Retaining Wall Engineering and Design
We pride ourselves on a holistic approach to provide clients with solutions for retaining wall engineering and design.
Our designing service allows you the freedom to utilise our experience and knowledge to select the best retaining wall solution for your project. We can advise on suitability, and the most cost effective solution.
We encourage you to supply us with your project’s details to develop swift and feasible designs to suit your needs.
To allow the structural engineer to design the retaining wall for your project, the information we require is:
- The ground bearing capacity
- The type of retained material
- The height of the water table
If you have not done so, please watch the video above as it explains the design process and more about the information we need to carry out the design. We can offer you the full service for the design and build of your project.
Design Services on Offer
- Full site investigation – Drilling boreholes and borehole logs with a full site investigation report.
- Desktop site investigation using customer trial hole, video, images, local geology of the area.
- Quick wall design for costing.
- Detailed design with calculations.
- Detailed design with calculations and drawing sections
- Detailed design, with calculations, site survey and detailed drawing for lengths, heights, and sections.
- Quantity surveying.
- Detailed project cost analysis.
- Tender management.
Retaining Wall Engineering & Design Process
Develop the project scope of work – Determine the retaining wall type, length and height of walls and any surcharge loads.
Determine the soil conditions – We need to understand the soil material that is being retained and the soil material the structure is bearing on.
Check for sliding – We will design the wall and carry out several checks to ensure it works. The first check is to make sure the wall does not slide.
Check for overturning – The second check is to make sure the wall does not topple over.
Check bearing capacity – We check the ground bearing capacity can take the loads from the structure.
Check for overall stability – We check that the structure is stable and the factor of safety.
Complete structural design – Once all the checks are made, we then complete the structural design.
Every project is different, so we can only provide prices from a detailed conversation with you. Site investigation information is crucial to design a retaining wall.
Getting More Technical
Retaining walls are designed to BS 8002:1994
BS 8002 is a retaining wall code of practice for structural engineers to use. The code of practice is the design and construction of structures to retain soils and materials with similar engineering properties, at slopes steeper than those which they would naturally assume.
The code of practice provides guidance for a designer, conversant with theoretical and applied soil mechanics and experienced in structural design and construction.
Specialist advice should be sought with regard to the design and construction of larger structures and for those where movement of the retained soils requires close control.
The code is divided into four sections.
Section 1 explains the terms used in the document and summarizes the factors influencing the choice of a retaining wall.
Section 2 describes the site and geotechnical data that is required together with material properties. It gives guidance on the determination of the values of representative soil strength necessary for design purposes.
Section 3 identifies the design philosophy and the design methods for earth retaining structures, including the determination of earth pressures and the analysis of overall stable equilibrium. It defines design soil strength and considers the loads on retaining walls and the forces available to attain equilibrium with tolerable displacements. Guidance is given on methods of simple, practical design and on the influence of ground conditions.
Section 4 considers in detail various individual types of structure and application of earth pressure theory, together with matters of construction and maintenance.
Don’t worry we can take care of all the technical design work for you. If you have go this far without watching the video, we recommend that you do, as it will explain the design process in more detail.
If you have any questions, complete the form below and we will answer then within 24 hours, if not sooner.