Soldier Pile and Lagging

A soldier pile and lagging wall is a very traditional type of excavation shoring consisting of a series of steel H-Piles which are either driven or drilled through the overburden soils into dense underlying soils or bedrock around the perimeter of the excavation. The excavation is systematically carried out in shallow cuts and the exposed overburden soil is supported by installing hardwood timber lagging against it that is custom cut to fit between the flanges of the soldier piles as the excavation progresses.

Depending on the depth of the excavation, the applied loads and the soil conditions, the soldier pile and lagging wall may need to be laterally supported by a single or multiple row of tie-back anchors which are highly stressed to post-tension the system and prevent subsidence or settlement of the retained soil.