Dr Chau Chak Wing Building
Client: University of Technology, Sydney
The award winning Dr Chau Chak Wing Building is the first building in Australia designed by the world renowned architect Frank Gehry. The building includes teaching, learning and research facilities for the UTS Business School.
The building is located at the site of the former Dairy Farmers building and comprised construction of a twelve storey building over one level of basement car parking requiring excavations to depths of up to approximately 7.5m.
JK Geotechnics completed three stages of geotechnical investigation at the site including numerous deep cored boreholes in order to provide geotechnical detailed design advice, including specific aspects of the shoring system design and control of groundwater. Two key constraints to the development were the presence of an ovoid section brick sewer lining the eastern site boundary and an igneous dyke crossing below the south-western corner of the site.
During construction we attended site full time to witness the drilling of shoring piles through the igneous dyke in order to confirm that the piles achieved the required socket into appropriate quality bedrock.
JK Geotechnics were involved in monitoring shoring system deflections using inclinometers installed into selected shoring piles located on all four site boundaries. Deflections were maintained within acceptable levels
EIS were involved with the Dr Chau Chak Wing site from the initial investigation through to the completion of remediation works. The original investigation identified a number of contamination issues including two old underground storage tanks that had leaked and resulted in soil and groundwater contamination. A secondary issue was an old creek line that ran through the site that was associated with acid sulfate soil. Remediation works at the site were complicated by the presence of a heritage sewer, which could not be disturbed, located along one of the site boundaries.
Remediation works involved removal of the underground storage tanks, excavation of contaminated soil, excavation and treatment of acid sulfate soil, and installation of a network of groundwater monitoring wells around the site. Regular sampling and analysis of the groundwater demonstrated that natural attenuation of the groundwater contamination took place after removal of the on-site contamination sources.