WS2 7PD © OnSite 2021. All rights reserved | Website design by Purpose Media