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Jeju Undersea Tunnel
The Jeju Undersea Tunnel (제주해저터널) is a proposed undersea tunnel project to connect the South Korean provinces of South Jeolla and Jeju across the Jeju Strait, with intermediate stops at the islands of Bogildo and Chujado. The proposed 73 km tunnel is projected to take 11 years to complete at an estimated cost of 14.6 trillion South Korean won (11.2 billion US Dollars). History The underwater tunnel would allow the KTX bullet train to connect the port city of Mokpo and Jeju island. On June 19, 2013, the provincial government requested that the central government include 10 billion Korean won as part of the 2014 fiscal year budget to study and plan for the tunnel. The total length of the proposed railway is 167 km, including a 66 km surface interval from Mokpo to Haenam, a 28 km bridge section from Haenam to Bogil Island, and a 73 km stretch from Bogil to Chuja and Jeju Islands. The provincial government predicts that by the time the project reaches complet ...
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Undersea Tunnel
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. They are often used where building a bridge or operating a ferry link is unviable, or to provide competition or relief for existing bridges or ferry links.Sullivan, WalterProgress In Technology Revives Interest In Great Tunnels New York Times, June 24, 1986. Retrieved 15 August 2010. While short tunnels are often road tunnels which may admit motorized traffic, unmotorized traffic or both, concerns with ventilation lead to the longest tunnels (such as the Channel Tunnel or the Seikan Tunnel) being railway electrification systems, electrified rail tunnels. Types of tunnel Various methods are used to construct underwater tunnels, including an immersed tube and a submerged floating tunnel. The immersed tube method involves steel tube segments that are positioned in a trench in the sea floor and joined together. The trench is then covered and the water pumped from the tunnel. Submerged flo ...
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Honam Line
The Honam Line is a major railway line serving the Honam region (North and South Jeolla Provinces) in South Korea. The line is served by frequent passenger trains from Seoul (via the Gyeongbu Line) to Gwangju and Mokpo. History A Honam Railway from Seoul to Mokpo was first proposed in 1896 by a French company. After the start of the Russo-Japanese War, in May 1904, Imperial Japan forced Korea to sign an agreement granting the Japanese military control over railways, including the right to seize land. Japan then seized much of the fertile Honam plain in advance of a planned Honam Line. The construction of the line started in 1910. The first between Daejeon and Yeonsan was opened in July 1911. The line was extended to Ganggyeong in November 1911, to Iri (today Iksan) in March 1912, to Gimje in October 1912 and to Jeongeup in December 1912. Construction continued from the other end of the line, with the section from Mokpo to Hakgyo (today Hampyeong) opened in May 191 ...
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Unification Church Political Involvement
The Unification Church () is a new religious movement, whose members are called Unificationists or sometimes informally Moonies. It was founded in 1954 by Sun Myung Moon in Seoul, South Korea, as the Holy Spirit Association for the Unification of World Christianity (HSA-UWC; ); in 1994, the organization changed its name to the Family Federation for World Peace and Unification (FFWPU; ). It has a presence in approximately 100 countries around the world. Its leaders are Moon (prior to his death) and his wife, Hak Ja Han, whom their followers honor with the title "True Parents". Moon's book, ''The Divine Principle'', informs the beliefs of the Unification Church. Moon considered himself the Second Coming of Christ, claiming to complete the mission Jesus Christ was unable to because of his crucifixion: beginning a new ideal family, and a larger human lineage, free from sin. The Unification Church is well known for its mass weddings, known as ''Blessing'' ceremonies. It has been ...
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Tunnels In South Korea
A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ventilation openings at various points along the length. A pipeline differs significantly from a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment.Salazar, Waneta. ''Tunnels in Civil Engineering''. Delhi, India : Whit ...
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Water Transport In South Korea
Water is an inorganic compound with the chemical formula . It is a transparent, tasteless, odorless, and nearly colorless chemical substance. It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent). It is vital for all known forms of life, despite not providing food energy or organic micronutrients. Its chemical formula, , indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. In liquid form, is also called "water" at standard temperature and pressure. Because Earth's environment is relatively close to water's triple point, water exists on Earth as a solid, a liquid, and a gas. It forms precipitation in the form of rain and aerosols in the form of fog. Clouds consist of suspended droplets of water and ice, its solid state. When finely divided, crystalline ice may precipitat ...
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Rail Transport In South Korea
Railways are a part of the transport in South Korea, transport network in South Korea and an important mode of the rail transport, conveyance of people and rail freight transport, goods, though they play a secondary role compared to the road network. The network consists of of standard-gauge railway, standard-gauge lines connecting all major cities with the exception of Jeju City on Jeju Island, which does not have railways; of the network, are double-track railway, double-tracked and are railway electrification system, electrified. In 2018, rails carried 11.5 percent of all traffic in South Korea134.8million passengers and 30.9milliontonnes of freightwith roads carrying 88.3 percent. Passenger and freight services are primarily provided by the Korea Railroad Corporation, branded as Korail, a state-owned enterprise under the Ministry of Land, Infrastructure and Transport (South Korea), Ministry of Land, Infrastructure and Transport, although some rail lines and services, incl ...
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Transport In South Korea
Transportation in South Korea is provided by extensive networks of railways, highways, bus routes, ferry services and air routes that traverse the country. South Korea is the third country in the world to operate a maglev train, which was an automatically run people mover at Incheon International Airport. History Development of modern infrastructure began with the first Five-Year Development Plan (1962–66), which included the construction of 275 kilometers of railways and several small highway projects. Construction of the Gyeongbu Expressway, which connects the two major cities of Seoul and Busan, was completed on 7 July 1970. In 1970, around half of the population of Seoul, one of South Korea's most industrial cities, had moved to it only in the prior decade. With the rapid increase of people traveling across the country, a means of transporting large groups of people was needed. Public transportation, such as trams and railways, was installed for these people to move quickly. ...
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Coastal Construction
A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, such as that caused by wind wave, waves. The geology, geological composition of rock (geology), rock and soil dictates the type of shore that is created. Earth has about of coastline. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity. On land, they harbor ecosystems, such as freshwater marsh, freshwater or estuary, estuarine wetlands, that are important for birds and other terrestrial animals. In wave-protected areas, coasts harbor salt marshes, mangroves, and seagrass meadow, seagrasses, all of which can provide nursery habitat for finfish, shellfish, and other aquatic animals. Rocky shores are usually found along exposed coasts and provide habitat for a wide range of sessility (motility), sessile ...
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Proposed Undersea Tunnels In Asia
Proposal(s) or The Proposal may refer to: * Proposal (business) * Research proposal * Marriage proposal * Proposition, a proposal in logic and philosophy Arts, entertainment, and media * ''The Proposal'' (album), an album by Ransom & Statik Selektah Films * ''The Proposal'' (1957 film), an Australian television play based on Chekhov's 1890 play * ''The Proposal'' (2001 film), starring Nick Moran, Jennifer Esposito, and Stephen Lang * ''The Proposal'' (2009 film), starring Sandra Bullock and Ryan Reynolds * ''The Proposal'' (2022 film), starring Joe Joseph and Amara Raja * " La propuesta" ("The Proposal"), a short story in the 2014 Argentina anthology film ''Wild Tales'' Literature * '' Proposals (play)'', a 1997 play by Neil Simon * ''The Proposal'' (novel), 1999 and 35th book in the ''Animorphs'' series by K.A. Applegate * ''The Proposal'', alternative title of Chekhov's 1890 play ''A Marriage Proposal'' Television * ''The Proposal'' (American TV series), a 2018 realit ...
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Japan–Korea Undersea Tunnel
The Japan–Korea Undersea Tunnel, or Korea–Japan Undersea Tunnel, is a proposed tunnel project to connect Japan with South Korea via an undersea tunnel crossing the Korea Strait that would use the strait islands of Iki and Tsushima, a straight-line distance of approximately at its shortest.Sullivan, WalterProgress In Technology Revives Interest In Great Tunnels ''New York Times'', June 24, 1986. Retrieved August 15, 2010. The proposal, which has been under discussion intermittently since 1917, was followed with more concrete planning during the early 1940s. It was not pursued, however, until after World War II. In early 2008, the proposal came under renewed discussions by 10 senior Japanese lawmakers, who established a new committee to pursue it.Korea-Japan Tunnel Finally in Sight
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Undersea Tunnel
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. They are often used where building a bridge or operating a ferry link is unviable, or to provide competition or relief for existing bridges or ferry links.Sullivan, WalterProgress In Technology Revives Interest In Great Tunnels New York Times, June 24, 1986. Retrieved 15 August 2010. While short tunnels are often road tunnels which may admit motorized traffic, unmotorized traffic or both, concerns with ventilation lead to the longest tunnels (such as the Channel Tunnel or the Seikan Tunnel) being railway electrification systems, electrified rail tunnels. Types of tunnel Various methods are used to construct underwater tunnels, including an immersed tube and a submerged floating tunnel. The immersed tube method involves steel tube segments that are positioned in a trench in the sea floor and joined together. The trench is then covered and the water pumped from the tunnel. Submerged flo ...
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Tunnel Boring Machine
A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. TBMs are an alternative to drilling and blasting methods and "hand mining", allowing more rapid excavation through hard rock, wet or dry soil, or sand (although each requires specialized TBM technologies). TBM-bored tunnel cross-sections extend up to (through June 2023). TBM tunnels are typically circular in cross-section, but may also be square or rectangular, or U- or horseshoe-shaped. Much narrower tunnels are typically bored using trenchless construction methods or horizontal directional drilling rather than by TBMs. TBMs limit disturbance to the surrounding ground and produce a smooth tunnel wall, which reduces the cost of lining the tunnel; it also allows for tunneling in urban areas. Large TBMs are expensive and challenging to construct and transport, fixed costs which become less significant for longer tunnels. Tunneling speeds generally decline as tunnel size in ...
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