Dec. 23, 2022
A welded gabion is a cubic container of welded wire mesh panels connected by tether wires and locking pins. They can be extended to any length by snapping two spiral wires together at vertical angles and inserting locking pins. If multiple layers of welded gabions are required, you can add layers.
Welded gabions are found in an increasing number of civil engineering projects, such as river training walls, flood control, erosion control, and temporary wall systems. In addition, more and more views are introduced for gabion baskets because of their special and different appearance.
A thick wire gauge ensures a sturdy structure.
Corrosion-resistant wires for all weather.
Modular construction makes installation quick and easy.
Cost-effective equipment for retaining walls and soil erosion.
Recyclable and environmentally friendly.
Decorative elements for common views.
Outstanding flexibility and permeability.
CDM regulations state that retaining walls should start 500 mm below ground level. This is done to facilitate future excavations (see Standard Design for a more detailed explanation) and to get below the 450 mm frost layer. This will also produce an effective toe. The gabions must be on a solid base and all potentially decaying organic material needs to be removed. A best practice is to use a vibratory plate compactor to compact 100-200 mm type 1. 100 mm for 1 m high walls and 200 mm for 3 m high walls. The compacted hardcore can be considered as part of the basket and therefore part of the front beam. Usually, this produces a front beam of 300 mm. The standard design is robust and it is not uncommon to install gabions in the ground for shorter walls. In the absence of a soil report or structural calculations, a degree of common sense should be taken on-site regarding soil conditions, risk, and appearance.
The surface of the gabion wall may be flush or stepped. On higher walls, it may be beneficial to set the basket back to balance the pressure between the heel and toe of the wall. Gabions can be cut on-site to the nearest full square to achieve your desired size. Or we can cut them for you at an additional charge.
Health and safety considerations are paramount when undertaking such works to ensure that they are carried out with due regard for the health and safety of all concerned. In this regard, the requirements of the Construction (Design and Management) Regulations 2015 (7.2) are referred to below as the CDM Regulations. Application.
Many injuries and fatalities have occurred in construction work associated with excavation works. These occurred where vertical or near-vertical excavation surfaces were provided and were unsupported or not effectively supported, or where temporary unsupported excavation slopes or face paste were provided that were too steep to remain stable. The effects of other factors that may contribute to instability should also be taken into consideration. These factors include but are not limited to, water ingress, material storage, and vehicle traffic.
The use of temporary bracing with earth retaining wall construction on the excavation face is often impractical due to the work restrictions that exist.
Temporary unsupported excavation slopes or face paste are typically used and have a slope of 45 degrees, although this is dependent on on-site conditions. This situation is the basis for calculating a standard design where the gap behind the wall is filled with angled material.
Please ensure that all operators/installers are wearing the correct PPP, including safety glasses, safety gloves, steel-clad toe boots, helmets, and Hi-Viz tops.
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