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Deformation State Analysis and Design Method of Bottom-Confined Gravity Retaining Walls

Author

Listed:
  • Yuntao Zhou

    (Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China)

  • Shengwei Shi

    (Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China)

  • Qiang Cai

    (Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China)

  • Jiong Liang

    (Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China)

Abstract

The deformation failure modes of gravity retaining walls include overturning, toppling, deep sliding, and eccentric failure. The complex eccentric failure mode, which involves the multi-stage deformation of retaining walls, suffers from a lack of mechanical models and design theories. Based on the basic theory of reinforced concrete construction, this study established a deformation calculation model of bottom-confined reinforced concrete gravity retaining walls (RC-GRWs), which are composed of tensile, compressive, and rigid zones. Then, this study defined RC-GRWs’ normal-operation, cracking, yield, and ultimate limit states, as well as the displacement of RC-GRWs in these states, according to the concrete cracking and steel reinforcement yield conditions. Accordingly, this study proposed a design method and process to determine the deformation of bottom-confined RC-GRWs. A project case shows that the calculation method for RC-GRW deformation proposed in this study can effectively assess the deformation state of in-service retaining walls and that optimized cracked retaining walls can meet the deformation-based design requirements.

Suggested Citation

  • Yuntao Zhou & Shengwei Shi & Qiang Cai & Jiong Liang, 2023. "Deformation State Analysis and Design Method of Bottom-Confined Gravity Retaining Walls," Sustainability, MDPI, vol. 15(5), pages 1-14, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4405-:d:1084800
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