What is Pre-cast Concrete Crib-Retaining Walls ?
Introduction of Precast concrete crib retaining wall
- Designed on the principle of mass retaining walls
- A system of pre cast concrete or treated timber components comprising headers and stretchers which interlock to form a 3 dimensional framework or crib of pre cast concrete timber units within which soil is retained
- Constructed with a face batter between 1:6 and 1:8
- Subsoil drainage is not required since the open face provides adequate drainage.
Concrete crib walls are gravity retaining walls, constructed from interlocking, precast, concrete components. They are filled with free draining material and earth backfill to eliminate the hazards of hydrostatic pressure building up behind the wall.
Crib walls are low cost, of open web construction, and can be quickly and inexpensively erected. They can be used almost anywhere a retaining wall is needed – including driveways, building sites, and garden areas.
Advantages of Precast concrete crib retaining wall
Ease of construction
Concrete crib walls do not require skilled labour and are easily and quickly erected. Components can easily be handled by two people, and there are no costly foundations involved.
Stability, strength and safety
The open web construction and use of free draining material eliminates two common causes of failure in retaining walls — namely build up of hydrostatic pressure and the destructive pressure of tree root systems. The high quality precast concrete components provide for long-term durability and will not rot or warp.
Low cost
Our crib walls are specifically designed to allow speed and ease of construction for minimum cost and require little or no maintenance. The standard, quality components allow for the most economical solutions for various wall heights.
Aesthetics
A Crib wall can be planted with flowers, shrubs, or creepers, using the spaces in the face of the wall. This allows the wall to blend in with any existing or proposed environment.
Adaptability
Crib walls are incredibly flexible and can easily be constructed to follow gentle curves, slopes, and undulating terrain. They are also easily laid around corners.What’s more, the ability to dismantle and re-erect components quickly and easily as required means our walls may form temporary or permanent structures as the need dictates.
Where construction must be carried out in stages — due to finance, weather or other factors — our walls are ideal as there is no permanent connection between components, allowing sections of wall to be continued when and where required.
Design
Our concrete crib walls are designed as gravity retaining walls, using a system of four header sizes. Combinations of header sizes can be used for different wall heights. Walls up to 20m in height can be catered for with these systems.
