Innovative cardboard guide wall installed in downtown Wellington

An environmentally friendly cardboard guide wall has proved successful at BPC’s Taranaki Street Pump Station project in central Wellington.

Project Manager Jasper Snyder says the team is required to shoot piles to a depth of 17m below ground, so a guide wall is needed to provide the interlocked structure.

Polystyrene former blocks would normally be used, but Engineering Services Manager Brendan Attewell came up with the more sustainable alternative of using huge cardboard tubes, traditionally only used for casting above-ground piles.

Jasper thinks this is the first time the Sonoco tubes have been used for guide walls. “They were more challenging to manage than polystyrene, but well worth using,” he says. “The result was excellent, and they’re an environmentally friendly and cost-effective option. I can see us using this method on other projects.”

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