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linia92
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CLIENT: L9 Estacions JV: DRAGADOS - NEXO

LOCATION: Barcelona (Spain)

KEY ELEMENTS: Relevant redesigns have been performed for the L9 subway line in Barcelona, especially for the more complex elements, such as the stations

SERVICES: Detailed Design

BUDGET: US$ 175 million

PROJECT DURATION: Design 2004-2009 - Site Supervision 2009-2012

PEDELTA’S KEY PERSONNEL: Juan Sobrino, PhD, PEng, PE; Ángel Pérez, MSc

PROJECT DESCRIPTION

Line 9 is a part of the Barcelona subway network that is currently under construction. Upon its completion, it will be the longest automatic subway line in Europe. The total system will have a length of 47.8 km, of which 43.71 will be underground and 4.09 on viaducts. L9 will be the deepest line in the Barcelona network.

Many different redesigns have been performed to improve their constructability and structural design, mainly in the stations Gornal, Torrassa, Collblanc, Campus Sur and Zona Universitaria. All of them have a similar configuration: they are cylindrical with 18 m diameters in plan view and more than 40 m deep. Most of them include links with other existing subway stations.

 

DESIGN/CONSTRUCTION APPROACH

The stations were built by top-down construction method. Horizontal perimetral concrete rings were made at each stage. For the first time in Spain, shotcrete was the construction technique adopted to make these reinforced concrete rings.

Complex 3D analysis models were necessary to take into consideration loads and geometric asymmetries. Secondary elements, such as platforms, openings and connection passages under existing roads under service, among others, were also redesigned to minimize interferences with traffic, effects to existing facilities and buildings, and also to optimize structural elements.

+ FEATURES

CLIENT: L9 Estacions JV: DRAGADOS - NEXO

LOCATION: Barcelona (Spain)

KEY ELEMENTS: Relevant redesigns have been performed for the L9 subway line in Barcelona, especially for the more complex elements, such as the stations

SERVICES: Detailed Design

BUDGET: US$ 175 million

PROJECT DURATION: Design 2004-2009 - Site Supervision 2009-2012

PEDELTA’S KEY PERSONNEL: Juan Sobrino, PhD, PEng, PE; Ángel Pérez, MSc

+ DESCRIPTION

PROJECT DESCRIPTION

Line 9 is a part of the Barcelona subway network that is currently under construction. Upon its completion, it will be the longest automatic subway line in Europe. The total system will have a length of 47.8 km, of which 43.71 will be underground and 4.09 on viaducts. L9 will be the deepest line in the Barcelona network.

Many different redesigns have been performed to improve their constructability and structural design, mainly in the stations Gornal, Torrassa, Collblanc, Campus Sur and Zona Universitaria. All of them have a similar configuration: they are cylindrical with 18 m diameters in plan view and more than 40 m deep. Most of them include links with other existing subway stations.

 

DESIGN/CONSTRUCTION APPROACH

The stations were built by top-down construction method. Horizontal perimetral concrete rings were made at each stage. For the first time in Spain, shotcrete was the construction technique adopted to make these reinforced concrete rings.

Complex 3D analysis models were necessary to take into consideration loads and geometric asymmetries. Secondary elements, such as platforms, openings and connection passages under existing roads under service, among others, were also redesigned to minimize interferences with traffic, effects to existing facilities and buildings, and also to optimize structural elements.