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Volume 36 Issue 3
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LIU Zhi-qiang, LIU Jia-kai, WANG Bo, ZHANG Hong-le, LI Xing-fu. Dynamic characteristics of frozen clay by using SHPB tests[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(3): 409-416. DOI: 10.11779/CJGE201403002
Citation: LIU Zhi-qiang, LIU Jia-kai, WANG Bo, ZHANG Hong-le, LI Xing-fu. Dynamic characteristics of frozen clay by using SHPB tests[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(3): 409-416. DOI: 10.11779/CJGE201403002
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Dynamic characteristics of frozen clay by using SHPB tests

  • 1. School of Mechanics and Civil Engineering, China University of Mining and Technology (CUMT), Xuzhou 221116, China; 2. State Key Laboratory for Geomechanics and Deep Underground Engineering, CUMT, Xuzhou 221116, China; 3. CUMT Geotechnical Engineering & New Technology Development Co., Ltd., Xuzhou 221008, China

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  • Received Date: April 07, 2013
  • Published Date: March 19, 2014
    Graphical Abstract
    • Abstract
  • Based on the Split Hopkinson Pressure Bar (SHPB) tests, dynamic characteristics of frozen clay with various low temperatures and water contents at different strain rates are studied. Variations of dynamic parameters and dynamic stress-strain curves of frozen clay are obtained and analyzed. The results of SHPB tests show that the frozen clay exhibits temperature effect and strain rate effect, and that the failure type tends to change from plastic failure to brittle one with the increase of the strain rate or the decrease of the temperature. Under impact load, the frozen clay exhibits three typical dynamic stress-strain curves as the strain rate increases, and the maximum strain of the frozen clay only linearly increases with the strain rate. The increase of strain rate and water content () and the decrease of temperature result in an increase in both the dynamic strength and elastic modulus of the frozen clay considering the effect of a single factor.
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    • References (22)
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