Excavation Support
Tieback Anchors
Tieback anchors provide stabilization for walls, including slopes, sheet piles, bulkheads, or soldier piles with lagging and walers. These anchors are drilled at an angle between 10-45 degrees from the horizontal, with drill hole diameters typically ranging from 5-10 inches. Tiebacks are created by grouting a reinforcement bar (or strand bundle) into the soil or rock behind the wall's failure surface. After the grout sets, the anchor's capacity is tested, and the load is locked off to prevent wall movement.
Soil Nails & Soil Anchors
Soil nails offer slope stabilization through a series of grouted elements that are drilled or inserted into a slope. To prevent erosion or provide additional stability, the slope face may be covered with wire mesh, erosion control fabric, or shotcrete.
Soldier Piles
Soldier piles play a crucial role in earth retention systems for both temporary and permanent constructions. Installation occurs prior to excavation; following that, the excavation and installation of timber lagging or precast panels are executed, along with any necessary bracing, walers, or tieback anchors.
Shaft Construction
Shafts (Caissons) serve as excavation support systems for temporary applications or can become integral parts of permanent structures. An example is the self-sinking caisson, designed for efficient installation.