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Model Test Studies on Slope Supported by Bamboo Anchor and Timber Frame Beam

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Abstract

In the process of slope protection, it takes some time for the root system of plants to grow. Before the plant root system forms a developed root system, its reinforcement function cannot be exerted, and the stability of the slope cannot be effectively guaranteed. Aiming at the deficiency of plant slope protection technology, a new structural form of combined support of living stumps and bamboo anchors is put forward in this paper. Two groups of slope model tests with or without bamboo anchor and timber frame beam support are established. Through experiments, the variation law of axial force and bending of bamboo anchor under the condition of bamboo anchor and timber frame beam support is summarized, and the influence of the bamboo anchor and timber frame beam support on slope displacement and slope deformation is compared and analyzed. The relevant conclusions are summarized as follows: (1) The bamboo anchor in the slope is a kind of "tension–compression–bending composite member" with tension as the main function. Under the load on the top of the slope, the axial force and bending moment of the anchor on the top of the slope are significantly greater than that of anchors in the middle and toe of the slope. (2) Compared with the slope without bamboo anchor and timber frame beam support, the displacement of the slope with bamboo anchor and timber frame beam support is smaller, which has obvious supporting effect on the middle of slope. (3) The settlement depth on the top of the slope with bamboo anchor and timber frame beam support is less than that of the slope without bamboo anchor and timber frame beam support, and the slope has no obvious sliding phenomenon. Bamboo anchor and timber frame beam structure can also restrain the deformation of the slope to a certain extent.

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Acknowledgements

Thanks to Jiang Xueliang, Yang Hui and Fan Wenchen for their guidance on this model test. Thanks to the National Natural Science Foundation of China [Grant number.31971727], the science and technology innovation Program of Hunan Province [Grant number.2022NK2056], the Forest Science and Technology Innovation Program of Hunan Province [Grant number. XLK202105-3], the Special Fund of Safety Production Prevention and Emergency Response of Hunan Province in 2019 and 2021 [Grant Numbers. 201901, 2021-QYC-10008-24956], the Key Scientific Research Project of Hunan Provincial Department of Education (Grant number. 18A162), and Open Fund of Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety of Ministry of Education (NO.KFJ190401).

Funding

This work was supported by the National Natural Science Foundation of China [Grant number.31971727], the science and technology innovation Program of Hunan Province [Grant number.2022NK2056], the Forest Science and Technology Innovation Program of Hunan Province [Grant number. XLK202105-3], the Special Fund of Safety Production Prevention and Emergency Response of Hunan Province in 2019 and 2021 [Grant Numbers. 201901, 2021-QYC-10008–24956], the Key Scientific Research Project of Hunan Provincial Department of Education (Grant number. 18A162), and Open Fund of Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety of Ministry of Education (NO.KFJ190401).

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Authors and Affiliations

  1. Civil Engineering College, Central South University of Forestry and Technology, Changsha, 410004, China

    Xueliang Jiang, Yonghui Qian, Hui Yang, Wenchen Fan, Yingbo Zhu, Wenjie Liu & Jiahui Guo

  2. School of Economics, Central South University of Forestry and Technology, Changsha, 410004, China

    Ziqiong Xiao

  3. Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety of Ministry of Education, Changsha University of Science & Technology, Changsha, 410114, Hunan, China

    Wenchen Fan

Authors
  1. Xueliang Jiang
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  2. Yonghui Qian
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  3. Hui Yang
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  4. Ziqiong Xiao
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  5. Wenchen Fan
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  6. Yingbo Zhu
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  7. Wenjie Liu
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  8. Jiahui Guo
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Contributions

Xueliang Jiang, Hui Yang, and Wenchen Fan proposed experimental ideas and suggested the drafting of the manuscript. Yonghui Qian, Ziqiong Xiao, Yingbo Zhu, Wenjie Liu, and Jiahui Guo participated in model tests, recorded test data, and wrote manuscripts.

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Correspondence to Yonghui Qian.

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The authors declare that they have no conflict of interest with this work.We declare that there are no commercial or associative interests that represent a conflict of interest in connection with the work submitted.

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The test model of this article is designed by the author. The data used in the manuscript are all obtained by experiments with authenticity and validity.

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Jiang, X., Qian, Y., Yang, H. et al. Model Test Studies on Slope Supported by Bamboo Anchor and Timber Frame Beam. Geotech Geol Eng 40, 4327–4344 (2022). https://doi.org/10.1007/s10706-022-02157-y

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