L Shape Retaining Walls
L Shape retaining walls are a cantilever type. They are manufactured using pre-cast concrete and deigned to BS EN 1997-1:2004-Eurocode 7 – Geotechnical design with the UK National Annex and BS EN 1992-1 :2004 – Eurocode 2 – Design of concrete structures with the UK National Annex.
Precast concrete L shape walls are designed to retain material. However, to resist overturning and sliding with a factor of safety of 2 for overturning and 1.5 for sliding the wall units need to be anchored into a plain or reinforced foundations.
We highly recommend a structural engineer designs the wall or we can do it for you with our engineers.
The reinforcement cover is 45mm and a C50/60 concrete is used in the manufacture of the wall units. The walls are suitable for the following exposure conditions. XC3/XC4, XD3, XS3, XF4 as detailed in BS8500-1:2006.
L shape retaining walls are an economical solution for many projects. Having said that we can give you a full analysis of the best type of retaining wall from your enquiry.
Contact us and let’s see how we can value engineer your project using the best solution.
Precast L Shape Retaining Walls Design Guide
The design uses well graded, granular backfill with the back of the wall having drainage to relive hydrostatic pressure.
The design table above are Indicative designs for L shape retaining walls based upon a base material with allowable bearing pressure of >200kPa.
All indicative information presented in this table is based upon assumed loading and ground conditions and may be subject to change following detailed, site specific design.
Standard L Shape Units
Standard Modular Units
Standard Bolt Down Units
Compare Prices of Retaining Wall Types
Which retaining wall type is the most economical to build? We have written an article on retaining wall price comparisons. The article details the types of retaining wall and gives you a price of each type for comparison.
L Shape Retaining Walls Design Service
The design of a retaining wall requires knowledge of the retaining material, the water table, the ground bearing capacity and any site constraints. The design requires a ground investigation and a structural engineer to ensure the design is fit for purpose.
We offer a full design service from carrying out the ground investigation to final working drawings.
Other Retaining Wall Types
- King Post Retaining Walls
- Inclined Retaining Walls
- Reinforced Masonry Retaining Walls
- Reinforced Block Retaining Wall
- Gabion Basket Retaining Walls
- Masonry Retaining Walls
- Criblock Retaining Walls
- Flood Defence Retaining Walls
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My background is civil engineering from building a civil engineering construction company from 1990 to 2005. I have practical experience of building a large range of structures.