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  2. Earth anchor - Wikipedia

    en.wikipedia.org/wiki/Earth_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.

  3. Tree stand - Wikipedia

    en.wikipedia.org/wiki/Tree_stand

    Tree stands or deer stands are open or enclosed platforms used by hunters. The platforms are secured to trees in order to elevate the hunter and give them a better vantage point. A tripod stand is a similar device, but because it is freestanding rather than attached to a tree, it is not technically a tree stand.

  4. Guyed mast - Wikipedia

    en.wikipedia.org/wiki/Guyed_mast

    A partially guyed tower is a tower structure which consists of a free-standing base, in most cases of concrete or of lattice steel, with a guyed mast on the top. The anchor base of the guyed mast can be on the top of the tower or on the ground.

  5. Dead-end tower - Wikipedia

    en.wikipedia.org/wiki/Dead-end_tower

    Termination tower (overhead line to underground cable) Future termination tower of a 110 kV-line while joins are installed. A special kind of a dead-end tower is a termination pylon, also called a terminal tower. It is used when the overhead power line terminates, and is connected to substation equipment, or transitions to underground cable.

  6. Anchor (climbing) - Wikipedia

    en.wikipedia.org/wiki/Anchor_(climbing)

    In rock climbing, an anchor can be any device or method for attaching a climber, rope, or load to a climbing surface—typically rock, ice, steep dirt, or a building—either permanently or temporarily. The intention of an anchor is case-specific but is usually for fall protection, primarily fall arrest and fall restraint.

  7. Radio masts and towers - Wikipedia

    en.wikipedia.org/wiki/Radio_masts_and_towers

    The terms "mast" and "tower" are often used interchangeably. However, in structural engineering terms, a tower is a self-supporting or cantilevered structure, while a mast is held up by stays or guy-wires. [1] A mast is a guyed mast, a thin structure without the shear strength to stand unsupported, that uses attached guy lines for stability ...

  8. Anchor portal - Wikipedia

    en.wikipedia.org/wiki/Anchor_portal

    An anchor portal or H-frame tower is a gantry structure supporting overhead power lines in a switchyard. Their static function is similar to a dead-end tower . Anchor portals are almost always steel -tube or steel-framework constructions.

  9. Guy-wire - Wikipedia

    en.wikipedia.org/wiki/Guy-wire

    One end of the guy is attached to the structure, and the other is anchored to the ground at some distance from the mast or tower base. The tension in the diagonal guy-wire, combined with the compression and buckling strength of the structure, allows the structure to withstand lateral loads such as wind or the weight of cantilevered structures.