LANDSCAPING
GARDEN MAINTENAINCE
POOL SERVICES

Articles of Interest

Design Functions of Retaining Walls

Retaining Walls in Landscaping

  • define boundary - security, privacy
  • stabilize slopes - land degradation, erosion
  • support structures - buildings, table and chairs
  • containment - soil, water etc
  • separation - different areas, level changes
  • increase usable land
  • aesthetics

Design considerations for retaining walls

Site factors - soil type, climate, slope stability, vegetation proximity, access, drainage

Appearance - compatibility with surrounds; function of wall, workmanship, skill, material availability, maintenance

Costs - available funds, material expensive, skilled labour, access, design life of wall

Materials - range of materials, style of construction, aesthetics, cost

Construction methods - type of construction, skilled labour, time limit on job, materials available

Important points

  • water must be drained
  • strong and durable foundation required
  • correct fill behind wall
  • angle of repose of soil
  • wall construction must be strong enough to oppose forces against it
  • approval may be required seek engineering advice if in doubt or when council regulations apply.
  • surcharge angle

Angle of repose in landscape - is the gradient of the slope at which soil settles naturally Surcharge angle - is the angle between the slope of soil behind the wall and the horizontal