Internal stability of a Gabion Wall - Limit States | Internal Stability of a Gabion | 在线帮助

Internal stability of a Gabion Wall - Limit States

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

1) Check for overturning stability:

where:	M_ovr	-	overturning moment
	M_res	-	resisting moment

2) Check for slip:

where:	N	-	normal force
	φ_d	-	design angle of internal friction of soil
	c_d	-	design cohesion of the soil
	d	-	width of block
	e	-	eccentricity
	γ_s	-	reduction coefficient of sliding resistance
	H	-	shear force
	F_res	-	resisting force (from georeinforcement and mesh overlap)
	µ	-	reduction coefficient

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

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

4) Check for bearing capacityof joint between blocks:

where:	N_d	-	tensile force per one running meter of the upper joint of the bottom block
	N_u	-	strength of the mesh (for input, use the frame "Material")
	Q_tr	-	shear force transmitted by friction and cohesion between the blocks
	γ_t	-	reduction coefficient of friction between the blocks (for input, use the "Wall analysis")
	h		height of the block
	D_total		overall width of meshes loaded in compression T
	D_upp		width of the upper mesh between blocks loaded in tension