Soldier piles and lagging is an earth retention technique that retains soil, using vertical steel piles with horizontal lagging.
- Support excavations
Typically, H-piles are drilled or driven at regular intervals along the planned excavation perimeter. Lagging consisting of wood, steel or precast concrete panels is inserted behind the front pile flanges as the excavation continues. The lagging efficiently resists the load of the retained soil and transfers it to the piles. The walls can be designed as cantilever walls or receive additional lateral support from anchors or bracing.