What lies beneath - The importance of ground investigations

Last week we were on site with our Partners FSG Geotechnics and Foundations carrying out ground investigation for a riverbank stabilisation project with Moreton Bay Regional Council.

Whilst on site, we completed three boreholes down to a depth of 5m, which were supported with a number of Dynamic Cone Penetrometer tests. These tests allow us to understand water table level and water flow, soil stratigraphy, ground layer thicknesses, and the mechanical properties of the soil. This information is then used within our detailed designs to understand slope stability, settlement, compaction and lateral forces.

For this waterway site we found a combination of sands and gravels, overlying a layer of high plasticity alluvial clays, which then returned back to more sands and gravels. An interesting mix which is the result of historical gravel extraction from the river.

Here at JBP we recognise the benefits of a comprehensive ground investigation, and appreciate that these can sometimes be overlooked. If you would like more information on how to prepare a scope for ground investigation works to compliment the design process, please get in touch!

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