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Case Study

Department of Defence Headquarters Project

 

  • Client: Leighton Contractors Pty Ltd
  • Location: Bungendore, NSW
  • Project Type: Earthworks - Department of Defence Headquarters Project
  • Duration: 18 weeks
  • Scope of Work
    Hannas Civil Engineering were appointed as the civil engineering contractor, for the Headquarters Joint Operations Command (HQJOC) development contract. The team was responsible for constructing the dry weather site access road, completing the design and construction of the Operations Building piling, and the bulk excavation of the sites for the Operations, Military Support and Facilities Support Buildings.

    Hannas Civil Engineering commenced work on the HQJOC project in December 2006 with the construction of a 2.5km long dry weather site access road from the Kings Highway to the location of the temporary site facilities. The topsoil was stripped and stockpiled, followed by the placing and compaction of road base to produce a suitable site entry to facilitate further works. The access road not only enabled the bulk excavation of the Operations, Military Support and Facilities Support Buildings by Hannas Civil Engineering but also site works undertaken by other contractors.

    Further earthworks were undertaken between December 2007 and January 2008 to provide suitable platforms on which the Operation Building, Military Support Building and Facilities Support Building would be built. The earthworks included the topsoil stripping from areas of excavation and filling and stockpiling for later re-use (Approx. 14,500 m3), Foundation preparation (Approx. 24,000 m2), cut to fill work (Approx. 15,000 m3) and the trimming of sub-grade to a tolerance of 20mm (Approx. 48500 m2). Hannas were also responsible for managing the piling works for the Operations Building in January 2007 and completed the work in only two weeks. While the design requirements were altered several times, increasing the number of piles to 230 with average depth of 5 metres, Hannas Civil Engineering remained responsive to changes and completed the work to program.

    Hannas Civil Engineering has the proven ability to complete work on or ahead of schedule, while maintaining an impeccable safety record. For the HQJOC project, the contracted work was completed within the tight schedule outlined, through alterations to the initial design, which required increasing complexity.
  • Project Contact: Joel Hewitt