Hyperscale data-centre foundations — western Melbourne
184 large-diameter bored piers (1,050 mm and 1,200 mm) across a 38,000 m² data-hall footprint. Tight deflection limits to protect precision server racking; two rigs running in parallel to meet the program.
A hyperscale data centre in Melbourne’s western industrial belt required 184 large-diameter bored piers to support the primary slab and the plant decks carrying cooling equipment. The design tolerance for post-construction differential settlement was 10 mm across any two adjacent rack rows — a limit that is routine in precision manufacturing but rare on a greenfield commercial pad.
We installed 1,050 mm diameter piers in the general slab areas and 1,200 mm piers beneath the three primary plant decks, all founding in dense sandy-gravel layers between 14 and 22 metres below natural surface. Two heavy rotary rigs ran in parallel across the pad, with shared casing and tooling logistics managed from a single site office.
Every pile received the full tier-1 QA pack: real-time torque and crowd records, concrete volume and pressure curves against theoretical, cage drop sheets, and CSL tubes with post-install Cross-Hole Sonic Logging on a statistical sample per AS 2159 Section 7. A subset of piles was instrumented with strain gauges for a static load test programme that validated the design assumption of rock-toe bearing (see our pile load testing guide).
Hyperscale data centres are the new heavy end of commercial piling. Stiffness, not strength, governs the design. VIC PILING has the large-diameter rigs, the instrumented-testing experience and the tier-1 QA culture the sector demands.
Piling tolerance across the whole data-hall footprint came in under 15 mm. That is what made the slab flat, and what made the rack install possible.
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