Engineering > Retaining Walls

Raison Foster Associates offer a high quality service founded on over 40 years experience in geotechnical and foundation engineering. The Company can provide a full design service in addition to practical advice and independent checking for large projects.

The Company can assist Clients at tender stage and subsequent construction design. Solutions involving more than one geotechnical system or alternative solutions can be provided. Construction specifications and CAD drawings can form part of the package.

The Company uses fully licensed state-of-the-art software to provide a professional service to its Clients.

Services provided for Retaining Walls include:

  • A full design service covering a range of retaining wall systems, including embedded pile walls (secant piles, contiguous piles or sheet piles), diaphragm walls, gravity structures, reinforced concrete cantilever, gabion structures, crib walls, soil nail walls and reinforced soil.

  • Design for embedded pile walls covers stability and deflection analysis using state-of-the-art software.

  • Design to Eurocodes BS EN 1997, BS 8002, CIRIA C760 and legacy codes CIRIA C580, CIRIA 104 and BD 42/00.

  • Design of steel sheet piling.

  • Full structural design and analysis of the reinforced concrete pile section to Eurocode BS EN 1992 or if necessary to legacy codes BS 8110, BS 5400 and BD 42/00.

  • Capping and waling beam design, including provision of reinforcement drawings

  • Design of ground anchorages to Eurocode BS EN 1997, BS EN 1537 and BS 8081

  • Design of reinforced earth, geogrid structures and soil nails to BS 8006

  • Advice on retaining wall options at tender and detailed design stage.

Software Resources

  • Software resources include Oasys software FREW, XDISP and SLOPE, LimitState GEO and Geocentrix ReActiv.

  • Finite element analysis available using the Oasys SAFE software.