Construction project and geotechnical campaign for the extension of the FGC Llobregat–Anoia line in Barcelona

The extension means that the station will cease to be the end of the line and will become a through station. This change in its functionality will entail changes in the number of tracks with passenger access. The current tracks 1 and 2 will cease to provide service to users (although they will remain as train parking tracks in off-peak periods) while the current tracks 3 and 4 will be the new main tracks of the line, named track 1 and 2 respectively.

Therefore, this is not a new station but a reconfiguration of the existing station. The proposed adaptation retains the platform configuration (central) of tracks 3 and 4 with a main exit at the north-western end of the platform (maintaining the existing emergency exit at the south-eastern end of the platform).

The extension of the line invalidates the existing connection between platforms made at elevation +15.18 and it is therefore necessary to establish a new platform exit route following the alignment of the track extension until it reaches the existing vestibule. The planned actions are limited to both the area of the vestibule and the existing platform end covering structure.

With the configuration of the new route of the L8 infrastructure, the connecting corridor between L1 and L3 is affected. For this reason, a section of this corridor is to be rebuilt.

To resolve this passageway, two different areas of action are proposed; the L1 connection area (under the road tunnel) and the modification of the existing gallery.

In the L1 connection area, an open-air shaft is built to open up the current connection shaft and, as the connection is lower than the current one, to bridge the difference in level by means of a fixed ladder, a mechanical ladder and a lift.

Leaving this area, the correspondence has continuity with the existing gallery.

In order to achieve the level that allows passing under the new tunnels of Line 8, it is planned to maintain the return of the gallery.

The agreement will be made from the point under the new tunnels to where the accessibility project foresees the lift that goes from the L3 lobby to the correspondence gallery.

The new Hospital Clínic station is located on Carrer de l'Urgell between Carrer Rosselló and Carrer Córcega. This station connects with the current Hospital Clínic station on TMB line 5 via the vestibule under the intersection of Carrer Conde d'Urgell and Carrer Rosselló.

It consists of a single vestibule with two entrances with stairs and a PRM lift from the street to the vestibule. One of the accesses is a fixed staircase 2.3m wide and the other is made up of escalators going up and down.

The side platforms are defined for the single-tube construction solution. These platforms are 4.75 m wide. The depth of the station is approximately 50m.

This station is located on Carrer del Compte de Urgell between Carrer de Buenos Aires and Plaça de Francesc Macià. The accesses to the station are as close as possible to Plaça Francesc Macià to facilitate interchange with the Tramway.

The width of the pavements on Carrer Urgell is generous, but to allow pedestrians to pass through comfortably, two accesses are planned:

• One access with escalators (one going up and one going down) on the Besòs side,
• Another access with fixed stairs, on the Llobregat side.

The PRM lift at lobby street level is located in Compte Urgell street on the Llobregat side a few metres below the access with fixed stairs, in order to be the closest access to the Tram.

The side platforms are defined for the single-tube construction solution. These platforms are 4.75 m wide. The depth of the station is approximately 50m.

To guarantee the safety of the tunnel section between Plaza España station and Hospital Clínic, there is a second emergency shaft at C/Consejo de Ciento with C/del Compte Urgell.

The shaft is about 40m deep and has 5 levels connected with a scale of 1.30m wide. The structure includes a provision for the possible installation of an emergency lift.

It is a zenithal shaft of approx. 18.00m free, and allows the evacuation of the two roads independently, without having to cross any road.

To guarantee the safety of the tunnel section between Francesc Macià and Gracia stations, there is an emergency shaft at C/Muntaner between C/ de Laforja and C/Marià Cubí.

The shaft is about 60m deep and consists of 9 connected levels with a scale of 1.40m wide. The structure includes the provision for the possible installation of an emergency lift.

It is a zenithal shaft of approx. 9m free which is connected to the tunnel by a connecting gallery through which the evacuation of the two tracks takes place, therefore the tracks have to be crossed.

In terms of architecture and geometry, the distribution of the rooms on the different levels is defined.

In terms of installations, this project includes the definition of the deep meshes of the earth network, given that they have to be built parallel to the structures. However, it does not include the definition of the specific grounding shafts for the electrical systems, which will be the subject of the installations project.