Development and Properties of Glass Fiber Reinforced Plastics Geogrid
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2015年第3期
论文作者：王清标 ZHANG Cong WEN Xiaokang Lü Rongshan
文章页码：520 - 527
摘 要：Glass fiber reinforced plastics geogrid has a wide application in the fi eld 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 fi ber 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 FLAC3 Dnumerical 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 fi ber 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 fi ber 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.
王清标1,2,3,4，ZHANG Cong2，WEN Xiaokang2，Lü Rongshan2
1. Department of Resource and Civil Engineering ,Shandong University of Science and Technology2. College of Civil Engineering and Architecture, Shandong University of Science and Technology3. Shandong Hualian Mining CO., Ltd
摘 要：Glass fiber reinforced plastics geogrid has a wide application in the fi eld 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 fi ber 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 FLAC3 Dnumerical 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 fi ber 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 fi ber 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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