Retaining wall type

Retaining wall engineering and design

Retaining wall engineering – Watch the video for a quick overview

We pride ourselves on a holistic approach to provide clients with solutions for retaining wall engineering and design.

The majority of retaining walls that fail, fail because they have not been designed by a structural engineer.

Our designing service allows you the freedom to utilise our experience and knowledge to select the best retaining wall solution for your project.

Learn as much as you can about retaining wall design as it will help you to understand the information we require to design your project. The video will give you everything you need to know. We encourage you to then tell us about your project.

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Site investigation

To allow the structural engineer to design the retaining wall for your project, the following information is require:

  • The ground bearing capacity
  • The type of retained material
  • The height of the water table
  • Any loads being applied on top of the wall

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 offer a three step retaining wall process to support you.

Step 1 – Help you select the best retaining wall type for your budget and site conditions. We can help you value engineer your project using our experience and knowledge.

Step2 – Design the retaining wall solution

Step 3 – Schedule the materials and obtain the best prices using our supply chain of reliable manufactures, suppliers and contractors.

Retaining wall engineering and design services on offer

  • Desktop site investigation using customer trial hole, video, images, local geology of the area.
  • Detailed design, calculations and sketch of the wall.
  • Project budget
  • Getting prices using our supply chain.

Retaining wall engineering & design process

Step 1 – Develop the project scope of work – Determine the retaining wall type, length and height of walls and any surcharge loads.

Step 2 – Determine the soil conditions – We need to understand the soil material that is being retained and the soil material the structure is bearing on.

Step 3 – 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.

Step 4 – Check for overturning – The second check is to make sure the wall does not topple over.

Step 5 – Check bearing capacity – We check the ground bearing capacity can take the loads from the structure.

Step 6 – Check for overall stability – We check that the structure is stable and the factor of safety is in accordance with the the design code.

Step 7 – Complete structural design – Once all the checks are made, we then complete the structural design. Write up the report, print out the calculations and draw a section through the retaining wall.

Every project is different, so we can only provide prices from a detailed conversation with you. Site investigation information is crucial to designing a retaining wall.

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    Getting more technical

    Retaining walls are designed to  BS 8002:1994 and Eurocode 7

    BS 8002 and Eurocode 7 are retaining wall codes 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 the 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 summarises 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 got 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 above and we will answer them within 24 hours, if not sooner.

    FAQs about retaining wall engineering and design

    Who can design a retaining wall?

    Retaining walls are designed by structural engineers.

    The designs conform to British standards.

    The key information as structural engineers needs to design a retaining wall is:

    • Length and height of the wall(s)
    • Soil Investigation report
    • Drawing plans or photos
    • Specific loads on the top of the wall
    • Clarity on what the higher ground will be used for
    • The postcode of the project

     

    We can design your retaining wall go to contact us and we will give you a price

    What is the cost of a retaining wall design?

    The cost of a retaining wall engineering and design depends on how many designs are required. For some projects, only one design is required, and others have multiple design requirements.

    As a guide, a single design with all the information at hand is between £750 and £1,000 and then £300 to £500 for each additional design after the first one. Tell us about your project and we can firm up a fee for you.

    The cost includes:

    • Analysis and understanding of the requirement
    • Preparing a detailed report
    • A full set of calculations for each design requirement
    • Section through sketch of the retaining wall
    • Material specifications

     

    To get started compete a form.

    Need some help?

    Whether you are a homeowner with a retaining wall problem or a construction professional looking for a solution, we are here to support you.

    Look around the site and complete a form when you are ready. Alternatively, ask us a question or get a price by clicking on the buttons below.

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