Melbourne Airport – Delta Infill GSE AustStab Awards of Excellence 2014 Negri Contractors VIC...
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Transcript of Melbourne Airport – Delta Infill GSE AustStab Awards of Excellence 2014 Negri Contractors VIC...
Melbourne Airport – Delta Infill GSE
AustStab Awards of Excellence 2014AustStab Awards of Excellence 2014
Negri Contractors VICInnovation or Excellence in Sustainability
Sponsored by
Project Background
Delta Infill GSE (Ground Support Equipment)
Construction of pavement airside at Melbourne Airport adjacent to international terminal
Project duration 6 months and value of 4.5M
Initiative Undertaken
Aurecon design for Delta Infill GSE called for removal of existing materials to be replaced with 200mm Cement Treated crushed rock
Within the contract was allowance for disposal of materials in subgrade
Negri Contractors tendered alternative design incorporating in-situ stabilization
Melbourne Airport Corporation recognised benefits of this proposal without risk to the design, the quality, it improved safety, environmental performance, and awarded the contract to Negri Contractors VIC
Key Points
Quality Control key to success. Review by Aurecon, results confirmed suitability of proposal with laboratory testing undertaken to determine mix design.
Safety of airport operations at all times critical. Stabilisation was suitable for night works when airside traffic is significantly reduced. Utilising existing materials reduced the number of cartage trucks entering airside. Environmental benefits including reduced cartage of raw materials to replace removed materials
Reduction in project schedule. Stabilisation completed in 6 shifts. Alternative 15 shifts plus off-site treatment for unsuitable subgrade. Initial 4 week project delay overcome.
Evidence of Success & Supporting Data Productivity – project duration reduced by 2 weeks Financial – eliminated need for 6% of the project
value as a provisional item Environmental – reuse of potentially contaminated
materials, reduction in raw material use, eliminated 250 truck movements
Safety – minimized airplane interaction, and was completed at night.
Delta Infill GSE – Negri Contractors