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Gabion Wall 

GEO5

Geotechnical software

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Internal stability of gabion wall – limit states

Reduced parameters of the gabion material, which depend on the coefficients set in the "Settings" frame, are used in the verification analysis.

a) Check for overturning stability:

where: Movr - overturning moment
Mres - resisting moment

b) Check for slip:

where: N - normal force acting on the upper joint of the bottom block
φd - design angle of internal friction of the bottom block material
B - width of upper block
cd - design cohesion of the bottom block material
Q - shear force

c) Check for bearing capacity with respect to the lateral pressure:

where: T - average value of pressure acting on the face of bottom block
S - force per one running meter of the joint
Su - joint bearing capacity (for input use the "Material" frame)
b - width = 1m
h - height of the block
Dcelk - overall width of meshes loaded in compression T

d) Check for bearing capacity of joint between blocks:

where: Nd - tensile force per one running meter of the upper joint of the bottom block
Nu - strength of mesh (for input use the frame "Material")
Qtr - shear force transmitted by friction and cohesion between blocks
kt - coefficient of reduction of friction between blocks (for input use the frame "Settings" – default value is 0,66)
h height of the block
Dcelk overall width of meshes loaded in compression T
Dhor width of upper mesh between blocks loaded in tension

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