GALVANISED GABION data sheet

ASSEMBLING AND PLACING

GABION FILL
The stone fill materials used for filling the gabion units shall be clean, hard stone with pieces ranging from 4-8 inches on the greatest dimensions. Stone filling shall not exceed 24 inch vertical drop above the gabion basket. All effort shall be made to ensure that the stone fill materials utilized in the design of the structure match the stone fill used in constructing the gabion structure.

NON-RAVELING
The wire mesh is to be fabricated in such a manner as to be non raveling. This is defined as the ability to resist pulling apart of the twists or connection forming the mesh when a single wire strand in a section of mesh is cut.

MESH FORMATION
The double twisted hexagonal wire mesh shall have deformability sufficient to permit minimum of mesh elongation equivalent to 10% of the unstretched length of the mesh test section without reducing the gauge or the tensile strength of the individual wire strands to values less then those for similar wire, one gauge smaller in diameter.

FABRICATION
Double Twisted Hexagonal steel wire mesh Galvanised Gabions. Gabions shall be fabricated in such a manner that the sides, ends, lid and diaphagms can be assembled at the construction site into rectangular baskets of sizes specified and shown in the Figure No. 1. Gabions shall be of single unit construction. The gabion shall be divided by diaphargms of the same mesh and gauge as the body of the gabion, into cells whose length does not exceed the horizonatal width. The gabion shall be furnished with the necessary diaphargms secured in the proper position on the base in such a manner that no additional tying is required at this juncture.

DEFINATION
a.  Gabions are defined as double twisted woven wire mesh box shaped baskets of various
     sized and dimensions
b.  The selvedges of the gabion baskets are the thicker perimeter and edge wire to which the
     wire mesh is secured as to withstand sudden or gradual sterss from any directions.
c.  Reinforcing wires are thicker wire in-corporate into the netting during fabrication.
d.  The diaphragms are internal wire mesh partitions which divide the gabions into cells.
e.  Lacing or tie wire is the wire used to assemble and join the gabion units.
f.  Connecting wires are the internal wire used to prevent the gabions from bulging.

This specification data sheet covers the use of galvanised steel double twisted woven wire mesh gabion baskets filled with stone and use for various applications including but not limited to retaining walls, mechanically stabilized soil retaining structures, stream bank protection, slope paving, outfall structures, weirs, drop structures etc.