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Site Excavation & Retaining

Terrace-to-structure connection detail showing gabion retaining wall integration
Terrace connection: how the gabion retaining wall integrates with the hillside cut

Key Topics

Section titled “Key Topics”
  • Site selection: south-facing slope, 15–30° angle, stable soil (clay/loam preferred)
  • Excavation dimensions: 3m deep × 5m wide × 6m long cut
  • Cut profile: vertical rear wall, stepped sides for gabion courses
  • Drainage design: geotextile wrap, perforated pipe at base of gabion walls
  • Soil storage: stockpile topsoil for living roof substrate
  • Compaction and grading: level floor, proper drainage fall