Abstract
Glass fiber reinforced plastics geogrid has a wide application in the field of soil reinforcement because of its high strength, good toughness, and resistance to environmental stress, creep resistance and strong stability. In order to get high-powered glass fiber reinforced plastics geogrid and its mechanical characteristics, the properties and physical mechanical index of geogrid have been got through the study of its raw material, production process and important quality index. The analysis and study have been made to the geogrid’s mechanical properties with loading speed, three-axial compression, temperature tensile test and FLAC3D numerical simulation, thus obtain the mechanical parameters of its displacement time curve, breaking strength and elongation at break. Some conclusions can be drawn as follows: (a) Using glass fiber materials, knurling and coated projection process, the fracture strength and corrosion resistance of geogrid are greatly improved and the interlocking bite capability of soil is enhanced. (b) The fracture strength of geogrid is related to temperature and loading rate. When the surrounding rock pressure is fixed, the strength and anti-deformation ability of reinforced soil are significantly enhanced with increasing reinforced layers. (c) The pullout test shows the positive correlation between geogrid displacement and action time. (d) As a new reinforced material, the glass fiber reinforced plastics geogrid is not mature enough in theoretical research and practical experience, so it has become an urgent problem both in theoretical study and practical innovation.
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Funded by National Natural Science Foundation of China(No.41372289), the Shandong Province Higher Educational Science and Technology Program (No.12LH03), the China’s Post-doctoral Science Fund (No.2012M521365) and the SDUST Research Fund
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Wang, Q., Zhang, C., Wen, X. et al. Development and properties of glass fiber reinforced plastics geogrid. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 520–527 (2015). https://doi.org/10.1007/s11595-015-1183-9
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DOI: https://doi.org/10.1007/s11595-015-1183-9