Light Metro Pinar de Chamartín-Sanchinarro-Las Tablas. Section II
Here you will find information, graphic documentation, photographs, etc. of this work.
Commissioning: May 24, 2007
The route runs between the M-30 and the M-40. It begins in Sanchinarro on c/Príncipe Carlos and ends, once it has crossed the A-1 road below, in Las Tablas, at the intersection of Palas de Rey and Avda. del Camino de Santiago, next to Las Tables for the expansion of Line 10 of the Madrid Metro, known as Metronorte.
Description of the works
The total length of the section is 2.864 m, of which 1.940 correspond to a tunnel, executed using the procedure Cut-and cover, either with continuous screens or screen-walls (station area), or with discontinuous screens of piles (the rest of the tunnel, in the area of the junction with the A-1 motorway, secant piles were built).
The route begins on the surface at pk 2,512 on c/Príncipe Carlos, being at pk 2,666 where the tunnel zone begins, maintaining a straight alignment until reaching c/María Tudor at pk 3,430. The Blasco Ibáñez station is located in this section (pk 3,027 to pk 3,173).
Later, it turns through a curve to the right with a radius of 80 m, crossing an existing park, to continue with a straight alignment where the María Tudor station is located (pk 3,579 to pk 3,743).
Next, the route turns in the direction of the A-1 motorway, by means of a curve to the left with a radius of 60 m, to continue with a straight alignment until the end of the Line (kp 5,401), coming to the surface -once crossing the A-1 highway- at pk 4,606. In this last section, already on the surface, and parallel to c/Palas de Rey, there is the only level crossing with the road traffic of c/Valcarlos, located between pk 4,821 and pk 4,842, the Palas de Rey station (pk 4,871 to pk 4,916) and the LasTablas station (pk 5,306 to pk 5,351), which is located at the height of the Las Tablas station of the METRONORTE line.
As far as slopes are concerned, the greatest ramp is reached at pk 4,346 with a value of 6%, the greatest slope is reached at pk 3,388 with a value of 6%.
Technical data
| Total length of the section | 2,864 Km |
| Number of stations |
4 |
| concrete volume | 80.000m3 |
| excavation volume | 236.400m3 |
| Maple | 8.300.000 Kg |
| Screens |
28.200 m2 |
| Pilotes | 2.014m |
| rail length | 11.508m |
A ventilation shaft has also been built between the Blasco Ibáñez and María Tudor stations (pk 3,386), a ventilation+pumping shaft under c/Ana de Austria (pk 4,111) and two pumping shafts, the first in c /Príncipe Carlos at the beginning of the tunnel zone (pk 2,675), and the last one after María Tudor station (pk 3,826).
In section 2 there is an emergency exit at the Blasco Ibáñez station.
Simultaneously with the execution of the works, instrumentation and auscultation monitoring was carried out to control the movements of the structures and the behavior of the adjoining land, to ensure its adaptation to the assumptions and calculation models.
The tunnel
It is of rectangular section, and has been executed by means of the procedure of cut-and-cover, Executing continuous screens, discontinuous piles and discontinuous secant piles one meter thick from the surface and the roof slab in the shortest possible time, to then proceed to empty the interior enclosure, using an auxiliary ramp.
It is worth highlighting the passage under the A-1 motorway, which had to be carried out in three phases to have as little impact as possible on traffic on such an important road.
Surface-tunnel transition
In this section we find two transitions between surface and tunnel.
The first, located in the neighborhood of Sanchinarro, runs from km 2,563 to km 2,666. Up to pk 2,606, a "U" section is made by means of retaining walls and the inverted vault.
From this kp 2,606 to 2,666 the walls are made by means of a discontinuous screen of piles lined with blue vitrified brick, continuing the open-air section.
The second, located in the neighborhood of Las Tablas, runs from pk 4,606 to pk 4,750, making a "U" section through retaining walls and the vault.
Area
There are two areas through which the Line passes on the surface, which run through the Sanchinarro neighborhood and serve as a link with section I and the Las Tablas neighborhood.
The execution method has been to carry out, by using a backhoe, a 1,4 m deep and 5,8 m wide recess to be able to place the foundation package necessary to support the loads transmitted by the Light Rail. This base is formed by a type E-2 esplanade (for example, artificial gravel) 0,5 m thick.
The track superstructure is located on this base, made up of a 20 cm thick layer of HM-15 cleaning concrete on which an elastomeric blanket would be placed if it was less than 15 m from the building façade to attenuate the vibrations. On this layer, and if there is an elastic blanket on the blanket, another 20 cm thick layer of HM-25 is placed. An electro-welded mesh is placed on the latter as reinforcement of the last HA-25 concrete slab, 44 cm thick, in which the CDM track system is embedded and on which the finish is carried out, either with cobblestone in areas of steel (gray in areas for the exclusive use of the Light Rail or pink in pedestrian crossings) or granite at level crossings.
A 400 mm diameter pipe runs through the rail for longitudinal drainage that collects the water from the transverse drainage located every 50 m along the trace.
Stations
Blasco Ibanez Station
It is located on c/ Príncipe Carlos (pk 3,027 to pk 3,173). It is an underground and through station, with a central platform. It has a single pedestrian passenger access, with the emergency exit station at the opposite end. The main body of the station has been arranged with a length of 146 m and a width between screens of 16,7 m.
The station is made up of a roof slab, an intermediate floor where the technical rooms and electrical substation are located, and a vault where the platform is located.
The station has a variable excavation bottom with a height of 10 m in the central part of the station. The roof slab is a 1,20 m thick reinforced concrete slab with lightening, while both the platform slab and the intermediate level slab are made of joists and vaults with a concrete compression layer. The slab of the electrical substation is made of reinforced concrete.
The station has been run using the system cut-and-cosee, with perimeter walls made by continuous screens, or screen-walls, 1 m thick, lined with vitrified sheet metal panels and italfilm.
The length of the platform is 58 m with a width of 10,5 m.
The station has pedestrian passenger access and an elevator. Its exterior shape is specified with a rectangular prism with a metal structure and laminated glass enclosure, similar to those located on the Metrosur Line.
This station will have an emergency exit at the opposite end of the platform from the pedestrian passenger access.
Mary Tudor Station
It is located in the park that is surrounded by María Tudor street (pk 3,579 to 3,743). It is an underground and through station, with a central platform. This station has two entrances to provide better service and due to the proximity of a large shopping center that will be a great attraction for travellers.
Being located in a park without major space constraints, the main body of the station has been arranged with a length of 164 m and a width between screens of 16,7 m.
The vault is materialized by a reinforced concrete slab 0,8 m deep formed by three straight sections in the shape of an arch.
It has been executed by the system cut-and-cover, with perimeter walls made by continuous screens, or screen-walls, 1 m thick, lined with vitrified sheet metal panels and italfilm.
The length of the platform is 67 m with a width of 10,5 m.
The station has two pedestrian passenger accesses and an elevator. Its exterior shape is specified with a rectangular prism with a metal structure and a laminated glass enclosure similar to those located on the Metrosur Line. These accesses have a line of windbreak doors after the roller gate. In addition to having a lift from the street level to the platform, it has four escalators, two in each of the two station access bandstands, and two fixed ones at each end of the platform. The difference in level between the accesses and the platform is 8,36 m.
Within this station, it is worth mentioning the landscape restoration that was carried out on the surface, with the environmental reintegration of the area affected by the works of the María Tudor park.
Palas del Rey Stations y The tables
The typology of the two surface stations of section II, which are in the Las Tablas PAU, is of platforms on both sides of the trace. Both stops have a 45 m long platform with two 5 m long access ramps, one on each side of the platform.
The bus stop canopy consists of two 5 m long metal profile modules. In one of them are located the cabinets with the control and communications equipment, energy, tickets, signals and airline and electricity. The another is dedicated to the traveler, with a series of seats.
En As far as materials are concerned, both the platform flooring and the edge of the platform are made of granite.
Pozos
Along section II of Line ML 1, a ventilation shaft has been built between the Blasco Ibáñez and María Tudor stations (pk 3,386), a ventilation+pumping shaft under c/Ana de Austria (pk 4,111) and two pumping wells, the first in c/Príncipe Carlos at the beginning of the tunnel area (pk 2,675), the last being located past the María Tudor station (pk 3,826). For the execution of these wells, discontinuous screens of shotcrete secant piles were made in the pumping well at pk 2,675, discontinuous screen of gunned piles in the ventilation well (pk 3,386) and continuous screens in the ventilation+pumping well (pk 4,111). ) and in the pumping well at pk 3,826.
track superstructure
The same criteria have been followed as for the previous section
Brochures
THE LIGHT RAIL ARRIVES IN SANCHINARRO AND LAS TABLAS
The opening of the Light Metro line to Sanchinarro and Las Tablas involved the construction of nine stations: Pinar de Chamartín, Fuente de la Mora, Virgen del Cortijo, Antonio Saura, Álvarez de Villamil, Blasco Ibáñez, María Tudor, Palas del Rey and The tables.
LIGHT METRO. PINE FOREST CHAMARTÍN-SANCHINARRO-LAS TABLAS
This line connects these northern neighborhoods of Madrid; on the one hand, with the capital from Pinar de Chamartín and, on the other, with the capital from Pinar de Chamartín and, on the other, with the municipalities of Alcobendas and San Sebastián de los Reyes through Metronorte.
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