CONSTRUCTION

Design conceived to reduce construction costs and deadlines.

Drillable tunnels with tunnel-boring machines (TBM) in, at least, a 50% of the length.

Central section in the double tube to allow the compositions crossings.

Transversal galleries that allow:

• Up to 12 simultaneous drilling fronts.
• To adapt construction systems to land types.
• To access and evacuation in operation.
• An extension of the second tube without interfering with the service.
• Risks, costs, and deadlines control.

Ease of access to construction areas.

Use of materials: concretes manufacturing, esplanades creation for the stations, etc. Minimum waste disposal in dumps.

Suitable cross section for single road and designed for legal gauges in Colombia.

Space for other service networks: communications, electricity, gas, etc.