جسر الحزام العظيم

Coordinates: 55°20′N 10°58′E / 55.333°N 10.967°E / 55.333; 10.967
Great Belt Bridge
(الجسر الشرقي)
Storebæltsbroen from Sjælland.jpg
الجسر الشرقي كما يبدو من جانب شلاند
Coordinates55°20′31″N 11°02′10″E / 55.34194°N 11.03611°E / 55.34194; 11.03611
Carries4 حارات من E20
Crossesالحزام العظيم
Official nameØstbroen
Maintained byA/S Storebælt
Characteristics
Designجسر معلق
Materialخرسانة وصلب
Total length6790 متر
Width31 متر
Height254 متر
Longest span1624 متر
Piers in water19
Clearance below65 متر
History
المصممCOWI, Ramboll & Dissing+Weitling
أنشأههوختيف، سكانسكا، Højgaard & Schultz and Monberg & Thorsen
بدء الإنشاء1991
انتهاء الإنشاء1998
Opened14 يونيو 1998
Statistics
رسم المرور275 DKK (€37/$40) per car.[1]
الموقع

جسر الحزام العظيم (Great Belt Bridge ؛ دنماركية: Storebæltsbroen) أو الرابط الثابت على الحزام العظيم (دنماركية: Storebæltsforbindelsen) هو multi-element fixed link crossing the Great Belt strait between the Danish islands of Zealand and Funen. It consists of a road suspension bridge and a railway tunnel between Zealand and the small island Sprogø in the middle of the Great Belt, and a box-girder bridge for both road and rail traffic between Sprogø and Funen. The total length is 18 kilometres (11 mi).[2]

The term Great Belt Bridge commonly refers to the suspension bridge, although it may also be used to mean the box-girder bridge or the link in its entirety. Officially named the East Bridge, the suspension bridge was designed by the Danish firms COWI and Ramboll, and the architecture firm Dissing+Weitling. It has the world's sixth-longest main span (1.6 km (1 mi)). At the time of the opening of the bridge it was the second longest, beaten by the Akashi Kaikyō Bridge opened a few months previously.

Together with the New Little Belt Bridge, the Great Belt link provides a continuous road and rail connection between Copenhagen and the Danish mainland. The link replaced the Great Belt ferries service, which had been the primary means of crossing the Great Belt. After more than 50 years of debate, the Danish government decided in 1986 to construct a link;[3] it opened to rail traffic in 1997 and to road traffic in 1998. At an estimated cost of DKK 21.4 billion (EUR 2.8 billion) (1988 prices),[2] the link is the largest construction project in Danish history.[4] It has reduced travel times significantly; previously taking one hour by ferry, the Great Belt can now be crossed in ten minutes. This link, together with the Øresund Bridge (built 1995–1999) and the Little Belt Bridge, have together enabled driving from mainland Europe to Sweden through Denmark.

Operation and maintenance are performed by A/S Storebælt under Sund & Bælt. Construction and maintenance are financed by tolls on vehicles and trains. Cyclists are not permitted to use the bridge, but bicycles may be transported by train or bus.

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التاريخ

The Great Belt ferries entered service between the coastal towns of Korsør and Nyborg in 1883, connecting the railway lines on either side of the Belt. In 1957, road traffic was moved to the Halsskov–Knudshoved route, about 1.5 kilometres to the north and close to the fixed link.

Construction drafts for a fixed link were presented as early as the 1850s, with several suggestions appearing in the following decades. The Danish State Railways, responsible for the ferry service, presented plans for a bridge in 1934. The concepts of bridges over Øresund (152 million DKK) and Storebælt (257 million DKK) were calculated around 1936.[5] In 1948, the Ministry for Public Works (now the Ministry of Transport) established a commission to investigate the implications of a fixed link.[6]

The first law concerning a fixed link was enacted in 1973,[7] but the project was put on hold in 1978 as the Venstre (Liberal) party demanded postponing public spending. Political agreement to restart work was reached in 1986, with a construction law (دنماركية: anlægslov) being passed in 1987.[8]

The design was carried out by the engineering firms COWI and Ramboll together with Dissing+Weitling architecture practice.

Construction of the link commenced in 1988. In 1991, Finland sued Denmark at the International Court of Justice, on the grounds that Finnish-built mobile offshore drilling units would be unable to pass beneath the bridge.[9] The two countries negotiated a financial compensation of 90 million Danish kroner, and Finland withdrew the lawsuit in 1992.[10]

A European Court of Justice ruling in 1993 found that a contractual condition requiring use of local labour and local materials in constructing the bridge was incompatible with the principles of the EEC Treaty.[11]

The link is estimated to have created a value of 379 billion DKK after 50 years of use.[12]

In 2022, the bridge was crossed as part of the route of Stage 2 of the 2022 Tour de France.

انظر أيضاً: Great Belt § International waterway


الإنشاء

The West Bridge
Storebæltsbroen2.jpg
The West Bridge (foreground) seen from Nyborg at Funen.
Coordinates55°18′42″N 10°54′23″E / 55.31167°N 10.90639°E / 55.31167; 10.90639
CarriesMotor vehicles, trains
CrossesGreat Belt
Official nameVestbroen
Maintained byA/S Storebælt
Characteristics
DesignBox girder bridge
Total length6,611 metres (21,690 ft)
Width25 metres (82 ft)
Longest span110 metres (361 ft)
Piers in water62
Clearance below18 metres (59 ft)
History
بدء الإنشاء1988
انتهاء الإنشاء1994
Opened
  • 1 June 1997 (rail traffic)
  • 14 June 1998 (road traffic)
الموقع
The East Tunnel
نظرة عامة
المكان Great Belt
الاحداثيات 55°21′15″N 11°01′59″E / 55.35417°N 11.03306°E / 55.35417; 11.03306
الحالة Active
بدء Halsskov
انتهى Sprogø
Operation
المرور Trains
Character Mainline railway
التقنية
الطول 8,024 metres (4.986 mi)
القياس 1٬435 mm (4 ft 8 1⁄2 in)
Electrified 25 kV AC 50 Hz
الارتفاع الأقصى −15.1 metres (−50 ft)[13]
الارتفاع الأدنى −75 metres (−246 ft)[2][13]
Grade 16 ‰ (max)[13]

The construction of the fixed link became the biggest building project in the history of Denmark. In order to connect Halsskov on Zealand with Knudshoved on Funen, 18 kilometres (11 mi) to its west, a two-track railway and a four-lane motorway had to be built, via the small island of Sprogø in the middle of the Great Belt. The project comprised three different tasks: the East Bridge for road transport, the East Tunnel for rail transport and the West Bridge for road and rail transport combined. The construction work was carried out by Sundlink Contractors, a consortium of Skanska, Hochtief, Højgaard & Schultz (which built the West Bridge) and Monberg & Thorsen (which built the eight-kilometre (5.0 mi) section under the Great Belt).[14] The work of lifting and placing the elements was carried out by Ballast Nedam using a floating crane.[15]

الجسر الشرقي

Built between 1991 and 1998 at a cost of US$950 million,[16] the East Bridge (Østbroen) is a suspension bridge between Halsskov and Sprogø. It is 6,790 metres (4.219 mi) long with a free span of 1,624 metres (5,328 ft),.[2] The East Bridge had been planned to be completed in time to be the longest bridge in the world, but there were delays in construction. Therefore, it happened that the Akashi-Kaikyo Bridge was opened two months earlier.

The vertical clearance for ships is 65 metres (213 ft), meaning the world's largest cruise ship, an Oasis-class cruise ship, just fits under with its smokestack folded.[17] At 254 metres (833 ft) above sea level, the two pylons of the East Bridge are the highest points on self-supporting structures in Denmark. Some radio masts, such as Tommerup transmitter, are taller.

صورة بانورامية للجسر الشرقي

To keep the main cables tensioned, an anchorage structure on each side of the span is placed below the road deck. After 15 years, the cables have no rust. They were scheduled for a 15 million DKK paint job, but due to corroding cables on other bridges, the decision was made to instead install a 70 million DKK sealed de-humidifying system in the cables. This was carried out by UK engineering firm Spencer Group, with help from Danish subcontractors Davai who provided the manpower, and Belvent A/S who provided the dehumidification system.[18][19][20] Nineteen concrete pillars (12 on the Zealand side, seven by Sprogø), 193 metres (633 ft) apart, carry the road deck outside the span.

الجسر الغربي

The West Bridge (Vestbroen) is a box girder bridge[21] between Sprogø and Knudshoved. It is 6,611 metres (4.108 mi) long, and has a vertical clearance for ships of 18 metres (59 ft).[2] It is actually two separate, adjacent bridges: the northern one carries rail traffic and the southern one road traffic. The pillars of the two bridges rest on common foundations below sea level.[22] The West Bridge was built between 1988 and 1994; its road/rail deck comprises 63 sections, supported by 62 pillars.

East Tunnel

The twin bored tunnel tubes of the East Tunnel (Østtunnelen) are each 8,024 m (4.986 miles) long.[2] There are 31 connecting tunnels between the two main tunnels, at 250 metres (820 ft) intervals. The equipment that is necessary for train operation in the tunnels[مطلوب توضيح] is installed in the connecting tunnels, which also serve as emergency escape routes.

There were delays and cost overruns in the tunnel construction. The plan was to open it in 1993, giving the trains a head start of three years over road traffic, but train traffic started in 1997 and road traffic in 1998. During construction the sea bed gave way and one of the tunnels was flooded. The water continued to rise and reached the end at Sprogø, where it continued into the (still dry) other tunnel. The water damaged two of the four tunnel boring machines, but no workers were injured. Only by placing a clay blanket on the sea bed was it possible to dry out the tunnels. The two damaged machines were repaired and the majority of the tunnelling was undertaken from the Sprogø side. The machines on the Zealand side tunnelled through difficult ground and made little progress. A major fire on one of the Zealand machines in June 1994 stopped these drives and the tunnels were completed by the two Sprogø machines.

A total of 320 compressed air workers were involved in 9,018 pressure exposures in the four tunnel-boring machines.[23] The project had a decompression sickness incidence of 0.14% with two workers having long-term residual symptoms.[23]

التأثير على المرور

جسر الحزام العظيم is located in الدنمارك
جسر الحزام العظيم
جسر الحزام العظيم
كوبنهاگن
أودنسه
class=notpageimage|
موقع جسر الحزام العظيم في الدنمارك
منظر جوي للجزء الشرقي، مع الجسر الشرقي، أو Storebæltsbroen

Prior to the opening of the link, an average of 8,000 cars used the ferries across the Great Belt every day. The traffic across the strait increased 127 percent over the first year after the link's opening[24] due to the so-called traffic leap: new traffic generated by the improved ease, facility and lower price of crossing the Great Belt. In 2021, an average of 34,100 vehicles used the link each day. On August 7, 2022 a record 61,528 vehicles passed the bridge in 24 hours. [25] The increase in traffic is partly caused by the general growth of traffic, partly diversion of traffic volume from other services via ferry and services.

The fixed link has produced considerable savings in travel time between eastern and western Denmark. Previously, it took approximately 90 minutes on average to cross the Great Belt in a car with transfer by ferry, including the waiting time at the ports. It took considerably longer during peak periods, such as weekends and holidays. With the opening of the link, the journey is now between 10 and 15 minutes.

By train the time savings are significant as well. The journey has been reduced by 60 minutes, and there are many more seats available because more carriages may be added to a train that does not have to fit on a ferry. The seating capacity offered by DSB across the Great Belt on an ordinary Wednesday has risen from 11,060 seats to 37,490 seats. On Fridays the seating capacity exceeds 40,000 seats.

The shortest travel times are: Copenhagen–Odense 1 hour 15 minutes, Copenhagen–Aarhus 2 hours 30 minutes, Copenhagen–Aalborg 3 hours 55 minutes and Copenhagen–Esbjerg 2 hours 35 minutes.

Flights between Copenhagen and Odense, and between Copenhagen and Esbjerg have ceased, and the train now has the largest market share between Copenhagen and Aarhus.

Together with the Øresund Bridge, and the two Little Belt bridges, the link provides a direct fixed connection between western Continental Europe and northern Scandinavia, eventually connecting all parts of the European Union except Ireland, Malta, Cyprus, and outlying islands. Most people from Zealand still prefer to take the ferry between Puttgarden and Rødby, as it is a much shorter distance and provides a needed break for those travelling a long distance.[بحاجة لمصدر]

For freight trains, the fixed links are a large improvement between Sweden and Germany, and between Sweden and the UK. The Sweden-to-Germany ferry system is still used to some extent owing to limited rail capacity, with heavy passenger traffic over the bridges and some single track stretches in southern Denmark and northern Germany.

The Great Belt was used by now defunct night passenger trains between Copenhagen and Germany, which were too long to fit on the ferries. Day trains on the Copenhagen-Hamburg route first continued to use the Fehmarn Belt ferries, utilising short diesel trains, but now also use the Great Belt route, which potentially allows longer trains to be used, increasing capacity.

By 2028, the Fehmarn Belt Fixed Link is expected to be complete with much of the international traffic being shifted from the Great Belt Fixed Link. This more direct route will reduce the rail journey from Hamburg to Copenhagen from 4:45 to 3:30 hours.


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تعريفة المرور

The toll area at night. Each booth can be used for electronic toll collection (green booths), credit card (blue booths) or manual payment (yellow booths), depending on the load on each payment method.

في 2019, the vehicle tolls were:[26]

Vehicle One trip One day return Notes
Standard car 245 DKK (€35) Vary Discounted price at 193.80 DKK for using BroBizz and being part of Club Storebælt.
Motorcycle 130 DKK (€18) (N/A) Solo motorcycles only. Trailer combinations charged at 245 DKK (€35).
Motorhome, 6–10 m 370 DKK (€52) (N/A) Total weight up to 3,500 kg. Motorhomes over 3,500 kg charged at 610 DKK (€85).
Tourist bus, 10–20 m 965 DKK (€135) (N/A) —
Comparing with trains, shortest possible crossing of the Belt (Nyborg to Korsør): 106 DKK (standard ticket). Discounted DSB Orange ticket from 25 DKK.[27]

الآثار البيئية

The East Bridge as seen from above.

Environmental considerations have been an integral part of the project, and have been of decisive significance for the choice of alignment and determination of the design. Environmental considerations were the reason why Great Belt A/S established an environmental monitoring programme in 1988, and initiated co-operation with authorities and external consultants on the definition of environmental concerns during the construction work and the professional requirements to the monitoring programme. This co-operation issued in a report published at the beginning of 1997 on the state of the environment in the Great Belt. The conclusion of the report was that the marine environment was at least as good as before construction work began.

With regards to the water flow, the link must comply with the so-called zero-solution. This has been achieved by deepening parts of the Great Belt, so that the water flow cross section has been increased. This excavation compensates for the blocking effect caused by the bridge pylons and approach ramps. The conclusion of the report is that water flows are now almost at the level they were before the bridge was built.

The fixed link has generated increased road traffic volume, which has meant increased air pollution. However, there has been significant savings in the energy consumption by switching from ferries to the fixed link. Train and car ferries consume much energy for propulsion, high-speed ferries consume large amounts of energy at high speeds, and air transport is highly energy consuming. Domestic air travel over the Great Belt was greatly reduced after the opening of the bridge, with the former air travellers now using trains and private cars.

The larger energy consumption by ferries as opposed to via the fixed link is most clearly seen when comparing short driving distances from areas immediately east or west of the link. For more extended driving distances the difference in energy consumption is smaller, but any transport within Denmark across the link shows very clear energy savings.

During 2009, seven large wind turbines, likely Vestas 3MWs totalling 21MW capacity, were erected in the sea north of Sprogø to contribute to the electrical demand of the Great Belt Link. Their hub heights are about the same level as the road deck of the suspension bridge. Part of the project was to showcase sea wind at the December 2009 Copenhagen climate meeting.[28]

الحوادث

During construction 479 work-related accidents were reported, of which 53 resulted in serious injuries or death.[29] Seven workers died as a result of work-related accidents.[30]

The West Bridge has been struck by sea traffic twice. While the link was still under construction on 14 September 1993, the ferry M/F Romsø drifted off course in bad weather and hit the West Bridge. At 19:17 on 3 March 2005, the 3,500-ton freighter MV Karen Danielsen crashed into the West Bridge 800 metres from Funen. All traffic across the bridge was halted, effectively cutting Denmark in two. The bridge was re-opened shortly after midnight, after the freighter was pulled free and inspectors had found no structural damage to the bridge.[31]

The East Bridge has so far been in the clear, although on 16 May 2001, the bridge was closed for 10 minutes as the Cambodian 27,000-ton bulk carrier Bella was heading straight for one of the anchorage structures. The ship was deflected by a swift response from the navy.[32]

On 5 June 2006, a maintenance vehicle burst into flames in the east-bound railway tunnel at about 21:30. Nobody was hurt; its crew of three fled to the other tunnel and escaped. The fire was put out shortly before midnight, and the vehicle was removed from the tunnel the next day. Train service resumed on 6 June at reduced speed, and normal service was restored on 12 June.

On 2 January 2019, eight people were killed in a train accident on the West Bridge. A passenger train was hit by a semi-trailer that fell off a freight train travelling in the opposite direction.[33]

In 2023, a 57-year-old truck driver was arrested by police after traffic on the bridge was disrupted due to spilled potatoes. Police stated that they were working on the hypothesis that the potatoes were either planted intentionally or as an accident.[34]

عمليات

In 2009, a study characterized the rail tunnel (together with other major projects like the Channel Tunnel between England and France) as financially non-viable.[35]

معرض صور

  • The East Bridge from below

    The East Bridge from below

  • View from below the East Bridge south-east toward Korsør

    View from below the East Bridge south-east toward Korsør

  • The East Bridge from the top of the eastern pylon

    The East Bridge from the top of the eastern pylon

  • The East Bridge on a clear day

    The East Bridge on a clear day

  • A closeup of the two pylons

    A closeup of the two pylons

  • Allure of the Seas passing under the East Bridge

    Allure of the Seas passing under the East Bridge

  • The East Bridge at sunset

    The East Bridge at sunset

  • The East Bridge at night

    The East Bridge at night

  • The East Bridge at sunset seen from a ship

    The East Bridge at sunset seen from a ship

  • Passing under the East Bridge

    Passing under the East Bridge

  • West bridge

    West bridge

انظر أيضاً

الهامش

  1. ^ Storebælt.dk (2024). "Prices". A/S Storebælt. Retrieved 21 January 2024.
  2. ^ أ ب ت ث ج ح "Fakta og historie". A/S Storebælt. Retrieved 18 November 2008.
  3. ^ DSB: Passagerens håndbog (in الدانمركية). DSB. 1990. p. 73. ISBN 87-7025-152-5.
  4. ^ "The Bridge". A/S Storebælt. Archived from the original on 23 June 2013. Retrieved 4 December 2008.
  5. ^ Marstrand, Wilhelm. "Det store vej- og broprojekt" Ingeniøren, 14 March 1936. Accessed: 2 December 2014.
  6. ^ Hellesen, Jette Kjærulff; Ole Tuxen. "Planer om fast forbindelse". Korsør i 15.000 år (in الدانمركية). Korsør Municipality. Archived from the original on 4 July 2009. Retrieved 2009-06-30.
  7. ^ Hellesen, Jette Kjærulff; Ole Tuxen. "Korsør og Storebæltsforbindelsen 1973–95". Korsør i 15.000 år (in الدانمركية). Korsør Municipality. Archived from the original on 4 July 2009. Retrieved 2009-06-30.
  8. ^ Hellesen, Jette Kjærulff; Ole Tuxen. "Den faste forbindelse". Korsør i 15.000 år (in الدانمركية). Korsør Municipality. Archived from the original on 4 July 2009. Retrieved 2009-06-30.
  9. ^ Latest developments | Passage through the Great Belt (Finland v. Denmark) | International Court of Justice
  10. ^ Ministry for Foreign Affairs (Finland) (1994-03-24), "Kirjallinen kysymys: Suomen valtion Juutinrauman siltahankkeesta saamista korvauksista", KK 94/1994 vp (in فنلندية and سويدية), Parliament of Finland [dead link]
  11. ^ Heard, E., Evaluation and the audit trail, Bevan Brittan, published 8 June 2016, accessed 31 December 2023
  12. ^ "Economic analysis" (PDF). Archived from the original (PDF) on 22 February 2015. Retrieved 22 February 2015.
  13. ^ أ ب ت "To broer og en tunnel 2008". Sund & Bælt. May 2008. Archived from the original on 19 June 2009. Retrieved 18 November 2008.
  14. ^ "Great Belt Fixed Link Rail and Road Project, Denmark". Railway Technology. Retrieved 8 January 2011.
  15. ^ "The final span over the Öresund". Hochtief. Archived from the original on 11 July 2011. Retrieved 8 January 2011.
  16. ^ "Construction Facts - The Sourcebook of Statistics, Records and Resources", Engineering News Record (McGraw Hill) 251, Number 20a, November 2003, http://enr.construction.com/engineering/pdf/sourcebook/global/2003-Top_Global_Sourcebook.pdf, retrieved on 9 August 2014 
  17. ^ "Largest cruise ship passes bridge challenge". USA Today. 2009-11-01. Retrieved 2010-11-26.
  18. ^ Andersen, Ulrik. "Drying the Great Belt Bridge cables" (in Danish). Ingeniøren, 20 September 2013. Accessed: 21 September 2013. Video of cable sleeving
  19. ^ Brøndum, Christian. "Pengemaskinen på Storebælt skal op i fart". Berlingske, 18 September 2013. Accessed: 17 October 2013.
  20. ^ Kirchgässner, Martin. "Specialister på kravlende platform pakker Storebæltsbroens kabler ind" [Specialists in crawling platforms wrap the cables of the Great Belt Bridge] (in Danish) Ingeniøren, 15 June 2014. Archived 7 أغسطس 2018 at the Wayback Machine. Accessed: 15 June 2014.
  21. ^ "Great Belt West Bridge". Structurae. Retrieved 18 November 2008.
  22. ^ "Storebæltsbroen - nyt dykkersted i Danmark" [The Great Belt Bridge: New diving place in Denmark]. Archived 3 مارس 2016 at the Wayback Machine.
  23. ^ أ ب Andersen, H. L. (2002). "Decompression sickness during construction of the Great Belt Tunnel, Denmark". Undersea and Hyperbaric Medicine Journal. 29 (3): 172–88. PMID 12670120. Archived from the original on 2 September 2012. Retrieved 2010-11-14.{{cite journal}}: CS1 maint: unfit URL (link)
  24. ^ Claus F. Baunkjær. "Cautious traffic assumptions for the Fehmarnbelt project Archived 2 يوليو 2015 at the Wayback Machine" Fehmarn Belt Fixed Link, 28 March 2013. Accessed: 6 October 2013.
  25. ^ "Storebælt".
  26. ^ "Prices - Storebælt". Storebaelt.dk. Archived from the original on 23 September 2019. Retrieved 2019-09-28.
  27. ^ "DSB: Find din togrejse og pris". www.dsb.dk. Retrieved 2019-09-28.
  28. ^ Danish: "VINDMØLLEINDUSTRIEN - Sund & Bælt har fået Energistyrelsens ja til syv havvindmøller nord for Sprogø". Archived from the original on 3 June 2009. Retrieved 2009-01-17.
  29. ^ Report in Danish Archived 28 نوفمبر 2007 at the Wayback Machine
  30. ^ "European Foundation for Improvement of Living and Working condition".
  31. ^ "Rammed ship: Skipper was drunk". News24. 2005-03-07. Archived from the original on 21 June 2008. Retrieved 2008-06-04.
  32. ^ "Storebæltsbro nær påsejlet af fragtskib". Ingeniøren (in الدانمركية). 2001-05-16. Archived from the original on 16 January 2009. Retrieved 2008-06-04.
  33. ^ "Eight killed in train accident on bridge linking Denmark islands".
  34. ^ "In Denmark, potatoes on key bridge cause havoc". AP News. June 1, 2023. Retrieved June 5, 2023.
  35. ^ Flyvbjerg, B. (2009). "Survival of the Unfittest: Why the Worst Infrastructure Gets Built—and What We Can Do About It". Oxford Review of Economic Policy. 25 (3): 344–367. arXiv:1303.6571. doi:10.1093/oxrep/grp024.

وصلات خارجية

مشاع المعرفة فيه ميديا متعلقة بموضوع Storebæltsbroen.
صورة خارجية
Photos from the pylons More photos

قالب:Landmarks of Funen


55°20′N 10°58′E / 55.333°N 10.967°E / 55.333; 10.967

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