TUNNELS

EMAY has extensive knowledge and experience in planning, design and project implementation services of tunnels. EMAY provides services in the following sub-fields of activity within the context of tunnels :

• Highway Tunnels
• Rail System Tunnels (including Station Buildings)
• Urban Public Transportation System Tunnels
• Water and Waste Water Tunnels

EMAY works in all kinds of soil conditions from the hard rock to weak (soft) soil conditions on different types of tunnels listed below :

• Cut and Cover Tunnels
• Cover-Cut Tunnels
• Drilling-Blasting Tunnels (NATM or TBM)
• Utility Tunnels
• Underground Structures
• Portal and Entrance Structures
• Shaft Structures (Temporary / Permanent Access, Emergency, Ventilation)

Our comprehensive services cover a wide spectrum ranging from simple survey and assessments to complex multi-disciplinary studies. These include the following :

• Feasibility Studies
• Geodetic Surveys
• Hydraulic and Hydro-geological Surveys
• Soil Surveys (Geological and Geotechnical)
• Environmental Impact Assessment
• Transportation / Traffic Planning and Design
• Architectural and Engineering Design
  • Alignment Optimization and Design
  • Geological Engineering
  • Geotechnical and Rock Mechanics Engineering
  • Structural and Seismic Design (Excavation-Support and Inner Lining)
  • Settlement Analysis and Damage Assessment of Buildings Above Tunnel
  • Retrofit / Rehabilitation

  • Electrical Systems Design (Power Supply; Lighting; Control System; Communication - Telephone, Radio, Announce; Signaling and Traffic Signage)

  • Mechanical Systems Design (Ventilation; Water Supply; Fire Fighting)
• Preparation of Technical Specifications and Tender Documents
• Due Diligence, Inspection, Analysis and Evaluation
• Financial and Economical Services
• Design and Interface Management
• Project Management
• Construction and Site Supervision and Management
• Testing, Commissioning, Operation and Maintenance, Training Management and Support