Helical piles (also called helical piers or screw piles) enhance structural stability by transferring structural loads to deeper, more stable soil layers using helical bearing plates that screw into the ground. They are especially effective in poor or unstable surface soils where traditional shallow foundations might fail.

How Helical Piles Enhance Structural Stability

  1. Deep Load Transfer:
    Helical piles bypass weak upper soil layers and anchor into deeper, more competent soils, providing a stable base for the structure.
  2. Axial and Lateral Load Resistance:
    They resist both compression and tension forces, making them suitable for structures subject to uplift forces (e.g., wind or seismic activity).
  3. Immediate Load-Bearing Capacity:
    Once installed, helical piles can support loads immediately—there’s no need for curing like with concrete.
  4. Minimal Soil Disturbance:
    Their screw-in installation minimizes displacement and vibration, reducing the risk of soil settlement and damage to nearby structures.
  5. Corrosion Resistance Options:
    Helical piles can be galvanized or coated to improve durability in corrosive environments.