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Suction Excavator
A suction excavator or vacuum excavator is a construction vehicle that removes materials from a hole on land, or removes heavy debris on land. Description Suction excavation is a new solution to traditional excavation problems. Suction excavation utilizes high-powered fans to safely excavate up to 141 feet (43 meters) of depth depending on the configuration. First a small surface area hole of about 10 in (250 mm), this may vary depending on ground conditions, is created. Then the suction excavator hose removes below surface materials. Compressed air is used to fracture the ground in order for the suction excavator to remove the material safely. No manual hand tooling is used in the process. The benefits of suction excavation include eliminating the hazard of underground utility strikes, minimizing traffic disruption, reducing reinstatement costs, and reducing the manpower and equipment needed for each job. There are several different industries that can benefit from s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manhole
A manhole (utility hole, maintenance hole, or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel. Manholes are often used as an access point for an underground public utility, allowing inspection, maintenance, and system upgrades. The majority of underground services have manholes, including water, sewers, telephone, electricity, storm drains, district heating, and gas. Manholes are generally found in urban areas, in streets and occasionally under sidewalks. In rural and undeveloped areas, services such as telephone and electricity are usually carried on utility poles or even pylons rather than underground. In Australia, ''manhole'' also commonly refers to an access hatch used to get access from a room or hallway into the ceiling cavity of a building. These manholes are typically around square. Construction Manhole closings are protected by a grating or manhole cover, a flat plug designed to prevent accidental or unauthorize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Excavator
Excavators are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which use winches and steel ropes to accomplish the movements. Terminology Excavators are also called diggers, JCBs (a proprietary name, in an example of a generic trademark), mechanical shovels, or 360-degree excavators (sometimes abbreviated simply to "360"). Tracked excavators are sometimes called "trackhoes" by analogy to the backhoe. In the UK and Ireland, wheeled excavators are sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Root
In vascular plants, the roots are the organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster. They are most often below the surface of the soil, but roots can also be aerial or aerating, that is, growing up above the ground or especially above water. Function The major functions of roots are absorption of water, plant nutrition and anchoring of the plant body to the ground. Anatomy Root morphology is divided into four zones: the root cap, the apical meristem, the elongation zone, and the hair. The root cap of new roots helps the root penetrate the soil. These root caps are sloughed off as the root goes deeper creating a slimy surface that provides lubrication. The apical meristem behind the root cap produces new root cells that elongate. Then, root hairs form that absorb water and mineral nutrients from the soil. The first root in seed producing plants is the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaiarine
Gaiarine is a ''comune'' (municipality) in the Province of Treviso in the Italian region Veneto, about north of Venice and about northeast of Treviso. Gaiarine borders these municipalities: Brugnera, Codogné, Cordignano, Fontanelle, Godega di Sant'Urbano, Mansuè, Orsago, Portobuffolé, Sacile Sacile (; vec, Sathìl ; Liventina: ; Western Friulian: ) is a town and ''comune'' in the province of Pordenone, in the Friuli Venezia Giulia region of northeastern Italy. It is known as the "Garden of the ''Serenissima''" after the many palace .... Its hamlets are Francenigo, Albina, Campomolino and Calderano. References Cities and towns in Veneto {{Veneto-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydro Excavation
A suction excavator or vacuum excavator is a construction vehicle that removes materials from a hole on land, or removes heavy debris on land. Description Suction excavation is a new solution to traditional excavation problems. Suction excavation utilizes high-powered fans to safely excavate up to 141 feet (43 meters) of depth depending on the configuration. First a small surface area hole of about 10 in (250 mm), this may vary depending on ground conditions, is created. Then the suction excavator hose removes below surface materials. Compressed air is used to fracture the ground in order for the suction excavator to remove the material safely. No manual hand tooling is used in the process. The benefits of suction excavation include eliminating the hazard of underground utility strikes, minimizing traffic disruption, reducing reinstatement costs, and reducing the manpower and equipment needed for each job. There are several different industries that can benefit from suct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inner-city
The term ''inner city'' has been used, especially in the United States, as a euphemism for majority-minority lower-income residential districts that often refer to rundown neighborhoods, in a downtown or city centre area. Sociologists sometimes turn the euphemism into a formal designation by applying the term ''inner city'' to such residential areas, rather than to more geographically central commercial districts. The word "downtown" is also used to describe the inner city or city centre – primarily in North America – by English-speakers to refer to a city's commercial, cultural and often the historical, political and geographic heart, and is often contiguous with its central business district. In British English, the term "city centre" is most often used, "''centre-ville''" in French, ''centro storico'' in Italian, ''Stadtzentrum'' in German or ''shìzhōngxīn'' (市中心) in Chinese. The two terms are used interchangeably in Canada. A few US cities, such as Philadelph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semitrailer
A semi-trailer is a trailer without a front axle. In the United States, the term is also used to refer to the combination of a truck and a semi-trailer; a tractor-trailer. A large proportion of a semi-trailer's weight is supported by a tractor unit, or a detachable front-axle assembly known as a dolly, or the tail of another trailer. The other portion of the semi-trailer's weight is semi-supported (half-supported) by its own wheels, which only support the rear of the semi-trailer. A semi-trailer is normally equipped with landing gear (legs which can be lowered) to support it when it is uncoupled. Many semi-trailers have wheels that are capable of being totally dismounted and are also relocatable (repositionable) to better distribute load to bearing wheel weight factors. Semi-trailers are more popular for transport than full trailers, which have both front and rear axles. Ease of backing is cited as one of the semi's chief advantages. A road tractor coupled to a semi-trailer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. History The development of the stea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ditch Witch
Ditch Witch, a trade name of Charles Machine Works, is an American brand of underground utility construction equipment, which has been in operation since 1949. It is the leading subsidiary of Charles Machine Works, headquartered in Perry, Oklahoma. Charles Machine Works is, since 2019, a subsidiary of Toro Company. Innovation of Ditch Witch machines started in the 1940s when a compact trenching machine was created to replace the pick and shovel for installation of underground residential utility services. The Ditch Witch organization specializes in the design and manufacture of underground construction equipment. The company is a source for trenchers, vibratory plows, horizontal directional drilling systems, drill pipe, downhole tools, vacuum excavation systems, fluid management systems, and mini skid steers. Because of its extensive experience in construction of subterranean structures and systems, CMW and Ditch Witch have been called, "The Underground Authority." Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germersheim
Germersheim () is a town in the German state of Rhineland-Palatinate, of around 20,000 inhabitants. It is also the seat of the Germersheim (district), Germersheim district. The neighboring towns and cities are Speyer, Landau, Philippsburg, Karlsruhe and Wörth am Rhein, Wörth. Coat of arms The coat of arms features a golden crowned eagle on a blue background. The eagle derives from the fact that, at one time the town was ruled directly by the emperor of Germany. History After his invasion of Gallia, Julius Caesar, Gaius Iulius Caesar made the Rhine river the border between the Roman Empire and Germania. Some small areas east of it were later invaded and added to the Roman province of Agri Decumates. As it was attacked more and more it was given up in the second half of the third century and a military camp was founded, named "''Vicus Iulii''" ("''Village of Julius''/''Julius' Village''). It was supported up to the fourth century. The first record of the name "Germersheim" is fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackhammer
A jackhammer (pneumatic drill or demolition hammer in British English) is a pneumatic or electro-mechanical tool that combines a hammer directly with a chisel. It was invented by William Mcreavy, who then sold the patent to Charles Brady King. Hand-held jackhammers are generally powered by compressed air, but some are also powered by electric motors. Larger jackhammers, such as rig-mounted hammers used on construction machinery, are usually hydraulically powered. These tools are typically used to break up rock, pavement, and concrete. A jackhammer operates by driving an ''internal'' hammer up and down. The hammer is first driven down to strike the chisel and then back up to return the hammer to the original position to repeat the cycle. The effectiveness of the jackhammer is dependent on how much force is applied to the tool. It is generally used like a hammer to break the hard surface or rock in construction works and it is not considered under earth moving equipment, along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
