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1 разбивка трассы железной дороги
Русско-английский политехнический словарь > разбивка трассы железной дороги
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2 железнодорожная трасса
Русско-английский большой базовый словарь > железнодорожная трасса
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3 железная дорога
1. rail2. railroad3. railway -
4 разбивка трассы железной дороги
Cartography: railroad surveyingУниверсальный русско-английский словарь > разбивка трассы железной дороги
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5 съёмка железных дорог
Cartography: railroad surveyingУниверсальный русско-английский словарь > съёмка железных дорог
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6 трасиране на жп линия
жп.railroad surveyingБългарски-Angleščina политехнически речник > трасиране на жп линия
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7 Whipple, Squire
SUBJECT AREA: Civil engineering[br]b. 1804 Hardwick, Massachusetts, USAd. 15 March 1888 Albany, New York, USA[br]American civil engineer, author and inventor.[br]The son of James and Electa Whipple, his father was a farmer and later the owner of a small cotton mil at Hardwick, Massachusetts. In 1817 Squire Whipple moved with his family to Otego County, New York. He helped on the farm and attended the academy at Fairfield, Herkimer County. For a time he taught school pupils, and in 1829 he entered Union College, Schenectady, where he received the degree of AB in 1830; his interest in engineering was probably aroused by the construction of the Erie Canal near his home during his boyhood. He was first employed in a minor capacity in surveys for the Baltimore and Ohio Railroad and for the Erie Canal. In 1836–7 he was resident engineer for a division of the New York and Erie Railroad and was also employed in a number of other railroad and canal surveys, making surveying instruments in the intervals between these appointments; in 1840, he completed a lock for weighing canal boats.Whipple received his first bridge patent on 24 April 1841; this was for a truss of arched upper chord made of cast and wrought iron. Five years later, he devised a trapezoidal truss which was used in the building of many bridges over the succeeding generation. In 1852–3 Whipple used his truss in an iron railroad bridge of 44.5 m (146 ft) span on the Rensselaer and Saratoga Railroad. He also built a number of bridges with lifting spans.Whipple's main contribution to bridge engineering was the publication in 1847 of A Work on Bridge Building. In 1869 he issued a continuation of this treatise, and a fourth edition of both was published in 1883.[br]Principal Honours and DistinctionsHonorary Member, American Society of Civil Engineers.IMcN -
8 Roebling, John Augustus
SUBJECT AREA: Civil engineering[br]b. 12 July 1806 Muhlhausen, Prussiad. 22 July 1869 Brooklyn, New York, USA[br]German/American bridge engineer and builder.[br]The son of Polycarp Roebling, a tobacconist, he studied mathematics at Dr Unger's Pedagogium in Erfurt and went on to the Royal Polytechnic Institute in Berlin, from which he graduated in 1826 with honours in civil engineering. He spent the next three years working for the Prussian government on the construction of roads and bridges. With his brother and a group of friends, he emigrated to the United States, sailing from Bremen on 23 May 1831 and docking in Philadelphia eleven weeks later. They bought 7,000 acres (2,800 hectares) in Butler County, western Pennsylvania, and established a village, at first called Germania but later known as Saxonburg. Roebling gave up trying to establish himself as a farmer and found work for the state of Pennsylvania as Assistant Engineer on the Beaver River canal and others, then surveying a railroad route across the Allegheny Mountains. During his canal work, he noted the failings of the hemp ropes that were in use at that time, and recalled having read of wire ropes in a German journal; he built a rope-walk at his Saxonburg farm, bought a supply of iron wire and trained local labour in the method of wire twisting.At this time, many canals crossed rivers by means of aqueducts. In 1844, the Pennsylvania Canal aqueduct across the Allegheny River was due to be renewed, having become unsafe. Roebling made proposals which were accepted by the canal company: seven wooden spans of 162 ft (49 m) each were supported on either side by a 7 in. (18 cm) diameter cable, Roebling himself having to devise all the machinery required for the erection. He subsequently built four more suspension aqueducts, one of which was converted to a toll bridge and was still in use a century later.In 1849 he moved to Trenton, New Jersey, where he set up a new wire rope plant. In 1851 he started the construction (completed in 1855) of an 821 ft (250 m) long suspension railroad bridge across the Niagara River, 245 ft (75 m) above the rapids; each cable consisted of 3,640 wrought iron wires. A lower deck carried road traffic. He also constructed a bridge across the Ohio River between Cincinnati and Covington, a task which was much protracted due to the Civil War; this bridge was finally completed in 1866.Roebling's crowning achievement was to have been the design and construction of the bridge over the Hudson River between Brooklyn and Staten Island, New York, but he did not live to see its completion. It had a span of 1,595 ft (486 m), designed to bear a load of 18,700 tons (19,000 tonnes) with a headroom of 135 ft (41 m). The work of building had barely started when, at the Brooklyn wharf, a boat crushed Roebling's foot against the timbering and he died of tetanus three weeks later. His son, Washington Augustus Roebling, then took charge of this great work.[br]Further ReadingD.B.Steinman and S.R.Watson, 1941, Bridges and their Builders, New York: Dover Books.D.McCullough, 1982, The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge, New York: Simon \& Schuster.IMcNBiographical history of technology > Roebling, John Augustus
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