King Post Wall installed for New Primary School
Day 1 of the Aarsleff Advent and Aarsleff Ground Engineering are on site in Halifax, installing 100 lm of King Post Retaining Wall for the construction of the new Copley Primary School. Specifically, Aarsleff are installing a king post wall with pre-stressed, reinforced concrete interlocking panels, with a maximum retained height of 4.0m.
The 254x254x132 steel king posts have been installed using the radio-controlled Aarsleff “Baby” Mait rig capable of drilling 600mm diameter holes in cohesive soils to maximum 15mtrs depth.
King Post Walls are constructed from soldier piles (usually made of steel sections, e.g. double T-beams which are driven, vibrated or mounted in a previously drilled hole filled with concrete) and laggings (usually wooden or precast concrete panels) installed between the piles during excavation. King Post Walls are effective for excavation protection, provided that:
- Ground water level is located closer to the bottom of excavation, and
- In close proximity there are no facilities prone to settlement.
Upon being used as temporary excavation protection, the elements of a King Post Wall may be partially recovered (driven or vibrated steel piles) and partially permanent (drilled piles and timber lagging).
For more information on our Retaining Structures and Geotechnical solutions, please get in touch – firstname.lastname@example.org