Motukea Export Wharf

The Motukea Export Wharf required temporary works to support construction of a cellular steel sheet pile gravity structure. The works centred on the safe and controlled installation of 23m long flat steel sheet piles forming 20m diameter cells.

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Temporary Works Solution

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The piling frame was designed to support sheet pile installation and maintain control during pitching and driving. Sheet piles were pitched and the cell was closed before pile driving commenced.

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Key Design Elements

• Piling frame to support 23m long flat steel sheet piles
• 20m diameter cellular sheet pile structure
• Two-ring frame supported on six piles
• Adjustable ring levels to allow personnel access during pile pitching
• Lowering of the rings as the piles were driven
• Removal of the frame from inside the completed cell during backfilling

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Key Success Factors

• Innovative temporary works design
• Close coordination with site personnel
• Practical construction methodology for cellular sheet pile installation
• Specialist temporary works capability for marine infrastructure delivery