Underground Rail Surveys, Liverpool
- Structural Surveys
Sanderson Watts Associates (SWA) were commissioned by Lend Lease on a framework with Network Rail to undertake a condition survey at Lime Street, James Street, and Liverpool Central Underground Railway Stations.
The condition survey comprised of an inspection and assessment of;
• Tunnel wall linings
• Cladding support system
• Platform structure and sub-structure
• Surface and ground water drainage systems
• Underground electrical and ventilation services
The survey was carried out during several consecutive night possessions by a team of Chartered Civil & Structural Engineers qualified in Personal Track Safety and Emergency Procedures for Mersey Rail (Pink Ticket Training).
The purpose of each survey was to determine the existing condition and sustainability of the following elements;
• Structures and services
• Emergency escape routing
• Fire protection measures
• Drainage network and connectivity
• Underground electrical/ventilation services and connectivity
Highlighting, in particular, the arrangements and the current condition of existing concrete, brickwork and steelwork along with any limitations the existing steel fixings may have in providing support to future cladding systems.
SWA researched, collated, assessed and provided site notes, visuals (inc. 3D high quality rendered images)/photographs, non-destructive testing results and archive drawings, creating substantiating reports with conclusions and cost-effective recommendations.
SWA’s reports provide a valuable resource to substantiate decision making by stakeholders for future refurbishment and maintenance of the stations.