UK

Edinburgh Trams

soil stabilisation measures were required to carry the new twin line tramway

ByrneLooby carried out the ground stabilisation design for a 250m section of the tram route adjacent to an existing Network Rail Embankment as part of the new £600m Edinburgh Trams scheme.

The Edinburgh Tram system is a major scheme to provide a modern tram system offering an environmentally friendly, fast and high capacity service.  Under a 7m high rail embankment along the route, soil stabilisation measures were required to carry the new twin line tramway.

Our brief was to improve the incompetent ground whilst minimising post-construction settlements which could adversely affect the mainline rail embankment. We utilised ground improvement techniques involving the installation of a regular array of deep soil mixed columns.

The design arrangement provided a cost effective solution and acted as a soft ‘pile’ load transfer mechanism for the geogrid/stone earth retained embankment.

Scope of Project

  • Design of ground improvement/remediation measures for a new 250m stretch of tramway adjacent to an existing Network Rail mainline embankment.
  • The soil stabilisation was required for a new embankment comprising a reinforced earth retaining wall.
  • Utilised ground improvement techniques involved the installation of a regular array of deep soil mixed columns (controlled modulus columns).
  • Implemented ground improvement measures had to be sensitive to the live Network Rail Embankment.

Project Photos