Mechanical Behavior of the Reinforced Retaining Wall Subjected to Static Load

Table 2

Design parameters of the retaining wall.

Design category	Design parameters
Load criteria	Auto: over 20; trailer: 120
Safety factor	《Specifications for design of highway reinforced earth engineering》 (JTJ015-91) was adopted
Design parameters of rib	With CPE3020 steel-plastic composite belt; The breaking force ≥ 7.5 kN; The allowable tensile stress [σ] = 110 MPa; The elongation ≤ 2%
Panel	The strength grade of precast concrete is C30; The horizontal spacing of the joints of the reinforcement is Sx = 0.5 m; The vertical spacing of the joints of the reinforcement is Sy = 0.5 m
Filler	Sandy soil (or gravel soil) with unit weight of 19.2 kN/m^3; Internal friction angle of 35°; Sandy soil with the maximum size of 10 cm is adopted; The friction coefficient between the rib and the filler is 0.35; The friction coefficient of base is 0.4
Reinforced foundation	The buried depth of C30 concrete is more than 1.0 m