GDB-1 / Technical data sheet

GDB-1 spec sheet

Technical data for the GDB-1 telescopic rapid-deployment barrier, single unit: dimensions, design load case and anchorage factors of safety. Document GDB-TDS-001, Rev A, October 2026.

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GDB-1 technical data sheet: side elevation, isometric view, design load case and anchorage factor of safety table
GDB-1 technical data sheet — click to open the PDF

Key figures

Overall height917.35 mm
Base depth1216 mm
Apron (toe) length258 mm
Water-face sweepR300
Design retained height800 mm
Heat resistanceUp to 500 °C
Flow tested9–12 m³/s

Anchorage and factor of safety

Factors of safety for a unit retaining 800 mm of water or fill, by toe-anchor fixing.

FixingLengthWaterFill
Type I450 mm2.01.5
Type II900 mm*3.02.0
  • Factors of safety are based on an 800 mm retained height of water or fill, and improve where the depth of water or debris is lower.
  • * Type II anchors extend beyond 600 mm below ground. Locate in-ground services before fixing.
  • All dimensions in millimetres. Do not scale from the sheet. Structural assessment by Seitech Ltd, Auckland.
  • Full design information is available on request.
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