Slurry mix wall (for noise restrictions/obstructions) grab excavation to full depth, fill with cement or bentonite mix, drop and hold sheet piles in place.
Excavation 1 panel (4.5 m long on plan) with grab and crane.
Excavate 1 panel in 2 days + 1 day bentonite and sheet pile, giving a rate of 1 - 1.5 m/day.
Therefore, once started 2 - 2.25 m/day is expected.
Slurry Mix Walls
Task / DescriptionSlow Ave Fast Units Crane grab, cement/bentonite and sheet piles1.8 2.5 3.4 m/day