Experience the power of secant pile walls, an integral part of Schnabel’s rigid and robust system for combining earth retention and groundwater cut-off capabilities. By drilling alternating primary and secondary overlapping shafts, we construct continuous secant walls. The concrete in the shafts can vary, comprising all low-strength, all high-strength, or a combination of primary and secondary shafts.
Steel piles or reinforcing steel further enhance the structural integrity of the secondary shafts. For specific needs, we construct unreinforced high-strength shafts in self-supporting circular rings, commonly used for access shafts to tunnels. Secant pile walls offer impermeability, controlling groundwater flow into excavations and minimizing drawdown outside. With exceptional stiffness, they are ideal for protecting sensitive structures.
Schnabel’s high torque drill rigs provide a significant advantage, penetrating hard-drilling conditions while casing the drill hole. Our expertise extends to advancing cased holes through various obstacles, including cobbles, boulders, and reinforced concrete. Trust us for cutoff wall construction using innovative secant pile techniques.