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Test Studies on Geogrid–Soil Interface Behavior under Static and Dynamic Loads

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  • Jing Jin

    (School of Civil Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
    State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
    Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China)

  • Xiaoyong Liang

    (School of Civil Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
    Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China
    School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang 050043, China)

  • Guangqing Yang

    (State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
    School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China)

  • Yitao Zhou

    (Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China)

Abstract

Pullout tests on geogrids have been regarded as the most direct way to investigate geogrid–soil interaction. In the pullout tests on geogrids, either static or dynamic load is commonly used for applying the vertical loads. In order to investigate the influence of static and dynamic load on pullout test results, pullout tests are carried out to analyze the mechanical response of geogrids and soils under static and dynamic load from the large-scale pullout tester. The results show that frequency and amplitude have significant effects on the pullout test results under the dynamic load. The interface cohesion and friction coefficients under dynamic loads are smaller than those under static loads. The reinforcement effect of geogrids is reduced by dynamic load. Therefore, the strength of geogrids should be reduced when quasi-static analysis is used for reinforced structures. Knockdown factor is recommended for the corresponding reduction. The investigation results of this study may provide scientific references for regulating the design method of reinforced structures.

Suggested Citation

  • Jing Jin & Xiaoyong Liang & Guangqing Yang & Yitao Zhou, 2022. "Test Studies on Geogrid–Soil Interface Behavior under Static and Dynamic Loads," Sustainability, MDPI, vol. 14(7), pages 1-15, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:7:p:4299-:d:787087
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    Cited by:

    1. Haiping Zhang & Siqi Li & Zhuo Chen & Yeshuang Tong & Zhuolun Li & Siqi Wang, 2022. "Fracture Mechanism of Crack-Containing Strata under Combined Static and Harmonic Dynamic Loads Based on Extended Finite Elements," Energies, MDPI, vol. 15(21), pages 1-14, October.

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