This gymnasium floor is uneven and continues to shift.

Our structural engineer found that the building sits on compressible Brisbane River alluvial soils, which are gradually and constantly subsiding. Flood events and saturated soils further exacerbate this subsidence.

After a thorough investigation, our RPEQ structural engineer recommended 𝗦𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗮𝗹 𝗨𝗿𝗲𝘁𝗵𝗮𝗻𝗲 𝗥𝗲𝘀𝗶𝗻 𝗴𝗿𝗼𝘂𝗻𝗱 𝘀𝘁𝗮𝗯𝗶𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 to restore an even floor surface.

Several companies offer urethane resin solutions for slab settlement and footing subsidence.

𝗧𝗵𝗶𝘀 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗰𝗮𝗻 𝗯𝗲 𝗮𝗺𝗮𝘇𝗶𝗻𝗴𝗹𝘆 𝗲𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲, 𝗼𝗿 𝗶𝘁 𝗰𝗮𝗻 𝗱𝗼 𝗮𝗯𝘀𝗼𝗹𝘂𝘁𝗲𝗹𝘆 𝗻𝗼𝘁𝗵𝗶𝗻𝗴. Success depends on the construction type, ground conditions, and—most importantly—the experience of the company performing the work.

If you are considering resin injection underpinning, we advise you to get an independent engineer’s report first.

Expert RPEQ Structural Engineer Reports: Forensic Engineers