Small diameter drilling is used to transfer loads to competent strata to control settlement and provide structural support under challenging ground conditions.

Common Uses

  • Provide structural support to facilitate construction in limited headroom or access areas for facility upgrades with minimal disruption to the facility
  • Underpin foundations to remediate settlement or increase load carrying capacity.
  • Seismic retrofitting of existing structures to mitigate liquefaction (load transfer from quantifiable soils to competent strata)
  • Enhance mass stability of slopes by “stitching” the soil together within the predicted shear zones

Typical Techniques