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A post in ground construction, also called earthfast [1] or hole-set posts, is a type of construction in which vertical, roof-bearing timbers, called posts, are in direct contact with the ground. They may be placed into excavated postholes , [ 2 ] driven into the ground, or on sills which are set on the ground without a foundation.
In wood construction posts normally land on a sill, but in rare types of buildings the post may continue through to the foundation called an interrupted sill or into the ground called earthfast, post in ground, or posthole construction. A post is also a fundamental element in a fence.
The posts are then placed upright into the ground and concrete is poured to cement them into place. Once they are set, the horizontal rails are affixed to the posts using fasteners, and finally the pickets can be attached to the horizontal rails. By far the most time-consuming part of installing a picket fence is setting the posts.
The posts may be steel tubing, timber, or concrete and may be driven into the ground or set in concrete. End, corner, or gate posts, commonly referred to as "terminal posts", must be set on a concrete footing or otherwise anchored to prevent leaning under the tension of a stretched fence. Posts set between the terminal posts are called "line ...
In areas (such as the British Isles) where treated timber is relatively inexpensive, wooden fence-posts are used and steel ones are unusual for agricultural purposes. In the British Isles steel posts are however often used for fencing into solid rock. In this case a hole is drilled into the rock, and the post is fixed using cement or epoxy. In ...
A red-colored post pounder next to two green steel t-posts. A post pounder, post driver, post rammer, post knocker or fence driver is a tool used for driving fence posts and similar items into land surfaces. It consists of a heavy steel pipe which is closed at one end and has handles welded onto the sides. It is normally used by one person, but ...
Posts or blocks may be set as lawn and garden edging, and can be selected for display of the clam shells. Posts or blocks may be assembled into ornamental retaining walls; The natural thickness of the stone is practical for rustic stone stair steps. Individual posts or pieces may be carved for display of family, school, or sports team names.
Deep cement mixing (DCM) is a geotechnical engineering deep foundation ground improvement technique where a binder material, typically cement, is injected into the ground for ground stabilisation and land reclamation. The technique can also be used for containing contaminants and water cut-off. [1]