Retaining wall bowing, bulging, tilting


Listed under: Section, retaining walls

Cause

Inadequate initial design/construction

Repair

  • replace retaining wall – 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

Inadequate foundations

Repair

  • replace retaining wall – 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 top of wall

Repair

  • reduce the load at the top of 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

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

  • check that there are no leaking drains above or behind the wall
  • 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

Incorrect wall slope

Repair

  • replace retaining wall – 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

For walls with posts, posts not embedded deeply enough

Repair

  • add additional posts or replace the posts with sufficiently deep footings
  • 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

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

Ground in front of retaining wall has been excavated/undermined

Repair

  • 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