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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 knee wall is a short wall, typically under three feet (one metre) in height, used to support the rafters in timber roof construction. In his book A Visual Dictionary of Architecture , Francis D. K. Ching defines a knee wall as "a short wall supporting rafters at some intermediate position along their length."
The walls must resist the lateral pressures generated by loose soils or, in some cases, water pressures. [3] Every retaining wall supports a "wedge" of soil. The wedge is defined as the soil which extends beyond the failure plane of the soil type present at the wall site, and can be calculated once the soil friction angle is known. As the ...
As a result, grass- and turf-covered houses were developed. Later on, the Swiss chalet style became a prevailing influence in Icelandic architecture as many timber buildings were constructed in this way. Stone and later concrete were popular building materials, the latter especially with the arrival of functionalism in the country.
The earlier mode of building which involved digging the ground and placing grass on top to cover gradually developed into earthen walls supporting roofs, then to wooden poles and beams. The earliest transcript of this type of dwelling was written during the Three Kingdoms period, where it was stated that Kim Suro (57 BCE-4CE), the first King of ...
The foundation stones are ideally set into the ground so as to rest firmly on the subsoil. The rows are composed of large flattish stones, diminishing in size as the wall rises. Smaller stones may be used as chocks in areas where the natural stone shape is more rounded.
The 80th anniversary of the Battle of the Bulge reminds us that appeasing tyrants never works. The U.S. must continue to stand strong against tyrants like Vladimir Putin to keep America safe.
Elements often found at these sites include dry stone walls, rock piles (sometimes referred to as cairns), stone chambers, unusually-shaped boulders, split boulders with stones inserted in the split, and boulders propped up off the ground with smaller rocks.