The Anchor Screw foundation system replaced the need to use cast in-situ posts to support elevated cable route,
although the system can be used to support a variety of different super-structures. The steel screws are driven
into the ground from the surface, following a ground clearance check which is completed using 3D Ground Penetrating
Radar. The hemi-spherically domed heads then allow for up to 7 degrees of vertical alignment correction,
in the case the screw has been knocked off alignment during driving.
As the system had not been used on Network Rail infrastructure previously, it was crucial to work with our Client,
Network Rail, to ensure full buy-in throughout design and construction. The subsequent approval we received
clearly shows both the collaborative relationship between client and contractor, and the obvious value this system
could provide.
Authorisation for the use of the Anchor Screw system was obtained from Network Rail. This is the first time the
system has been installed on Network Rail infrastructure. Approval was gained and the system was installed on
the Hither Green Signalling Renewals project resulting in multiple benefits for the project and our customer.