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