Retaining wall – cracks

Cause

Corrosion of reinforcing

Repair

  • replace the retaining wall – ask a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement, contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Inadequate initial design/construction

Repair

  • replace the retaining wall – ask a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement, contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Inadequate foundations – overloading of the soil supporting the wall

Repair

  • replace the retaining wall – ask a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement, contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Pressure from soil/build up of water behind retaining wall due to blocked or no drainage

Repair

  • ensure drainage slots and/or soil drains are clear
  • check that there are no leaking drains above or behind the wall
  • if necessary, consult a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Lack of free-draining material behind wall

Repair

  • remove backfill material; replace with free-draining material - renew soil drain if necessary
  • if necessary, consult a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Wall at the end of its serviceable life

Repair

  • replace the retaining wall – ask a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement, contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Tree roots

Repair

  • remove tree roots, repair wall
  • if necessary, consult a chartered professional (structural) engineer to formulate repair or replacement options. For lateral ground movement contact a chartered professional (geotechnical) engineer to advise on how to remedy

Cause

Overloading from soil/vehicles at the top of the wall

Repair

  • reduce the load at the top of the wall