KING POST
King Post Walls are a cost effective system of retaining walls, the simple and quick installation comprises augering a hole with either a bored temporary cased system or CFA system, filling it with concrete and installing H steel section.
King posts are isolated steel columns or beams that are installed along the line of the proposed retaining wall typically at centres between 1 and 3m. The space between the posts is filled, over the retained height, using a variety of different solutions but most commonly either precast concrete panels or timber.
CONTIG WALL
Contiguous pile walls are installed using rotary bored or CFA techniques. This type of retaining wall is constructed with spaces between adjacent reinforced concrete piles and is used on a range of engineering or building projects including but not limited to road or rail underpasses, underground shafts/tanks, cut and cover tunnels/portals or basements.
Contiguous piled walls are used in dry and cohesive soils and are often the quickest and more economic method of constructing retaining walls. In certain ground conditions it may be necessary for the design to incorporate temporary props or ground anchors to provide additional lateral support to the wall.
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