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Volume 41 Issue 6
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CHEN Rong, WANG Xi-qiang, HAO Dong-xue, SONG Yang-yang, XUE Nan. Experimental investigation on reinforced characteristics of geogrids in seasonal frozen soil[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(6): 1101-1107. DOI: 10.11779/CJGE201906014
Citation: CHEN Rong, WANG Xi-qiang, HAO Dong-xue, SONG Yang-yang, XUE Nan. Experimental investigation on reinforced characteristics of geogrids in seasonal frozen soil[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(6): 1101-1107. DOI: 10.11779/CJGE201906014
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Experimental investigation on reinforced characteristics of geogrids in seasonal frozen soil

  • 1. School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China;
    2. Institute of Geotechnical Engineering, Northeast Electric Power University, Jilin 132012, China;
    3. State Grid Changji Electric Power Supply Company, Changji 831100, China;
    4. Zhejiang Electric Transmission & Transformation Co., Ltd., Hangzhou 310020, China;

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  • Received Date: June 10, 2018
  • Published Date: June 24, 2019
    Graphical Abstract
    • Abstract
  • A series of pullout tests to investigate the reinforced characteristics of geogrids in frozen soil are conducted in the laboratory under various moisture contents and different freeze-thaw cycles. Based on the theories about frictional strength, apparent friction coefficient, interface frictional resistance and passive resistance, the test data are analyzed. Some conclusions are drawn that the moisture content can obviously inhibit the effect of reinforcement. The interface frictional resistance and passive resistance both decrease to 40% while the moisture content increases from 20% to 32%. Then the moisture content is constant to 24%, the freeze-thaw cycles can improve the reinforcement effect of geogrids. Mainly for the passive resistance has a certain extent enhancement, but the interface frictional resistance nearly has no change. The experimental results are of referring value for the design of geogrids-reinforced earth structures.
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    • References (11)
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