IRAN

Main Eastern and Western Tubes of Alborz Tunnels

Owner/Client:

Tehran-Shomal Freeway Co.

Cost of works:

€ 1,743,910.67

Period of Activity:

2015 - 2016

The Alborz Tunnel is part of the Tehran-Shomal Freeway, which shall provide a fast, safe, and cost effective connection between Tehran and Chalous, city on the south shore of the Caspian Sea.

— Project Description:

The tunnels are located at the highest point of the freeway at about 2400m above sea level and between km 47.8 and 54.1of the freeway chainage with a length of about 6.4Km. The Alborz Tunnel as per contract document would have been realized in different phases as follows: • Phase 0: Service Tunnel → excavation already completed; • Phase 1: Alborz Main Tunnel, northbound → preparation work started; • Phase 2: Alborz Main Tunnel, southbound → future construction in a not defined time. Both tunnels has been considered with unidirectional operation mode.

— Description of Services:

Detailed design of the tunnels. Based on the traffic load data provided by TSFC, the design shall comply with the relevant standards and provide a safe design of the tunnels as well as the related structures and equipment.
In particular:
  1. Work planning
  2. Collect and review the documents and provide the program of data completing
  3. Complementary review: Engineering geological, geotechnical and seismic
  4. Design: Geotechnical design, Galleries and tunnel design, Instrumentation system design, Tunnel alignment design, Design of the connecting route to the Alborz tunnel, Design of safety system of tunnel, Design of lighting system of tunnel, Tunnel ventilation system design, Control system design and electrification of the tunnel, Avalanche protection Design, Provide technical documents, Prepare operation and maintenance instructions, Provide the design reports and drawings.

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