🔔 🔔 🔔 Secant pile walls are constructed by drilling and overlapping primary (unreinforced) and secondary (reinforced) piles to form a continuous retaining structure. They provide excellent groundwater control and structural stability in deep excavations, particularly for shafts, basements, and tunnel portals. The secondary piles are installed between the primary ones, cutting slightly into them to ensure full contact and minimise permeability. https://tunnel.engineering/courses/detail/tunnel-

Driving steel piles for riverbank protection | Pile Buck Magazine

🌟 New post is out now 🌟 🟩 Unlike the secant piling method, where piles overlap, tangent pile walls are constructed without overlap between piles. The piles are installed either flush against the adjacent pile or with a very small gap between them. Typically, all piles in a tangent wall are reinforced with steel cages or beams. This method can be used for the construction of retaining walls and shafts. We have covered all tunnel and shaft construction techniques in our Online Tunnel Engineerin

Secant or Tangent Piles. Secant or tangent piles are columns constructed adjacent (tangent) or overlapping (secant) each other to form structural walls that resist lateral pressures and groundwater inflow for bulkhead support, earth retention, groundwater control, or slope stability. Credits to @haywardbaker Follow us! @engineeringandarchitecture . . . #soilmechanics #columns #pile #wall #structuralwall #lateralpressure #groundwaterinflow #inflow #waterworks #structuralworks #bulkhead #support #