Gabion Box

Gabion Boxes are box shaped gabion containers made of steel wire mesh galvanized or PVC coated steel wire mesh for easy forming of retaining wall and riverbank protection works.

Gabion boxes and mattresses are widely used for river and slope protection, the triple twist hexagonal woven mesh fabric containers offering the simple, efficient, environment friendly and cost effective gabion work solution filled with natural stone.

Box Gabions, Gabions Welded Wire Mesh, Galfan coated (95% Zn/5% Al) , Mesh opening 75mmx75mm

Technical Details and Installation

We supply gabion box with specifications confirm to BS 8002:2015 requirements.

The nominal wire diameter for the mesh fabric is 3.80mm (4.3mm with coating) for the base, front, rear, end, diaphragm panels and lid, all within the tolerances specified in BS EN 10218-2:2012 and shall have a tensile strength that falls within a range of 540-770 N/mm2.Corrosion Resistance.
All wire used in the mesh fabric or accessories shall be Galfan coated (95% Zn/5% Al) in accordance with BS EN 10244-2:2009 (Class A) (minimum 275 g/m2).
An additional nominal thickness is applied of 0.5mm organic polymer powder coating for the mesh fabric and a nominal 0.5mm organic polymer powder coating for the lacing wire. This coating being in accordance with BS EN 10245-1:2011 and BS EN 10245-2:2011.

Gabion Infill Stone

Gabion infill stone used in gabion walls should be hard, angular to Round, durable, and of such quality that it cannot deteriorate or Fragment due to exposure to water or weathering during the design Life of the wall.
Gabion box infill stone should be 150mm nominal size but not less than 100mm and not greater than 200mm. The grading is important to ensure that Voids within the unit are minimized and no settlements can occur. The Infill stone size shall never be less than the mesh opening size.
Gabion infill stone shall be angular and placed flat to minimize voids and provide a dense stable mass. Gabion stone shall be handpicked After placing by machine. Stones to the front shall be selected and Hand placed to provide a neat finish.
The density of the infill used in gabion walls should be assessed According to the gradings and proportion of voids after placing. The Assumption for voids in design has been considered as 30% of the cage Volume. This value shall not be exceeded.

Gabion Box Units
Gabion box cages should be tightly filled with some overfilling to allow for Subsequent settlement.
Gabion units should bear down fully on the gabion below and not Overhang the unit.
Gabion box sizes are unified and are 1.8m maximum length, 1.2m width and Maximum 1.2m in height.

Box Gabions Wire Mesh Materials and Reinforcing Wires
Box Gabions to be welded mesh. Mesh wire size to be as ecommended by the Manufacturer to prevent bulging and deformation under loading. Face Panels shall have larger wire size.
Mesh opening size 75mmx75mm
All gabion panel intersections are to be laced with wire matching the Gabion mesh.
Internal x-bracing wires are to be provided to exposed faces. Wire to Match gabion mesh. Wire to be provided at 1/3 and 2/3 gabion height for 1.2m high gabions and 1/2 height for 0.6m high or less gabions.
Gabions with cages longer than 1.5 m should be fitted with transverse Vertical diaphragm panels at 1 m centres to prevent undue distortion and stone migration. The edges of any diaphragm panels should be fixed to the sides by lacing or clips with 2.2 mm minimum binding wire with Material and protection matching the gabion mesh.
Ultimate strength of wires should be between 540 and 770 n/mm2.
Gabions welded wire mesh should be electrically welded at every Intersection, giving a minimum average weld shear strength of 75% of The minimum ultimate tensile strength of the wire