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Geotechnical and Geological Engineering

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31-12-2022 | Original Paper

Effects of Heterogeneity and Nonlinearity on Uplift Characteristics of Shallow Horizontal Anchor Plates

Authors: Lianheng Zhao, Xiaogen Gong, Shihong Hu, Yigao Tan, Zhigang Zhao

Published in: Geotechnical and Geological Engineering | Issue 2/2023

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Abstract

Based on the upper bound theorem of limit analysis and variational principle, the uplift resistance of shallow horizontal anchor plates in heterogeneous soil and three-dimensional failure surface of overlying soil are investigated. The results calculated by the theoretical approach are compared with results of the existing solutions and numerical results obtained by software PLAXIS 3D to verify the validity of the variational analysis. Furthermore, the influence of the heterogeneity and nonlinearity on the uplift characteristics of shallow horizontal anchor plates is discussed. The results show that: (i) Increase in the uplift resistance and expansion of failure range are observed with decreasing nonlinear coefficient m and variation coefficient k_t of soil uniaxial tensile strength as well as increasing variation coefficient k_c of soil initial cohesion. (ii) Heterogeneity and nonlinearity jointly determine the shape of failure surface. This study enriches the analytical method of anchor plates and has great significance for stability and safety of anchor plates.

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Title: Effects of Heterogeneity and Nonlinearity on Uplift Characteristics of Shallow Horizontal Anchor Plates
Authors: Lianheng Zhao
Xiaogen Gong
Shihong Hu
Yigao Tan
Zhigang Zhao
Publication date: 31-12-2022
Publisher: Springer International Publishing
Published in: Geotechnical and Geological Engineering / Issue 2/2023
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-022-02357-6

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