CROWN INFINITY

Sydney, NSW

Diaphragm Wall, Anchors

Project Description
The Infinity Project at Green Square will be a 20 floor reinforced concrete building, with 18 floors dedicated for residential and 2 floors for commercial purposes. The building will have a 3 level basement constructed by the use of the Diaphragm Wall technique, to achieve the permanent, watertight retaining structure for the basement. The wall is an 800mm thick reinforced concrete wall up to 15m deep. The wall is supported by one row of anchors during excavation phase. The North West corner is buttressed instead of anchors to avoid clashing with the railway tunnel directly underneath that section of site.
Solutions

The works were carried out with the use of two excavation cranes to support the Grab and Hydrofraise and one service crane for the cage installation. The purpose of the grab was to excavate the other than rock material. Once the rock layer was reached the Hydrofraise excavated to the design toe. In the North West corner, deep Barrettes were installed to support the outer wall during excavation phase which will be demolished once the basement slabs are installed.

Apartments

Crown Group Construction

Bachy Soletanche Australia

Date

Client

Industry

Engineer

October 2015 - August 2016

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Bachy Soletanche

Bachy Soletanche Australia provides high quality, efficient, and cost-effective foundation solutions to the building and engineering industries. We help clients develop scehemes and achieve cost efficiencies. Techniques offered include Large Diameter Piling, Contiguouys and Secant Piled Walls, Diaphragm Walls, CFA Piling, Rotary Displacement Piling, Grouting, and Ground Anchors.

Head Office
Level 5, 13-15 Lyonpark Road, Macquarie Park NSW 2113
T +61 2 9814 2990

© 2019 Bachy Soletanche Australia. Part of the Soletanche Freyssinet Group

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