Stormwater Channel Wall Repairs – Platipus® Civil Anchors
PCA Ground Engineering
FSA Consulting Engineers
Deception Bay, Queensland
To eliminate the total design, dismantling and replacement of an existing retaining wall, remedial works and stability measure improvements were designed and implemented to a stormwater channel retaining wall at Deception Bay in Queensland.
Platipus S8 anchor systems were detailed at 1.6m centres and load locked to a minimum depth of 2m along the existing retaining wall with a 150mm galvanised steel channel walling. The Platipus anchor systems were tested to an ultimate load of 22.5kN, each system proof loaded to 15kN and with a final small ‘active’ lock off load of 5kN.
Initial 100mm diameter holes were cored through the existing concrete block retaining wall and a total of 190 off Platipus S8 systems were installed and instantly load tested by the contractor over a short working period of 5 days.
The Platipus anchoring systems were chosen and deployed for the following main features & benefits:
- A major driving force for implementing the Platipus solution was its speed and ease of installation
- Overall cost benefits versus the design, demolition and construction of a new retaining structure
- An environmentally sensitive solution adjacent to a water course, no grouting measures necessary