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Continuous flight augering (CFA), also known as auger cast piling, is a technique used in construction to create a concrete deep foundation. Description [ edit ]
In the 19th century, the hand-operated earth auger became a common farm and construction tool in the US, and several inventors submitted patents for them. [ 2 ] [ 3 ] An example is the design of a certain M. Hubby of Maysfield, Texas, consisting of an open hollow cylinder with two blades at the bottom edge.
Study of a man using an auger, from The Seven Sorrows of the Virgin, by Albrecht Dürer, c. 1496.. The classical design has a helical screw blade winding around the bottom end of the shaft.
In some residential construction, the piers are extended above the ground level, and wood beams bearing on the piers are used to support the structure. This type of foundation results in a crawl space underneath the building in which wiring and duct work can be laid during construction or re-modelling. [7]
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Also Abrams' water-cement ratio law. A law which states that the strength of a concrete mix is inversely related to the mass ratio of water to cement. As the water content increases, the strength of the concrete decreases. abrasion The process of scuffing, scratching, wearing down, marring, or rubbing away a substance or substrate. It can be intentionally imposed in a controlled process using ...
Auger bit, a drill bit; Auger conveyor, a device for moving material by means of a rotating helical flighting; Auger (platform), the world's first tension leg oil rig; see Big, Bigger, Biggest
A geological survey is the systematic investigation of the geology beneath a given piece of ground for the purpose of creating a geological map or model.Geological surveying employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing ...