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Soil Reinforcement with Geocells and Vegetation for Ecological Mitigation of Shallow Slope Failure

Author

Listed:
  • Gaofeng Song

    (School of Civil Engineering, North China University of Technology, Beijing 100144, China)

  • Xiaoruan Song

    (School of Civil Engineering, North China University of Technology, Beijing 100144, China)

  • Shiqin He

    (School of Civil Engineering, North China University of Technology, Beijing 100144, China)

  • Dezhong Kong

    (Mining College, Guizhou University, Guiyang 550025, China)

  • Shuai Zhang

    (School of Architecture and Design, Beijing Jiaotong University, Beijing 100044, China)

Abstract

Soil reinforcement using geocells and vegetation is one of the best forms of soil protection for shallow slope failure control. The geocell supports the vegetation growth and the vegetation cover provides protection against the surface erosion. This work proposed a soil treatment method using geocells for supporting the vegetation growth and stabilizing the shallow slope. A step-by-step installation of the geocells in the field and the development of vegetation growth were also described. The authors developed nine physical models that were reinforced with different sized geocell structures (no reinforcement and small and large geocell reinforcement). The models were placed under three rainfall intensities (50, 75, and 100 mm/h). The stability of the slope under the rainfall and the performance of the geocell reinforcement were assessed from the the development of slope failures, the soil erosion and the slope displacement. The results showed that the stability of geocell reinforced slopes were better off than the unsupported slope. The small geocell-reinforced slopes showed less measured soil erosion and also smaller slope displacement. In general, small geocells outperformed large geocells in terms of the erosion control and slope stabilization. The rainfall intensity dramatically increased the soil erosion on slopes. The geocell- and vegetation-treated slope in the field showed good resistance against the surface erosion.

Suggested Citation

  • Gaofeng Song & Xiaoruan Song & Shiqin He & Dezhong Kong & Shuai Zhang, 2022. "Soil Reinforcement with Geocells and Vegetation for Ecological Mitigation of Shallow Slope Failure," Sustainability, MDPI, vol. 14(19), pages 1-12, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:19:p:11911-:d:921154
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    References listed on IDEAS

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    1. Madhu Sudan Acharya, 2020. "Bamboo Crib Wall: A Sustainable Soil Bioengineering Method to Stabilize Slopes in Nepal," Journal of Development Innovations, KarmaQuest International, vol. 4(1), pages 99-118, July.
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    Cited by:

    1. Zheng Zuo & Xiuqiang Hao & Huiqiang Li & Wei Wang & Guangqing Yang & Ying Liu, 2023. "Experimental Investigations on the Tensile Mechanical Behavior of HDPE Geocell Strip," Sustainability, MDPI, vol. 15(10), pages 1-16, May.
    2. Zheng Zuo & Xiuqiang Hao & Huiqiang Li & Wei Wang & Guangqing Yang & Ying Liu, 2023. "Effect of the Slit on the Mechanical Tearing Behavior of High-Density Polyethylene and Polyester Geocell Strips," Sustainability, MDPI, vol. 15(18), pages 1-17, September.

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