Busan-Geoje Fixed Link
Encyclopedia
The Busan-Geoje Fixed Link is an 8.2 kilometres (5.1 mi) bridge-tunnel fixed link that connects the South Korea
n city of Busan
to Geoje Island. The name of the bridge is Geoga Bridge (거가 대교). The route opened on December 13, 2010 and shortens the travelling distance between Geoje Island and Busan by about 60 kilometres (37.3 mi). The new road has two lanes in each direction and carries National Road 58.
The fixed link is expected to open Geoje Island to tourist-related development and to save US$300 million in costs related to traffic delays from the longer route.
. GK Fixed Link Corp, a consortium of seven Korean contractors, has a 40-year contract to build, operate and transfer
the fixed link. The project is planned to cost $1.8 billion (US). The government has provided only one-fourth of the cost; the rest is financed by the consortium to be repaid by tolls during the life of the contract. The lead contractor in the consortium is Daewoo Engineering & Construction, Co.
Designers involved with the project include COWI A/S
(Denmark), Halcrow Group
(United Kingdom), Tunnel Engineering Consultants (Netherlands), Pihl and Son (Denmark), Arcadis US (USA), and Ben C. Gerwick (USA).
The fixed link starts on Geoje Island, crosses three islet
s (Jeo, Jungjuk and Daejuk) and ends on Gaduk Island. In addition to the tunnel between Daejuk and Gaduk islands, a tunnel is used to cross each of the islets.
with a 475 m (1,558.4 ft) main span and 220 m (721.8 ft) side spans. This bridge provides 52 metres (170.6 ft) of navigational clearance and has two 156 m (511.8 ft) diamond-shaped pylons.
immersed tunnel
, at 3.2 kilometres (2 mi). It is Korea's first immersed tunnel. It will be the second deepest immersed tunnel of any use after completion of the Marmaray (Bosphorus rail tunnel) in 2012.
The tunnel is made up of 180 m (590.6 ft) segments constructed in a drydock in Anjeon. Each segment is towed 35 kilometres (21.7 mi) by barges and sunk into place.
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
n city of Busan
Busan
Busan , formerly spelled Pusan is South Korea's second largest metropolis after Seoul, with a population of around 3.6 million. The Metropolitan area population is 4,399,515 as of 2010. It is the largest port city in South Korea and the fifth largest port in the world...
to Geoje Island. The name of the bridge is Geoga Bridge (거가 대교). The route opened on December 13, 2010 and shortens the travelling distance between Geoje Island and Busan by about 60 kilometres (37.3 mi). The new road has two lanes in each direction and carries National Road 58.
The fixed link is expected to open Geoje Island to tourist-related development and to save US$300 million in costs related to traffic delays from the longer route.
Design and construction
The bridge was built under a public-private partnershipPublic-private partnership
Public–private partnership describes a government service or private business venture which is funded and operated through a partnership of government and one or more private sector companies...
. GK Fixed Link Corp, a consortium of seven Korean contractors, has a 40-year contract to build, operate and transfer
Build-Operate-Transfer
Build-own-operate-transfer or build-operate-transfer is a form of project financing, wherein a private entity receives a concession from the private or public sector to finance, design, construct, and operate a facility stated in the concession contract...
the fixed link. The project is planned to cost $1.8 billion (US). The government has provided only one-fourth of the cost; the rest is financed by the consortium to be repaid by tolls during the life of the contract. The lead contractor in the consortium is Daewoo Engineering & Construction, Co.
Designers involved with the project include COWI A/S
COWI A/S
COWI A/S is an international consulting group, specialising in engineering, environmental science and economics, based in Lyngby, Denmark.It has been involved in more than 50,000 projects in 175 countries...
(Denmark), Halcrow Group
Halcrow Group Limited
Halcrow Group Limited is an engineering consultancy company, based in the United Kingdom.Halcrow is one of the UK's leading consultancies, with a pedigree stretching back to 1868. The UK-based consultancy specialises in the provision of planning, design and management services for infrastructure...
(United Kingdom), Tunnel Engineering Consultants (Netherlands), Pihl and Son (Denmark), Arcadis US (USA), and Ben C. Gerwick (USA).
Route
The route connects Busan, Korea's largest port city, to the shipbuilding industries and tourism destinations on Geoje Island. It replaces either a three and one half hour journey by road or a two-hour journey by ferry. The new route is expected to cut travel time down to forty minutes.The fixed link starts on Geoje Island, crosses three islet
Islet
An islet is a very small island.- Types :As suggested by its origin as islette, an Old French diminutive of "isle", use of the term implies small size, but little attention is given to drawing an upper limit on its applicability....
s (Jeo, Jungjuk and Daejuk) and ends on Gaduk Island. In addition to the tunnel between Daejuk and Gaduk islands, a tunnel is used to cross each of the islets.
Bridge 1
The 1.87 km (1.2 mi) bridge between Jungjuk and Jeo islands includes a cable-stayed bridgeCable-stayed bridge
A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....
with a 475 m (1,558.4 ft) main span and 220 m (721.8 ft) side spans. This bridge provides 52 metres (170.6 ft) of navigational clearance and has two 156 m (511.8 ft) diamond-shaped pylons.
Bridge 2
Between Geoje and Jeo islands, a 1.65 km (1 mi) bridge includes a three-pylon cable-stay bridge. This bridge has two mainspans of 230 metres (754.6 ft) with side spans of 106 metres (347.8 ft). The pylons are 102 metres (334.6 ft) tall and there is 36 metres (118.1 ft) of clearance underneath the bridge.Tunnel
When it opens, the tunnel will be the world’s deepest immersed roadway tunnel (48 metres (157.5 ft) below mean water level) and the world’s second-longest concreteConcrete
Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...
immersed tunnel
Immersed tube
An immersed tube is a kind of underwater tunnel composed of segments, constructed elsewhere and floated to the tunnel site to be sunk into place and then linked together. They are commonly used for road and rail crossings of rivers, estuaries and sea channels/harbours...
, at 3.2 kilometres (2 mi). It is Korea's first immersed tunnel. It will be the second deepest immersed tunnel of any use after completion of the Marmaray (Bosphorus rail tunnel) in 2012.
The tunnel is made up of 180 m (590.6 ft) segments constructed in a drydock in Anjeon. Each segment is towed 35 kilometres (21.7 mi) by barges and sunk into place.
External links
- Busan-Geoje Link in the StructuraeStructuraeStructurae is an online database containing works of structural and civil engineering of all kinds such as bridges, high-rise buildings, towers, dams, etc. Additionally, the database contains information on companies and persons involved in the design or construction of the structures...
database. Retrieved on 2009-02-22.