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A basement wall is thus one kind of retaining wall; however, the term usually refers to a cantilever retaining wall, which is a freestanding structure without lateral support at its top. [2] These are cantilevered from a footing and rise above the grade on one side to retain a higher level grade on the opposite side.
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 ...
Typically in the form of a horizontal wire or rod, or a helical anchor, a tieback is commonly used along with other retaining systems (e.g. soldier piles, sheet piles, secant and tangent walls) to provide additional stability to cantilevered retaining walls. [1]
[2] A gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire. Gabion walls are usually battered (angled back towards the slope), or stepped back with the slope, rather than stacked vertically. The life expectancy of gabions depends on the lifespan of the wire, not on the contents of the basket.
The sanctuary walls are 2 feet (0.61 m) thick and are built of concrete blocks. Hollow spaces within the walls function as ventilation ducts. The roof support columns embedded in the sanctuary walls are made of poured concrete, as is the roof and the outer walls of the corridor around the sanctuary.
The enclosure measures 4.6 by 2.5 metres (15.1 by 8.2 ft). It is an approximately 2.5-metre (8 ft 2 in) high structure with concrete blockwork base walls and tubular steel posts supporting upper level metal mesh and a super-6 corrugated asbestos cement skillion roof. Flat asbestos cement sheeting is located on the west wall.