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New residential housing development, Otahuhu, Auckland, NZ

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Foundations were required for a new residential development for emergency housing in Otahuhu, Auckland.

TTT Deep Pile Foundations being installed for a new swimming pool facility.
Our solution

MultiPole Uglie poles, 2.4 to 4.8m x 250mm, 2500 pieces, were used.

MultiPoles are incredibly versatile timber poles with a unique hollow core.

MultiPole Uglie poles are similar to SED poles but are debarked rather than peeled. They offer greater skin friction when used as piles and are stronger than SED poles.

The unique hollow core of the MultiPole allowed for fast installation via high-frequency vibration – 3 to 5 house foundations were installed daily.

 

Project challenges

The ground conditions were very soft.

The ground was highly contaminated so could not be disturbed.

The project site was busy with many contractors working at the same time.

Installation needed to be rapid.

Unloading and handling needed to be easy.

H5 treated Radiata Pine timber piles were determined as the best solution given the soft ground conditions.

 

TTT Deep Pile Foundations being installed for a new swimming pool facility.
TTT Deep Pile Foundations being installed for a new swimming pool facility.

Poles were larger in diameter than usually required due to the very soft ground conditions.

Gravel was placed over the contaminated ground and the poles were vibrated through the gravel. This ensured the contaminated ground was left in situ, and undisturbed.

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→ NZ Ground Control Limited

Bollard Road

PO Box 99

Tuakau 2342

New Zealand

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