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Gabion
A gabion (from Italian ''gabbione'' meaning "big cage"; from Italian ''gabbia'' and Latin ''cavea'' meaning "cage") is a cage, cylinder or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping. For erosion control, caged riprap is used. For dams or in foundation construction, cylindrical metal structures are used. In a military context, earth- or sand-filled gabions are used to protect sappers, infantry, and artillerymen from enemy fire. Leonardo da Vinci designed a type of gabion called a ''Corbeille Leonard'' ("Leonard basket") for the foundations of the San Marco Castle in Milan. Civil engineering The most common civil engineering use of gabions was refined and patented by Gaetano Maccaferri in the late 19th century in Sacerno, Emilia Romagna and used to stabilize shorelines, stream banks or slopes against erosion. Other uses include retaining walls, noise barriers, temporary fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabion 040
A gabion (from Italian language, Italian ''gabbione'' meaning "big cage"; from Italian ''gabbia'' and Latin ''cavea'' meaning "cage") is a Cage (enclosure), cage, cylinder (geometry), cylinder or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping. For erosion control, caged riprap is used. For dams or in foundation construction, cylindrical metal structures are used. In a military context, earth- or sand-filled gabions are used to protect sappers, infantry, and artillerymen from enemy fire. Leonardo da Vinci designed a type of gabion called a ''Corbeille Leonard'' ("Leonard[o] basket") for the foundations of the San Marco, Castellabate, San Marco Castle in Milan. Civil engineering The most common civil engineering use of gabions was refined and patented by Gaetano Maccaferri in the late 19th century in Sacerno, Emilia Romagna and used to stabilize shorelines, stream banks or slopes a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retaining Wall
Retaining walls are relatively rigid walls used for supporting soil laterally so that it can be retained at different levels on the two sides. Retaining walls are structures designed to restrain soil to a slope that it would not naturally keep to (typically a steep, near-vertical or vertical slope). They are used to bound soils between two different elevations often in areas of inconveniently steep terrain in areas where the landscape needs to be shaped severely and engineered for more specific purposes like hillside farming or roadway overpasses. A retaining wall that retains soil on the backside and water on the frontside is called a seawall or a bulkhead. Definition A retaining wall is designed to hold in place a mass of earth or the like, such as the edge of a terrace or excavation. The structure is constructed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil. A basement wall is thus one k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riprap
Riprap (in North American English), also known as rip rap, rip-rap, shot rock, rock armour (in British English) or rubble, is human-placed rock or other material used to protect shoreline structures against scour and water, wave, or ice erosion. Riprap is used to armor shorelines, streambeds, bridge abutments, foundational infrastructure supports and other shoreline structures against erosion. Common rock types used include granite and modular concrete blocks. Rubble from building and paving demolition is sometimes used, as well as specifically designed structures called ''tetrapods'' or similar concrete blocks. Riprap is also used underwater to cap immersed tubes sunken on the seabed to be joined into an undersea tunnel. Environmental effects Sediment effects Riprap causes morphological changes in the riverbeds they surround. One such change is the reduction of sediment settlement in the river channel, which can lead to scouring of the river bed as well as coarser sedime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Wall
A floodwall is a freestanding, permanent, engineered structure designed to prevent encroachment of floodwaters. Floodwalls are mainly used on locations where space is scarce, such as cities or where building levees or dikes (dykes) would interfere with other interests, such as existing buildings, historical architecture or commercial use of embankments. Floodwalls are nowadays mainly constructed from pre-fabricated concrete elements. Floodwalls often have coupures, which are large openings to provide passage of traffic except during periods of flooding, when they are closed. As a floodwalls mostly consist of relatively short elements compared to dikes, the connections between the elements are critical to prevent the failure of the floodwall. The substantial costs of floodwalls can be justified by the value of commercial property thus protected from damage caused by flooding. Floodwalls are sometimes bad for ecosystems. Floodwalls are almost always built in cities. See als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cage (enclosure)
A cage is an enclosure often made of mesh, bars, or wires, used to confine, contain or protect something or someone. A cage can serve many purposes, including keeping an animal or person in captivity, capturing an animal or person, and displaying an animal at a zoo. Construction Since a cage is usually intended to hold living beings, at least some part of its structure must be such as to allow for the entry of light and air. Thus some cages may be made with bars spaced closely together for the intended captive to slip between them, or with windows covered by a mesh of some sort. Animal cages Cages often used to confine animals, and some are specially designed to fit a certain species of animal. One or more birds, rodents, reptiles, and even larger animals of certain breeds are sometimes confined in a cage as pets. Animal cages have been a part of human culture since ancient times. For example, an Ancient Greek vase dated to 490 B.C. depicts a boy holding a possibly do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maccaferri
Officine Maccaferri S.p.A. is an Italian multinational company, headquartered in Zola Predosa, Bologna. The company specialises in products for the construction industry. Maccaferri's products are used for: retaining structures, soil reinforcement, embankment stabilisation, river and canal hydraulic works, coastal protection, erosion control, rockfall mitigation, debris flows and avalanche protection. The company provides technical support to designers, contractors and end-users. Maccaferri has 70 subsidiaries, 30 production facilities and 3,300 employees. History The company name can be traced back to the 16th century (the name Maccaferri is a literal translation of ‘he who strikes iron’), when Giovanni (Johannes) "Maccaferri" was registered with the blacksmiths guild. However, to join the guild a person had to be 20 years old. As Johannes was only 14 at the time, the Bologna Senate granted a dispensation and approved his membership on 28 June 1550. Over 300 years late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery
Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons were developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannon, and in contemporary usage, usually refers to Shell (projectile), shell-firing Field gun, guns, howitzers, and Mortar (weapon), mortars (collectively called ''barrel artillery'', ''cannon artil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominus Estate
Dominus Estate, is a California wine estate producing Bordeaux style blends, owned by Christian Moueix. The winery is located in Yountville within the Napa Valley AVA. History George C. Yount, the founder of Yountville, planted in 1836 the first vines of the valley on the location of Napanook vineyard. In 1850 the property was bought by Charles Hopper, and owners since include Hugh La Rue, a pioneer in the use of rootstock and John Daniel Jr., the owner of Inglenook Winery who bought the estate in 1946. Following Daniel's death in 1970, Napanook passed to his daughters Robin Lail and Marcia Smith who in 1982 began a partnership with Christian Moueix, acting on a recommendation by Robert Mondavi to establish production in Napa Valley. Daniel Baron became general manager of Dominus in the 1980s. Moueix, also in charge of production at Château Pétrus and president of Établissements Jean-Pierre Moueix, became the sole owner of Dominus Estate when Lail and Smith sold their sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batter (walls)
In architecture, batter is a receding slope of a wall, structure, or earthwork. A wall sloping in the opposite direction is said to ''overhang''. When used in fortifications it may be called a talus. The term is used with buildings and non-building structures to identify when a wall or element is intentionally built with an inward slope. A battered corner is an architectural feature using batters. A batter is sometimes used in foundations, retaining walls, dry stone walls, dams, lighthouses, and fortifications. Other terms that may be used to describe battered walls are "tapered" and "flared". Typically in a battered wall, the taper provides a wide base to carry the weight of the wall above, with the top gradually resulting in the thinnest part as to ease the weight of wall below. The ''batter angle'' is typically described as a ratio of the offset and height or a degree angle that is dependent on the building materials and application. For example, typical dry-stone const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyvinyl Chloride
Polyvinyl chloride (alternatively: poly(vinyl chloride), colloquial: vinyl or polyvinyl; abbreviated: PVC) is the world's third-most widely produced synthetic polymer of plastic (after polyethylene and polypropylene). About 40 million tons of PVC are produced each year. PVC comes in rigid (sometimes abbreviated as RPVC) and flexible forms. Rigid PVC is used in construction for pipes, doors and windows. It is also used in making plastic bottles, packaging, and bank or membership cards. Adding plasticizers makes PVC softer and more flexible. It is used in plumbing, electrical cable insulation, flooring, signage, phonograph records, inflatable products, and in rubber substitutes. With cotton or linen, it is used in the production of canvas. Polyvinyl chloride is a white, brittle solid. It is soluble in ketones, chlorinated solvents, dimethylformamide, THF and DMAc. Discovery PVC was synthesized in 1872 by German chemist Eugen Baumann after extended investigation and experimenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napa County, California
Napa County () is a County (United States), county north of San Pablo Bay located in the Northern California, northern portion of the U.S. state of California. As of the 2020 United States census, the population was 138,019. The county seat is the Napa, California, City of Napa. Napa County was one of the original counties of California, created in 1850 at the time of statehood. Parts of the county's territory were given to Lake County, California, Lake County in 1861. Napa County comprises the Napa, CA Metropolitan Statistical Area, which is also included in the San Jose, California, San Jose-San Francisco-Oakland, California, Oakland, CA San Jose-San Francisco-Oakland, CA Combined Statistical Area, Combined Statistical Area. It is one of four North Bay (San Francisco Bay Area), North Bay counties. Napa County, once the producer of many different crops, is known today for its Napa Valley AVA, regional wine industry, rising to the first rank of wine regions with France by loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
