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Tetrapods used to protect a seawall Large interlocked Xblocs (8.0 m 3 or 280 cu ft) in a trial placement. A wave-dissipating concrete block is a naturally or manually interlocking concrete structure designed and employed to minimize the effects of wave action upon shores and shoreline structures, such as quays and jetties.
Wall Footing . A wall footing or strip footing is a continuous strip of concrete that serves to spread the weight of a load-bearing wall across an area of soil. [1] It is a component of a shallow foundation. [1] Wall Footing. Wall footings carrying direct vertical loads might be designed either in plain concrete or in reinforced concrete.
We meet foundation contractor Ken Lewis hard at work digging the front bump-out's footing and learn about the Dig Safe program. (Ken hits an unmarked water pipe.) Then we take a look at the foundation hole for the new addition. A concrete cutter puts a doorway through the old foundation wall to connect with the new cellar.
Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface. Before plywood became common, tongue and groove boards were also used for sheathing buildings and to construct concrete formwork. A strong joint, the tongue and groove joint is widely used for re-entrant angles.
Edge banding machine Strips with hot-melt adhesive. Edge banding or edgebanding is the name of both a process, and an associated narrow strip of material. It is used to create durable and aesthetically pleasing trim edges during finish carpentry.
Comparison of a ha-ha (top) and a regular wall (bottom). Both walls prevent access, but one does not block the view looking outward. A ha-ha (French: hâ-hâ [a a] ⓘ or saut de loup [so dÉ™ lu] ⓘ), also known as a sunk fence, blind fence, ditch and fence, deer wall, or foss, is a recessed landscape design element that creates a vertical barrier (particularly on one side) while preserving ...
A grab dredge. Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.
Fence panels are commonly constructed of either chain link or weld mesh. Temporary fencing in storage on a site in Switzerland . Temporary fencing is an alternative to its permanent counterpart when a fence is required on an interim basis when needed for storage, public safety or security, crowd control , or theft deterrence.