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Article

Study on the Calculation Method of Stress in Strong Constraint Zones of the Concrete Structure on the Pile Foundation Based on Eshelby Equivalent Inclusion Theory

1
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
2
Nanjing R&D Tech Group Co., Ltd., Nanjing 210029, China
3
Huai’an Investigation and Design Institute of Water Conservancy, Huai’an 223005, China
4
College of Engineering and Computer Sciences, Marshall University, Huntington, WV 25755, USA
*
Author to whom correspondence should be addressed.
Materials 2020, 13(17), 3815; https://doi.org/10.3390/ma13173815
Received: 16 July 2020 / Revised: 18 August 2020 / Accepted: 26 August 2020 / Published: 29 August 2020
(This article belongs to the Special Issue Mechanical Behavior of Composite Materials)
In view of the strong constraint zones of the concrete structure on the pile foundation, there are some differences between the calculation results of the isotropic equivalent pile foundation by the volume replacement ratio method and the actual engineering. In this paper, referring to the relevant algorithm of rock mass with anchor, the anchor and rock mass are, respectively, compared to pile and surrounding soil foundation. Eshelby equivalent inclusion theory is introduced into the equivalent mechanical model of soil foundation with pile, and a new equivalent pile foundation algorithm considering anisotropic elastic constant is compiled by Fortran. Three kinds of calculation methods are used to calculate the stress field of the concrete structure of the large pump station on the pile foundation during the construction period, and the stress in the strong constraint zones of the concrete structure are mainly analyzed. It is found that the calculation accuracy of Algorithm 3 is the highest, and the calculation results of Algorithm 2 can be modified by the coefficients to achieve the calculation accuracy of Algorithm 3 and the calculation efficiency is actually improved. Finally, the accuracy of the proposed method is verified by the engineering measured data. View Full-Text
Keywords: Eshelby; equivalent inclusion; anisotropy; equivalent pile foundation; concrete stress Eshelby; equivalent inclusion; anisotropy; equivalent pile foundation; concrete stress
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MDPI and ACS Style

Yuan, M.; Zhou, D.; Chen, J.; Hua, X.; Qiang, S. Study on the Calculation Method of Stress in Strong Constraint Zones of the Concrete Structure on the Pile Foundation Based on Eshelby Equivalent Inclusion Theory. Materials 2020, 13, 3815. https://doi.org/10.3390/ma13173815

AMA Style

Yuan M, Zhou D, Chen J, Hua X, Qiang S. Study on the Calculation Method of Stress in Strong Constraint Zones of the Concrete Structure on the Pile Foundation Based on Eshelby Equivalent Inclusion Theory. Materials. 2020; 13(17):3815. https://doi.org/10.3390/ma13173815

Chicago/Turabian Style

Yuan, Min, Dan Zhou, Jian Chen, Xia Hua, and Sheng Qiang. 2020. "Study on the Calculation Method of Stress in Strong Constraint Zones of the Concrete Structure on the Pile Foundation Based on Eshelby Equivalent Inclusion Theory" Materials 13, no. 17: 3815. https://doi.org/10.3390/ma13173815

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