Commercial and multi-storey projects often sit on difficult ground. We interpret geotechnical investigations, model how the soil and structure work together, and design foundations that keep settlement under control.

What we design

  • CFA piles, bored piers, driven piles and screw piles to AS 2159
  • Raft slabs, combined footings and crane pads
  • Basement retention with soldier pile, contiguous pile and secant pile walls
  • Ground anchors and soil nails
  • Foundations on reactive clays (Class M, H1, H2, E and P) and soft ground

Soil-structure interaction

Settlement under one column changes the forces in the frame above. We model the soil and the structure together, so the foundation and the building are designed for the same movements.

Working from your geotechnical report

Pile design to AS 2159 uses a geotechnical strength reduction factor that depends on how well the site has been investigated and whether piles will be tested. Better information can lead to a more economical design, and we explain those trade-offs before you commit.

Common questions about geotechnical and foundation design

What foundation systems do you design for commercial projects?

CFA piles, bored piers, driven piles and screw piles to AS 2159, raft slabs, and basement retention such as soldier pile, contiguous and secant pile walls with ground anchors.

Do I need a geotechnical report?

For new foundations, almost always. The report tells us how the ground will behave. If you do not have one yet, we tell you what investigation the job needs.

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Talk to us about geotechnical and foundation design

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