Experimental study on bearing capacity of plate anchor in clay under repeated loading

SUN Yifei; WANG Le; ZHANG Tingran; ZHANG Chunhui; TIAN Yinghui

doi:10.11779/CJGE20230359

Volume 47 Issue 3

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Chinese Journal of Geotechnical Engineering > 2025 > 47(3): 659-666. > DOI: 10.11779/CJGE20230359

SUN Yifei, WANG Le, ZHANG Tingran, ZHANG Chunhui, TIAN Yinghui. Experimental study on bearing capacity of plate anchor in clay under repeated loading[J]. Chinese Journal of Geotechnical Engineering, 2025, 47(3): 659-666. DOI: 10.11779/CJGE20230359

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Experimental study on bearing capacity of plate anchor in clay under repeated loading

SUN Yifei^{1, 2,},
WANG Le^{1, 2, ,},
ZHANG Tingran^{1, 2},
ZHANG Chunhui³,
TIAN Yinghui⁴

1.
School of Civil Engineering, Tianjin University, Tianjin 300350, China
2.
State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin 300350, China
3.
School of Civil Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
4.
Department of Infrastructure Engineering, The University of Melbourne, Melbourne 3010, Australia

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Received Date: April 23, 2023
Available Online: October 11, 2024

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Abstract

Abstract

Floating structure is an important structure form in the development of far-reaching Marine resources. The anchor foundation connected with it by anchor chain is the key part to ensure its security and stability in place. Plate anchor is one of the common anchorage foundation forms at present, and it will be subjected to the repeated loading induced by wind, wave and current during its service. At present, the research conclusions on the bearing performance of plate anchors under repeated loading is inconsistent, and the bearing mechanism is not clear, which needs to be further carried out in-depth and systematic research. In this paper, a two-degree-of-freedom servo loading system was used to carry out a reciprocating drawing experiment on a plate anchor in saturated clay, and the influence of the median and amplitude of repeated loading on the bearing performance of plate anchor was studied. The results show that with the increase of median and amplitude of repeated loading, the bearing capacity of plate anchor first increases and then decreases. When the median and amplitude of repeated loading is 28%±18% of the monotonic ultimate pulling capacity, the bearing capacity of plate anchor increases the most, which is 10.44% higher than that of monotonic ultimate pulling capacity. When the repeated loading is 60%±18% of the monotonic ultimate pulling capacity, the soil mass is seriously damaged and the plate anchor loses its bearing capacity. According to the change of bearing capacity of plate anchor after repeated loading, it provides guidance for the safety evaluation of plate anchor during service.
- repeated loading,
- ultimate bearing capacity,
- square plate anchor,
- clay

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References (24)

References

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