Behavior of Tire-Geogrid–Reinforced Retaining Wall System under Dynamic Vehicle Load

2020 ◽  
Vol 20 (4) ◽  
pp. 04020017 ◽  
Author(s):  
Lihua Li ◽  
Junchao Yang ◽  
Henglin Xiao ◽  
Lei Zhang ◽  
Zhi Hu ◽  
...  
Keyword(s):  
Retaining Wall ◽  
Vehicle Load ◽  
Reinforced Retaining Wall ◽  
Wall System

scholarly journals Mechanical Behavior of the Reinforced Retaining Wall under Vehicle Load

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Yong Liu ◽  
Zhanyong Yao ◽  
Mingxia Shao ◽  
Hongzhe Liu ◽  
Yulong Zhao
Keyword(s):  
Mechanical Behavior ◽  
Structural Characteristics ◽  
Retaining Wall ◽  
Horizontal Displacement ◽  
Tension Stress ◽  
Soil Pressure ◽  
Maximum Displacement ◽  
Vehicle Load ◽  
Vehicle Position ◽  
Reinforced Retaining Wall

This study primarily aims to explore the mechanical behavior and influence factors of the reinforced retaining wall subject to vehicle loads. Mohr–Coulomb model was adopted to simulate and analyze the structural characteristics of the reinforced retaining wall by the finite element method. Its mechanical behavior was investigated in accordance with relevant theories. The results showed that the vertical and horizontal maximum displacement of the reinforced retaining wall occurs at the wall surface of the retaining wall, the maximum internal soil pressure appears at the middle and lower part of the retaining wall, and the maximum tensile strain of the tension bar acts on the wall rupture surface. As impacted by static vehicle load, the largest settlement is located at the parking position, and the maximum horizontal displacement and wall stability will vary with the vehicle position. Moreover, the closer the vehicle to the reinforcement is, the greater the lateral Earth pressure will be imposed on the upper part of the reinforcement body. With the variation of the vehicle position, the tension stress of the geogrid will vary noticeably.

scholarly journals Load transfer on instrumented prestressed ground anchors in sandy soil

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Alex Micael Dantas de Sousa ◽  
Yuri Daniel Jatobá Costa ◽  
Luiz Augusto da Silva Florêncio ◽  
Carina Maria Lins Costa
Keyword(s):  
Skin Friction ◽  
Sandy Soil ◽  
Load Transfer ◽  
Retaining Wall ◽  
Load Variations ◽  
Bored Pile ◽  
Ground Anchors ◽  
Anchor Testing ◽  
Wall System ◽  
Unbonded Length

abstract: This study evaluates load variations in instrumented prestressed ground anchors installed in a bored pile retaining wall system in sandy soil. Data were collected from instrumentation assembled in the bonded length of three anchors, which were monitored during pullout tests and during different construction phases of the retaining wall system. Instrumentation consisted of electrical resistance strain gauges positioned in five different sections along the bonded length. Skin friction distributions were obtained from the field load measurements. Results showed that the skin friction followed a non-uniform distribution along the anchor bonded length. The mobilized skin friction concentrated more intensely on the bonded length half closest to the unbonded length, while the other half of the bonded length developed very small skin friction. The contribution of the unbonded length skin friction to the overall anchor capacity was significant and this should be accounted for in the interpretation of routine anchor testing results. Displacements applied to the anchor head were sufficient to mobilize the ultimate skin friction on the unbonded length, but not on the bonded length. Performance of loading-unloading stages on the ground anchor intensified the transfer of load from the unbonded length to the bonded length. Long-term monitoring of the anchor after lock-off revealed that the load at the anchor bonded length followed a tendency to reduce with time and was not significantly influenced by the retaining wall construction phases.

Numerical analysis of geocell-reinforced retaining wall failure modes

2018 ◽  
Vol 46 (3) ◽  
pp. 284-296 ◽  
Author(s):  
Fei Song ◽  
Huabei Liu ◽  
Liqiu Ma ◽  
Hongbing Hu
Keyword(s):  
Numerical Analysis ◽  
Failure Modes ◽  
Retaining Wall ◽  
Reinforced Retaining Wall
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