TY - JOUR
T1 - One-step analytical method for required reinforcement stiffness of vertical reinforced soil wall with given factor of safety on backfill soil
AU - Wang, Lei
AU - Wang, Chunhai
AU - Liu, Huabei
AU - Hung, Ching
N1 - Funding Information:
The study was supported by the National Natural Science Foundation of China (Grant No. 51379082). The support is gratefully acknowledged.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/2
Y1 - 2021/2
N2 - The selection of geosynthetic reinforcements in the design of geosynthetic-reinforced soil (GRS) retaining walls has been based on the requirement on the long-term strength. However, the mobilized loads in the reinforcements are related to both the reinforcement stiffness and soil deformation, and the desired factor of safety may not exist in the earth structure if they are not properly considered. Therefore, it is also important to take into account the long-term reinforcement stiffness when designing GRS retaining walls. In this study, a simplistic analytical method is proposed to determine the required reinforcement stiffness with given factor of safety on the backfill soil. The method takes into account soil-reinforcement interaction, nonlinear stress-strain behavior of soil, and soil dilatancy. The reinforcement strains predicted by the proposed method were compared to those analyzed by validated nonlinear Finite Element analyses, and close agreement was obtained.
AB - The selection of geosynthetic reinforcements in the design of geosynthetic-reinforced soil (GRS) retaining walls has been based on the requirement on the long-term strength. However, the mobilized loads in the reinforcements are related to both the reinforcement stiffness and soil deformation, and the desired factor of safety may not exist in the earth structure if they are not properly considered. Therefore, it is also important to take into account the long-term reinforcement stiffness when designing GRS retaining walls. In this study, a simplistic analytical method is proposed to determine the required reinforcement stiffness with given factor of safety on the backfill soil. The method takes into account soil-reinforcement interaction, nonlinear stress-strain behavior of soil, and soil dilatancy. The reinforcement strains predicted by the proposed method were compared to those analyzed by validated nonlinear Finite Element analyses, and close agreement was obtained.
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U2 - 10.1016/j.geotexmem.2020.11.002
DO - 10.1016/j.geotexmem.2020.11.002
M3 - Article
AN - SCOPUS:85097800448
VL - 49
SP - 343
EP - 350
JO - Geotextiles and Geomembranes
JF - Geotextiles and Geomembranes
SN - 0266-1144
IS - 1
ER -