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Screw piles were first described by the Irish civil engineer Alexander Mitchell in a paper in Civil Engineer and Architect's Journal in 1848; however, helical piles had been used for almost a decade by this point. [2] Screw foundations first appeared in the 1800s as pile foundations for lighthouses, [3] and were extensively used for piers in ...
Located along the Rappahannock River bordering the City of Fredericksburg and Stafford County, Spotsylvania County is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Since 2010, the population has increased by 19.3%; for comparison, Virginia's population has only increased 7.7% in that time period.
Single helix earth anchors Guyed mast anchor. An earth anchor is a device designed to support structures, most commonly used in geotechnical and construction applications. Also known as a ground anchor, percussion driven earth anchor or mechanical anchor, it may be impact driven into the ground or run in spirally, depending on its design and intended force-resistance characteristics.
Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...
A screw picket is a metal device which is used to secure objects to the ground. Today, screw pickets are used widely to temporarily "picket" dogs. They are also used to graze animals such as sheep, goats, and horses. Screw pickets are also used to stabilize small trees, tent poles, and other objects that are intended to remain upright.
The Spotsylvania Towne Centre (formerly Spotsylvania Mall) is a mall located in Spotsylvania County, Virginia, on Virginia State Route 3, less than a mile west of Interstate 95, and directly across from the Central Park shopping and dining complex.
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