CGC provided the detailed design of the abutment reinforced soil structure retaining walls for the construction of the Tinana interchange overpass over the Bruce Highway in South East Queensland.
BRUCE HIGHWAY - TINANA INTERCHANGE
The $38 million upgrade of the Tinana Interchange section of the Bruce Highway involved realignment of realignment of the off ramps, additional lanes, the demolition and re-construction of a new overpass bridge.
CGC provided the detailed design of the 130m abutment reinforced soil structure retaining walls for the construction of a new overpass over the Bruce Highway. The geotechnical design included sliding, bearing and overturning analysis of the retaining walls, global slip analysis and settlement analysis.
Challenges included a variable backslope profile and the bridge abutment not perpendicular to the wall, requiring the development of detailed geotechnical models.
