Pullout Behavior of the L-Shaped Anchorage of Geogrid Under Static and Cyclic Loading

Maleki, Ahmad; Nayeri, A.; Lajevardi, Seyed Hamid; Briançon, Laurent; Saba, Hamidreza

doi:10.1007/s11204-022-09808-5

Cited by 1 publication

(1 citation statement)

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“…In addition, there are some scholars who have studied the influence pull-out load has on interactions with a reinforced soil interface [17][18][19]. For example, the interaction between the geogrid and the soil can be analyzed by pull-out tests [20][21][22][23][24], and the mechanisms of pull-out limit state and anchorage zones can be studied with a large pull-out facility [25,26]. Abdi [27] analyzed the size, distribution and displacement of particles at the interface of reinforcement and soil by pull-out test.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Geogrid Flexible Reinforced Soil Wall Subjected to Dynamic Load

Lin,

Liu,

et al. 2024

Buildings

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The geogrid flexible reinforced soil wall is widely used in engineering practice. However, a more comprehensive understanding of the dynamic behavior of reinforced soil wall is still required for a more reasonable application. In order to explore the mechanical behavior of a geogrid flexible reinforced soil wall, the model test was carried out to investigate the dynamic deformation of geogrid reinforced soil wall subjected to a repeated load. The numerical simulation was also conducted for comparison and extension with regards to the earth pressure and the reinforcement strain. The change rules for the deformation of the wall face, the vertical earth pressure and the reinforcement strain subjected to dynamic load with four frequencies (4, 6, 8 and 10 Hz) and four amplitudes (30–60, 40–80, 50–100 and 60–120 kPa) were obtained. The factors that affect the mechanical behavior of geogrid flexible reinforced soil wall were analyzed. The results show that the dynamic deformation characteristics of reinforced soil wall are affected by the number of vibrations, the amplitude of dynamic load and the frequency of vibration. The maximum lateral displacement of the reinforced soil wall occurs on the third to the fifth layer. With an increase in dynamic load amplitude, the development of dynamic deformation gradually increases, and after a cumulative vibration of 200 × 104 times, the cumulative lateral deformation ratio and the cumulative vertical deformation ratio of the wall face is less than 1%. The vertical earth pressure of geogrid flexible reinforced soil wall increases partially along the length of the reinforcement, and the vertical earth pressure of the third layer is basically unchanged when subjected to a dynamic load. With an increase in vibration number, the change in the reinforcement strain of the third layer is more complex, and the change rules of the reinforcement strain of each layer are different. The reinforcement strain is small, with a maximum value of 0.1%.

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