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Lee Tunnel
The Lee Tunnel, also known as the Stratford to East Ham deep tunnel, is a paradigm overflow sewer in East London for storage and conveyance of foul sewage mixed with rainwater. It was built as part of the Thames Tideway Scheme and runs from Abbey Mills Pumping Station down to pumps and storage tanks at Jenkins Lane, Beckton Sewage Treatment Works. It is wholly under the London Borough of Newham. This tunnel, of diameter, laid at between deep, at start, to at finish, captures , or 16 million tonnes, of sewage annually from the single largest polluting CSO in London - the amount varies with rainfall. This sewage overflow had flowed untreated into the River Lea, after which it diluted gradually in the Thames Tideway (the narrowest parts of the Thames Estuary). It can take 30 days for effluent to reach the sea from the Tideway. From its terminus, pumps send the effluent into the adjacent Beckton Sewage Treatment Works – the largest such works in Europe. From that wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abbey Mills Pumping Stations
Abbey Mills Pumping Station is a sewage pumping station in Mill Meads, East London, operated by Thames Water. The pumping station lifts sewage from the London sewerage system into the Northern Outfall Sewer and the Lee Tunnel, which both run to Beckton Sewage Treatment Works. The original pumping station, designed by engineer Joseph Bazalgette, Edmund Cooper, and architect Charles Driver, was built between 1865 and 1868, housing eight beam engines by Rothwell & Co. of Bolton. Two engines on each arm of a cruciform plan, with an elaborate Byzantine style, described as ''The Cathedral of Sewage''. Another of Bazalgette's designs, Crossness Pumping Station, is located south of the River Thames at Crossness, at the end of the Southern Outfall Sewer. A modern sewage pumping station (Station F) was completed in 1997 about south of the original station. History The pumping station was built at the site of an earlier watermill owned by the former Stratford Langthorne Abbey, from whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tideway
The Tideway is a part of the River Thames in England which is subject to tides. This stretch of water is downstream from Teddington Lock. The Tideway comprises the upper Thames Estuary including the Pool of London. Tidal activity Depending on the time of year, the river tide rises and falls twice a day by up to 7 m (24 ft). Because the tide goes against the outflow of fresh water from the Thames Basin, it takes longer to subside (6–9 hours) than it does to flow in (4–5 hours). London Bridge is used as the basis for published tide tables giving the times of high tide. High tide reaches Putney about 30 minutes later. Low-lying banks of London are naturally vulnerable to flooding by storm surges. The threat has increased due to a slow but continuous rise in high water level, caused by the extremely slow 'tilting' of Britain (up in the north and down in the south) due to post-glacial rebound and the gradual rise in sea levels due to climate change. The city and sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnels In London
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not 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. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tunne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Water Infrastructure
London's water supply infrastructure has developed over the centuries in line with the expansion of London. For much of London's history, private companies supplied fresh water to various parts of London from wells, the River Thames and the River Lea. Further demand prompted new conduits and sources, particularly when the Agricultural and Industrial Revolution caused a boom in London's population and housing. A crisis point was reached in the mid 19th century with the understanding that cholera and other disease arose from the extraction of water from the increasingly polluted tidal Thames. The Metropolis Water Act 1852 banned this practice, allowing water companies three years to find other sources. The 20th century saw consolidation of water suppliers and a substantial investment in London's water infrastructure as the population grew. London's water suppliers (known also as undertakings) were nationalised as the Metropolitan Water Board and then subsequently re-privatised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boris Johnson
Alexander Boris de Pfeffel Johnson (; born 19 June 1964) is a British politician, writer and journalist who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2019 to 2022. He previously served as Foreign Secretary from 2016 to 2018 and as Mayor of London from 2008 to 2016. Johnson has been Member of Parliament (MP) for Uxbridge and South Ruislip since 2015, having previously been MP for Henley from 2001 to 2008. Johnson attended Eton College, and studied Classics at Balliol College, Oxford. He was elected president of the Oxford Union in 1986. In 1989, he became the Brussels correspondent — and later political columnist — for ''The Daily Telegraph'', and from 1999 to 2005 was the editor of '' The Spectator''. Following his election to parliament in 2001 he was a shadow minister under Conservative leaders Michael Howard and David Cameron. In 2008, Johnson was elected mayor of London and resigned from the House of Common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayor Of London
The mayor of London is the chief executive of the Greater London Authority. The role was created in 2000 after the 1998 Greater London Authority referendum, Greater London devolution referendum in 1998, and was the first Directly elected mayors in England and Wales, directly elected mayor in the United Kingdom. The current mayor is Sadiq Khan, who took office on 9 May 2016. The position was held by Ken Livingstone from the creation of the role on 4 May 2000 until he was defeated in May 2008 by Boris Johnson, who then also served two terms before being succeeded by Khan. The mayor is scrutinised by the London Assembly and, supported by their Deputy Mayor of London, Mayoral Cabinet, directs the entirety of London, including the City of London (for which there is also the Lord Mayor of the City of London). Each London boroughs, London Borough also has a ceremonial mayor or, Mayor of Hackney, in Hackney, Mayor of Lewisham, Lewisham, Mayor of Newham, Newham and Mayor of Tower Ham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slip Forming
Slip forming, continuous poured, continuously formed, or slipform construction is a construction method in which concrete is poured into a continuously moving form.Nawy, ''Concrete Construction Engineering Handbook,'' 2008, p. 10—33. Slip forming is used for tall structures (such as bridges, towers, buildings, and dams), as well as horizontal structures, such as roadways. Slipforming enables continuous, non-interrupted, cast-in-place "flawless" (i.e. no joints) concrete structures which have superior performance characteristics to piecewise construction using discrete form elements. Slip forming relies on the quick-setting properties of concrete, and requires a balance between quick-setting capacity and workability. Concrete needs to be workable enough to be placed into the form and consolidated (via vibration), yet quick-setting enough to emerge from the form with strength. This strength is needed because the freshly set concrete must not only permit the form to "slip" by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herrenknecht
Herrenknecht AG is a German company that manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines. Roughly two-thirds of its 5,000 employees work at the company's headquarters in the installation of hydraulic and electronic components and final inspection. Approximately 300 work at three locations across China. The company has 82 subsidiaries around the world and has worked on 2,600 projects. History Martin Herrenknecht established the Martin Herrenknecht engineering company in 1975. Two years later, it became Herrenknecht GmbH with capital of 20 million euros. By 1984, Herrenknecht had opened Herrenknecht International Ltd. in Sunderland, England, its first foreign subsidiary. The company later acquired shares in Maschinen und Stahlbau GmbH of Dresden in 1991. Following the merger of the two companies in 1988, Herrenknecht became a joint-stock company (AG), expanded w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel Boring Machine
A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore through hard rock, wet or dry soil, or sand. Tunnel diameters can range from (micro-TBMs) to to date. Tunnels of less than a metre or so in diameter are typically done using trenchless construction methods or horizontal directional drilling rather than TBMs. TBMs can be designed to excavate non-circular tunnels, including u-shaped, horseshoe, square or rectangular tunnels. Tunnel boring machines are used as an alternative to drilling and blasting (D&B) methods in rock and conventional "hand mining" in soil. TBMs have the advantages of limiting the disturbance to the surrounding ground and producing a smooth tunnel wall. This significantly reduces the cost of lining the tunnel, and makes them suitable to use in urban areas. The major disadvan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pound Sterling
Sterling (abbreviation: stg; Other spelling styles, such as STG and Stg, are also seen. ISO code: GBP) is the currency of the United Kingdom and nine of its associated territories. The pound ( sign: £) is the main unit of sterling, and the word "pound" is also used to refer to the British currency generally, often qualified in international contexts as the British pound or the pound sterling. Sterling is the world's oldest currency that is still in use and that has been in continuous use since its inception. It is currently the fourth most-traded currency in the foreign exchange market, after the United States dollar, the euro, and the Japanese yen. Together with those three currencies and Renminbi, it forms the basket of currencies which calculate the value of IMF special drawing rights. As of mid-2021, sterling is also the fourth most-held reserve currency in global reserves. The Bank of England is the central bank for sterling, issuing its own banknotes, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vinci (construction)
Vinci (corporately styled VINCI) is a French concessions and construction company founded in 1899 as Société Générale d'Enterprises. Its head office is in Nanterre, in the western suburbs of Paris. Vinci is listed on Euronext's Paris stock exchange and is a member of the Euro Stoxx 50 index. History The company was founded by Alexandre Giros and Louis Loucheur as Société Générale d’Entreprises S.A. (SGE) in 1899. SGE was owned by Compagnie générale d'électricité (CGE), now Alcatel, from 1966 until 1981, when Saint-Gobain acquired a majority stake. Companies acquired by SGE include Sogea (a civil engineering firm founded in 1878), bought in 1986, Campenon Bernard (a civil engineering and development firm founded in 1920), bought in 1988, and Norwest Holst (a British civil engineering firm founded in 1969 by the merger of Holst & Co, established in 1918, and Norwest Construction, established in 1923), bought in 1991. In 1988, SGE was acquired by Compagnie génér ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morgan Sindall Group
Morgan Sindall Group plc is a leading British Construction & Regeneration group, headquartered in London employing around 6,700 employees and operating in the public, regulated and private sectors. It reports through six divisions of Construction & Infrastructure, Fit Out, Property Services, Partnership Housing, Urban Regeneration and Investments. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. History The company was founded by John Morgan and Jack Lovell with £1,000 from joint savings in 1977 and was initially based at Golden Square in Soho. Overbury, a fit out contractor which had been in business since 1942, was acquired by the company in 1985. The company secured a listing on the London Stock Exchange in 1994 when it entered into a reverse takeover of William Sindall plc. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
