A station for through traffic.
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Malmö Central station as it will look with the glassed arrival hall. |
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Malmö Central station with the new glass hall. The subterranean station will have four tracks with two interjacent platforms.
By Metro Arkitekter |
When Citytunneln is finished, 85 per cent of all trains that arrive at Malmö will pass through Malmö C.
At present trains need to drive into Malmö C in order to continue southwards. Citytunneln will make travel simpler, faster and more comfortable.
With the advent of Citytunneln Malmö C will be transformed into a efficient station for through traffic. Students at Malmö University as well as people who live locally or work at Västra Hamnen and the vicinity will have a modern station with several exits.
New glass hall
Malmö C will change in two important aspects. Parallel to the existing central hall a glass hall with the new station section will be constructed so that it connects with Centralplan. The glass hall will be a central axis from which travellers can reach the existing tracks and the two new
underground platforms. A new car park building will be constructed on the north side opposite the area around Slagthuset. Taxis will also be available here.
The glass hall’s south exit towards Centralplan and the city will guide travellers out towards the buses in the same way as today. The glass hall is constructed by Jernhusen AB in collaboration with the Citytunnel project.
Underground station section
The other change at Malmö C is the new underground station section – Malmö Central Nedre (lower). The station section has four tracks with two intermediate platforms.
The platforms are constructed 10 metres below ground level and will be 340 metres long and 11 metres wide. The new station section will have four exits. The main exit is constructed in the new glass hall. One exit is located to the left at Hjälmarekajen where the conveyor under Suellskanalen links the underground station section to street level. A further two exits are built eastwards. One in the new car park building and one between the car park building and the glass hall.
This is the way Malmö C Nedre is built
The new station section is built in an open shaft. This means that it is excavated down to the level where the platforms will be located. The work that is both demanding and timeconsuming is done in stages. Not least so that traffic disruption in the area shall be minimised. The different construction methods that are used depend primarily on which geological and geohydrological conditions apply within the area. Large proportions of the work take place below the water level. This means that the water table must be lowered during the construction period.
Canal closed during the construction period
Since the tunnel is built below the water level, Suellskanalen will be closed off during the construction period. While the canal is closed, the water flow in Malmö’s canals will be ensured with the help of pumping through Turbinkanalen.
Cofferdams to retain the water
Cofferdams will be built next to Inre hamnen and Suellskanalen to keep the water out. The damming will be filled with gravel to achieve stability. Once the work is complete the damming will be removed and the water released again.Excavation of an open construction
In addition to the water level at Malmö C there is also Suellskanalen. This controls the procedure for excavating the open construction shaft at the different parts within the working area. The choice of method also depends on how the work might affect different sensitive buildings in the area.
The first phase of the work covers damming and support. Damming is achieved by using cofferdams that retain Suellskanalen’s and Inre hamnen’s water. This is followed by building support walls with diaphragm walls and sheet pile walls around the entire working area.
Excavation within the support walls goes down to the level where the station’s base and platforms will be constructed. Once the work is complete, the damming at the canal in Inre hamnen will be removed and the water released again. Diaphragm walls and sheet pile walls will however be left in place but will be cut at approximately 1.5 metres below ground level. From the upper level of the station it will be approximately 1.6 metres up to the water level.
Disruption of traffic
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Malmö C area |
The tunnel is constructed in stages, but will nevertheless cause major disruption to traffic.
Citadellsvägen is closed to road traffic between Nordenskiöldsgatan and Malmö C. North-south transports routes wil be kept open throughout the construction period using various temporary solutions.
The City of Malmö has built an drawbridge across the Inner Harbour. The bridge will play a significant role for the efficiency of the traffic system during the construction of the Citytunnel.