TEC delivers a multidisciplinary range of consultancy services for feasibility studies, design, tender document preparation, tender evaluation, design reviews, value engineering, cost analysis, detailed design, contract management and construction supervision for tunnel and underground works. And for all relevant disciplines such as civils, MEP, traffic engineering, road (alignment) etc.


  • Immersed tunnels
  • Bored tunnels (mechanized)
  • Cut and cover tunnels
  • Special techniques such as:
    • Pneumatic caissons
    • Aqueducts
    • Submerged floating tunnels
    • Ground improvement techniques

Road and Tunnel Safety

  • Safety concepts
  • Safety analysis
  • Operational procedures
  • QRA and scenario analysis

Electromechanical Installations

  • Ventilation
  • Pumps / drainage
  • Lighting
  • Power supply
  • Traffic control
  • Operation

Risk Assessments and Value Engineering

Digital Engineering

  • Parametric design tunnels
    • Tooling for concept design studies and optioneering
    • Tooling for repetitive geotechnical and structural engineering
    • 3D CAD / CAM applications for detailed designs
  • Fully integrated and advanced BIM and digital tunnel twins. 
  • Advanced FE modelling

Asset Management and Renovation

  • Operation and Maintenance strategies
  • Systems upgrade (focus availability of asset)
  • Condition assessment / Structural health analyses