5,208 articles
Greenwich foot tunnel
The Greenwich foot tunnel, also known as Greenwich tunnel, is a pedestrian tunnel under the River Thames linking Greenwich with Millwall, opened in 1902 and free to use.
Grenfell Tower
Grenfell Tower was a 24-storey public housing block in North Kensington, west London, where a fire on 14 June 2017 killed 72 people, spread by combustible cladding fitted during a 2012 to 2016 refurbishment.
Grey Gardens (estate)
Grey Gardens is a Shingle Style summer house in East Hampton, New York, known as the decaying home of the Beales and the 1975 Maysles documentary.
Greystone Mansion
Greystone Mansion, also known as the Doheny Estate, is a 55-room English Revival mansion in Beverly Hills, completed in 1928 and now a public park.
Greywater
Greywater is household wastewater that excludes toilet discharge, typically from baths, showers, and washing machines. It makes up 50–80% of household wastewater and is often recycled for irrigation.
Grimshaw Architects
Grimshaw Architects is an international architecture practice founded in London in 1980 by Sir Nicholas Grimshaw, known for high-tech, structurally expressive buildings such as the Waterloo International Terminal and the Eden Project.
Gripper TBM
A gripper TBM is an open hard-rock tunnel boring machine that advances by bracing gripper pads against the tunnel walls, so the rock carries its thrust.
Grishneshwar Temple
Grishneshwar Temple, also written Ghrishneshwar, is a Hindu temple of Shiva at Verul in Maharashtra, India, the twelfth and last of the twelve Jyotirlingas, about a kilometer from the Ellora Caves.
Groma
The groma was an ancient surveying instrument used above all by Roman land surveyors to set out straight lines and right angles for farmland, towns, roads, and military camps.
Grote Kerk, Haarlem
Grote of St.-Bavokerk (Grote Kerk), Haarlem's late Gothic cross-basilica on the Grote Markt: 78 m wooden crossing tower, 45 m Brick Gothic choir, 1738 Müller organ played by Handel and Mozart, 400 gravestones including Frans Hals.
Ground freezing
Ground freezing (artificial ground freezing, AGF) is a geotechnical construction method that circulates refrigerant through drilled pipes, freezing pore water into a temporary ice-soil mass that strengthens ground and cuts off water.
Ground granulated blast-furnace slag
Ground granulated blast-furnace slag, also called GGBS or slag cement, is a finely ground byproduct of iron production in a blast furnace used to replace Portland cement in concrete.
Ground motion prediction equation
A ground motion prediction equation, also called a ground motion model or attenuation relationship, is an empirical equation predicting ground shaking from earthquake magnitude and distance.
Ground response analysis
Ground response analysis is a geotechnical earthquake engineering method that models how layered soil modifies seismic ground motion, producing surface response spectra and amplification factors for seismic design.
Ground–structure interaction in tunnelling
Ground–structure interaction in tunnelling is the study of how tunnelling-induced ground movements affect adjacent buildings, bridges, and existing tunnels, and how structure stiffness modifies those movements.
Grout
Grout, also called tile grout, is a fluid, typically cementitious construction material poured into joints, cavities, or porous ground to fill space, bond elements, or block water.
Grout curtain
A grout curtain is a thin zone in a dam's foundation into which grout is injected through lines of boreholes to reduce seepage and uplift pressure.
Groyne
A groyne, called a groin in American usage, is a low structure of stone or timber built perpendicular to the shore to trap sand and reduce beach erosion.
GS1-128
GS1-128, formerly UCC/EAN-128, is a barcode symbology standard defined by GS1 that encodes Application Identifier data and is mandatory on GS1 logistic labels for cases and pallets.
Gstaad Palace
Gstaad Palace is a five-star superior grand hotel on the Oberbort hill above Gstaad in the Swiss Alps, opened in 1913 and owned by the Scherz family since 1938.
Guangji Bridge (广济桥) (Chaozhou)
Guangji Bridge, also known as Xiangzi Bridge, is a historic bridge across the Han River at Chaozhou, Guangdong, begun in 1171, known for its movable pontoon of 18 boats.
Guangzhou International Finance Center
Guangzhou International Finance Center, also known as Guangzhou IFC or the West Tower (广州西塔), is a 438.6-meter mixed-use skyscraper in Guangzhou, China, completed in 2010 and designed by WilkinsonEyre.
Guaranteed maximum price
A guaranteed maximum price (GMP) is a construction contract where the owner pays actual costs plus a fee, capped at a ceiling, with overruns borne by the contractor.
Guaranty Building
The Guaranty Building, also known as the Prudential Building, is a 13-story steel-framed skyscraper in Buffalo, New York, designed by Adler and Sullivan and completed in 1896.
Guardian Building
The Guardian Building is a 40-story Art Deco skyscraper at 500 Griswold Street in downtown Detroit, built in 1929, a National Historic Landmark nicknamed the Cathedral of Finance.
Guddu Barrage
Guddu Barrage is a barrage on the Indus River in northern Sindh, Pakistan, commissioned in 1962 to provide controlled irrigation water to upper Sindh and adjacent Balochistan.
Guédelon Castle
Guédelon Castle (Château de Guédelon) is a fortified castle under construction since 1997 near Treigny in Burgundy, France, built from scratch using only 13th-century tools, techniques, and materials as an experimental archaeology project.
Gummadiduru Mound
Gummadiduru Mound (Gummadidurru) is a centrally protected Buddhist site in Nandigama taluk, Krishna/NTR district, Andhra Pradesh, with a 55-ft stupa excavated in 1926, inscriptions from the 2nd century CE, and medieval clay tablets.
Gunston Hall
Gunston Hall is the Virginia plantation house of statesman George Mason IV on the Potomac River, built 1754 to 1759 and famed for William Buckland's interior woodwork.
Guo Shoujing
Guo Shoujing (1231–1316) was a Yuan-dynasty engineer and astronomer from Xingtai, Hebei, whose 82 km Tonghui Canal, completed in 1293, brought grain barges into Beijing.