October 2017 Stockholm´s new Metro – our contracts 1 Photo: Henrik Trygg/mediabank.visitstockholm.com Henrik Photo: Contents 3 Build Stockholm’s new Metro with us! 4 Our contracts 6 This is how we build tunnels 8 Arenastaden 12 Barkarby 14 Depot 18 Nacka 20 Södermalm 22 Söderort 2 Photo: Henrik Trygg/mediabank.visitstockholm.com Build Stockholm’s new Metro with us! Stockholm’s Metro network is to have almost twenty kilometres of new track added to it. It is also to get eleven new stations. All of this is so that distances become shorter as Stockholm becomes bigger! In addition, the capacity of the existing Högdalen depot is being expanded in order to serve both the Green line and the Blue line. We are now looking for contractors who would like to join us in building tomorrow’s Metro. STOCKHOLM IS GROWING . It is estimated that the county will have 2.6 million inhabitants by 2025. To serve this growth, major investment in the expansion of public transport is planned. In January 2014, the Stockholm Agreement was signed by: the Municipalities of Järfälla, Nacka and Solna; the City of Stockholm; the Swedish State; and Stockholm County Council. It covers: building a completely new line from Oden- plan to Arenastaden; extending the Blue line to Nacka and Söderort; and expanding the Blue line from Akalla to Barkarby station. The Agreement also includes an undertaking by the municipalities to build 82,000 homes served by the new Metro. Stockholm County Council’s Metro Expansion Administration is responsi- ble for ensuring that the Metro is built. This includes the expansion of the existing depot at Högdalen. In other words, the entire investment has been both decided and financed. Construction start for most of the projects is sched- uled for 2018. The planning of tunnels, entrances and Mårten Frumerie, head of the depot capacity is in full swing. We are now beginning Metro Expansion Administration: the procurement process in respect of Metro con- “Some 30 contracts are being put out to tracts. These are presented in more detail in this tender. This is the largest investment in brochure. Further information about our procure- ments and schedules can be found on the public transport in the Stockholm region nyatunnelbanan.sll.se website. since the 1970s.” 3 Our contracts In total, some 30 contracts with a value varying from around SEK 30 million to just over SEK 1 billion will be going out Barkarby to tender. READ Track length, 4.1 km MORE ON 2 new stations PAGE 12 The contracts detailed in this brochure are primarily for Rock: 600,000 m3 the construction of access tunnels and main tunnels as Concrete: 25,000 m3 well as for building and installation work in respect of Estimated production cost: SEK 2.5 billion the new stations. Most of these contracts will be going out for tender between 2018 and 2022. Rock excavation and civil works “Rock excavation and civil work contracts” here means contracts for access tunnels and main tunnels. Construction of access tunnels primarily includes: preparatory work; sheet piling; and soil and rock These are mainly build only contracts. However, there excavation (injection and reinforcement work included may be some design and build contracts. Some of in this). the work, installations for example, may be included as design and build contracts in a larger build only Contracts for Metro main tunnels encompass track contract. tunnels, service tunnels and work with platform spaces. Work here encompasses (amongst other BEST contracts things); rock and soil excavation; groundwork; steel “BEST contracts” here means contracts for work with and concrete frameworks; platforms; water and railways (B), electricity (E), signals (S) and telecommu- sewage; ductwork; and fans in tunnels. nications (T). Details of these contracts are not given in this brochure. Contracts for BEST work will be The rock excavation and civil work contracts are awarded in different ways. In some cases, there will be mainly build only contracts. However, there may a separate contract that includes all the different ele- be some design and build contracts with, for example, ments. In others, there will be a separate contract for design responsibility for concrete work and temporary each of the work elements. BEST work may also be structures. part of a building and installation contract. Building and installation contracts Contracts for BEST work will be performance “Building and installation contracts” here primarily contracts or design and build contracts. means contracts for the new stations and for expan- sion of the Högdalen Depot. Work encompasses the The Metro Expansion Administration has decided that completion of frameworks by adding: glass sections; the 33 kV/750 V high-voltage installation will be a ceilings; partitions; wall panels; floors and other sur- single procurement for the entire expansion, and will face coverings; stairs; and wrought-iron work. It also be a design and build contract. includes installations such as: alarms and locks; water; sewage; sprinklers; electricity; telecommunications; lighting and ventilation; escalators and lifts; and “station furniture” (barriers, etc.). 4 Six unique projects • Arenastaden • Barkarby • Depot • Nacka • Södermalm • Söderort Arenastaden Track length, 4.1 km READ MORE ON 3 new stations PAGE 8 Rock: 670,000 m3 Concrete: 23,000 m3 Estimated production cost: SEK 3.7 billion Nacka Södermalm Track length, 4.1 km READ Track length, 4.5 km READ 3 new stations MORE ON MORE ON 2 new stations Rock: 750,000 m3 PAGE 18 PAGE 20 Rock: 930,000 m3 Concrete: 30,000 m3 Concrete: 20,000 m3 Estimated production cost: Estimated production cost: SEK 2.5 billion SEK 2.5 billion Söderort Track length, 2.7 km 1 new station READ Rock: 500,000 m3 MORE ON Concrete: 7,000 m3 PAGE 22 Estimated production Depot cost: SEK 2.5 billion Track length, 2.5 km Sidings READ MORE ON Workshop area PAGE 14 Rock: 180,000 m3 Estimated production cost: SEK 1 billion 5 This is how we build tunnels Rock tunnel construction has been a Stockholm speciality for over 100 years. Blast- ing of the Metro’s rock tunnels started in the 1930s. However, the major periods of Metro expansion were the 50s, 60s and 70s. It is now time for some more. The new Metro is being built entirely in rock. Only 5 metres long and 25 millimetres in diameter) and a ticket halls and a few installation shafts are being built steel fibre reinforced shotcrete. on the bedrock. In certain places (e.g. under the Salts- jön bay and eastern Södermalm) the new Metro will Stockholm has many tunnels, and finding space for run fairly deep. This is to ensure a safe rock overbur- more is a challenge. We have rock tunnels for, den below Saltsjön and to save having to build a amongst other things: sewage; electricity and tele- concrete tunnel at the bottom. We also wish to avoid communication lines; and road and rail traffic. A large other, existing tunnels and parallel projects. part of our present Metro runs in rock tunnels below the central parts of Stockholm. Stockholm’s bedrock is hard and very suitable for tun- nel construction. The challenge is to prevent leakage The new track tunnels will be both single-track and of the groundwater in the bedrock and the various soil double-track. Track tunnel size is determined by the types above this. To minimise the impact, the rock size of the Metro train and the provision of a suitable around the tunnels is to be sealed using a cement mix walkway for evacuation. Normally, a single-track that stops groundwater leaking into the tunnels. Track tunnel is around 5.6 metres wide and 5 metres high. tunnels are normally reinforced using steel bolts (3 to A double-track tunnel is around 10.5 metres wide and 6 metres high. Work on the City line – Photographer: Mikael Ullén 6 Parallel to the track tunnels, we are building a service To suit modern Metro trains (which are around tunnel for: operation and maintenance purposes; 145 metres long) the new stations are to have 150- technical installations; and safe evacuation in the metre platforms. Platform width is to vary from event of fire. All emergency services will also be able 10 metres at ordinary stations to 14 metres at stations to use this as an approach avenue. The service tunnel with high passenger flows. The height from rock connects to the track tunnels via cross tunnels. These bottom to the highest point in the platform space is are to be no more than 300 metres apart. To prevent around 9 metres. As perceived by future travellers, the the spread of fumes from track tunnels, the cross tun- floor to ceiling height of the platform space will vary nels are to have an air lock. Service tunnels are nor- from 4 to 7 metres. mally 4.5 metres wide and 6 metres high. 4500 1500 1100 2600 3600 4000 2500 TRAIN SPACE TRAIN SPACE RÖK RÖK ROADWAY 500 1200 1200 2800 2800 5300 5300 SERVICE TUNNEL SINGLE-TRACK TUNNEL DOUBLE-TRACK TUNNEL Rock cross section: 26 m2 Rock cross section: 26 m2 Rock cross section: 58 m2 7 Arenastaden The Metro is to be extended with a new line from Odenplan to Arenastaden. At Odenplan, the new Yellow line is to connect with the Green line. Three stations are to be built along the section – Hagastaden, Hagalund and Arenastaden. In many respects, this is a complex project. One of the having to work immediately adjacent to the Metro’s project’s challenges is presented by proximity to: adja- trafficked track tunnels. Another is coordination with cent facilities such as the City line; road tunnels for several other surrounding expansion projects.