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These details show solid brickwork retaining wall details at different heights and depths. The capping / coping options shown may not be approved by the brick development association for simple freestanding walls. See DL330 and DL331 for approved options.
Guarding may be required where top of retaining wall is more than 600mm from the lower ground level. Foundation, brick and mortar to be specified by structural engineer.
- Structural Integrity – retaining walls must be designed and constructed to ensure structural stability and resistance to imposed loads, including soil pressure, water pressure, and surcharge loads.
- Foundations – adequate foundations must be provided to support the weight of the retaining wall and resist lateral forces exerted by retained soil.
- Materials – the materials used in retaining wall construction must be suitable for the intended purpose and capable of withstanding environmental conditions, including exposure to moisture, frost, and chemical degradation.
- Drainage – retaining walls must incorporate effective drainage systems to prevent water buildup behind the wall, which can lead to hydrostatic pressure and potential failure. This may include weep holes, drainage pipes, or porous backfill materials.
- Environmental Impact – retaining wall designs should consider potential environmental impacts, such as erosion, sedimentation, and habitat disruption, and incorporate measures to mitigate these effects.
- Accessibility – where retaining walls are located in areas accessible to the public, such as pedestrian walkways or recreational spaces, they must comply with accessibility standards to ensure safe and inclusive use by all individuals.
- Guarding – retaining walls with exposed edges or changes in elevation may require guardrails or barriers to prevent falls and protect users from injury. Guarding requirements are typically specified in building codes and standards and must be carefully integrated into the design of the retaining wall.
- Inspection and Maintenance – regular inspection and maintenance of retaining walls are essential to ensure continued performance and safety over time. Owners and operators should develop inspection and maintenance plans in accordance with industry best practices and manufacturer recommendations.
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