Tieback

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Tieback may refer to:


A tieback is a structural element installed in soil or rock to transfer applied tensile load into the ground. Typically in the form of a horizontal wire or rod, or a helical anchor, a tieback is commonly used along with other retaining systems to provide additional stability to cantilevered retaining walls. With one end of the tieback secured to the wall, the other end is anchored to a stable structure, such as a concrete deadman which has been driven into the ground or anchored into earth with sufficient resistance. The tieback-deadman structure resists forces that would otherwise cause the wall to lean, as for example, when a seawall is pushed seaward by water trapped on the landward side after a heavy rain.

Brae oilfield

The Brae field is a Scottish oil field. The name comes from a Scots language word for hillside. The Fields are operated by Marathon Oil and are located in UKCS block 16/7a. Three accumulations total about 70 million tonnes of oil liquids and a further 22 cubic kilometres of gas. The main platforms currently produce from underlying reserves, with regular infill drilling to identify and exploit undrained pockets in the Brae stratigraphy. A number of subsea tieback fields in the area produce through facilities on the platforms, extending their viability into the future. Gas is exported to St Fergus, Scotland via the SAGE pipeline system and oil is exported via the Forties system.

Curtain tie-back

A curtain tie-back is a decorative window treatment which accompanies a cloth curtain. Within the field of interior decoration, tie-backs made of fabric are classified as a kind of "soft furnishing" while those made out of wood, metal, or glass are considered "window hardware".

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Slurry wall technique used to build reinforced concrete walls in areas of soft earth close to open water or with a high ground water table

A slurry wall is a civil engineering technique used to build reinforced concrete walls in areas of soft earth close to open water, or with a high groundwater table. This technique is typically used to build diaphragm (water-blocking) walls surrounding tunnels and open cuts, and to lay foundations.

The Bathtub

"The Bathtub" refers to the underground foundation area at the site of the World Trade Center and accompanying buildings in New York City. The term bathtub is something of a misnomer, as the area does not hold any water; rather the purpose of its design is to keep water out. The name is more so used to describe its shape of a deep basin with high walls, like a bathtub.

Geologic hazards

A geologic hazard is one of several types of adverse geologic conditions capable of causing damage or loss of property and life. These hazards consist of sudden phenomena and slow phenomena:

Yaquina Bay Bridge highway bridge in Oregon, USA

The Yaquina Bay Bridge is an arch bridge that spans Yaquina Bay south of Newport, Oregon. It is one of the most recognizable of the U.S. Route 101 bridges designed by Conde McCullough. The Yaquina Bay Bridge is one of eleven major bridges on the Oregon Coast Highway designed by McCullough. It superseded the last ferry crossing on the highway.

The Ted Williams Tunnel is a highway tunnel in Boston, Massachusetts; it is the third in the city to travel under Boston Harbor, with the Sumner Tunnel and the Callahan Tunnel. It carries the final segment of Interstate 90 from South Boston towards its eastern terminus at Route 1A in East Boston, slightly beyond Logan International Airport. The tunnel is named after the former Boston Red Sox baseball player and U.S. Marine air corps veteran Ted Williams.

STABL is a computer program initially developed as a public domain program by engineers at Purdue University. The program is used for slope stability analysis. The windows version of the program allows analysis of unreinforced slopes, slopes with tiebacks, as well as slopes reinforced with nails or geogrids using the Bishop, Janbu simplified, and Spencer methods.

Tern oilfield

The Tern oilfield is an oilfield situated 169 kilometres (105 mi) north east of Lerwick, Shetland Islands, Scotland, in block numbers 210/25a.

A wale is a thick plank of wood fastened to the side of a ship to provide protection from wear.

Single context recording

Single context recording was initially developed by Ed Harris and Patrick Ottaway in 1976, from a suggestion by Lawrence Keene. It was further developed by the Department of Urban Archaeology from where it was then exported, in the mid-1980s by Pete Clarke to the Scottish Urban Archaeological Trust and Nick Pearson to the York Archaeological Trust. It has become a popular system of recording and planning being used in many countries in Europe and in Lebanon, it is especially suited to the complexities of deep, typically urban, archaeology. Each excavated context is given a unique "context number" and is recorded by type on a context sheet and perhaps being drawn on a plan and/or a section. Depending on time constraints and importance contexts may also be photographed, but in this case a grouping of contexts and their associations are the purpose of the photography. Finds from each context are bagged and labelled with their context number and site code for later cross reference work carried out post excavation. The height above sea level of pertinent points on a context, such as the top and bottom of a wall are taken and added to plans sections and context sheets. Heights are recorded with a dumpy level or total station by relation to the site temporary benchmark. Samples of deposits from contexts are sometimes also taken, for later environmental analysis or for scientific dating.

One Lincoln Street skyscraper in Boston, Massachusetts

One Lincoln Street, also known as State Street Financial Center, is a skyscraper in Boston, Massachusetts on the edge of both the Financial District and neighborhood of Chinatown. Completed in 2003, it was built using Boston Redevelopment Authority (BRA) guidelines. Standing at 503 feet tall, One Lincoln Street is the 16th-tallest building in Boston. The skyscraper has a five-level underground garage that provides parking for 900 cars. It contains 1,000,000 square feet of office space. It was designed by TRO Jung Brannen During the topping off ceremony Mayor Thomas M. Menino stated "One Lincoln will be a tremendous addition to the City and will become a signature gateway to the Financial District". The skyscraper is also the headquarters of the State Street Corporation.

The Eastern Trough Area Project, commonly known as ETAP, is a network of nine smaller oil and gas fields in the Central North Sea covering an area up to 35 km in diameter. There are a total of nine different fields, six operated by BP and another three operated by Shell, and together, they are a rich mix of geology, chemistry, technology and equity arrangements.

The Deep Foundations Institute (DFI) is an international membership association of contractor, engineers and suppliers in the field of design and construction of deep foundations and excavations. The organization is classified as a 501(c)(6) non-profit corporation under the United States Internal Revenue Code. DFI was formed in 1976.

Salacgrīva Town in Salacgrīva Municipality, Latvia

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Tracerco is the oil and gas services subsidiary of British chemical company and conglomerate Johnson Matthey.

Gustav Gerster company

The Gustav Gerster GmbH & Co. KG is a family-owned company based in Biberach an der Riß, Germany. It produces curtains, ready made fabrics, curtain tapes, trimmings and technical textiles

Ula oil field

Ula is an offshore oil field located in the southern Norwegian section of North Sea along with Gyda, Tambar and Tambar East fields making up the UGT area, usually attributed to DONG Energy's main areas of exploration and production activity.

Alcatraz Wharf

Alcatraz Wharf is located on the southeast side of Alcatraz Island, in San Francisco Bay, California, US. Classified as building number 33 of the Alcatraz Island National Historic Landmark, its historic name variants were "Alcatraz Dock" and "Alcatraz Pier". It is the main access point to Alcatraz. Another dock on the island's northwest side was only used for rock loading. The wharf contained many of the islands historic buildings, including Building 64, the Bombproof Barracks, Chinatown, Ranger Office, Garage, Dock Tower, Storage Vault, and Firebox #3.

Lancang River Railway Bridge bridge in Peoples Republic of China

The Lancang River Railway Bridge is an arch bridge under construction linking the cities of Baoshan and Dali in western Yunnan Province, China. Once completed, the bridge will be one of the highest in world, sitting 271 m (889 ft) above the Lancang River. The bridge's main span will be 342 m (1,122 ft) making it also one of the longest arch bridges ever built. The bridge is expected to be completed in 2019.