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Volume 39 Issue 12
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LI Xiao-lin, WANG Hong-jian, NIU Yong-hong. Strength and failure properties of frozen clay under varying loading rates[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(12): 2335-2340. DOI: 10.11779/CJGE201712024
Citation: LI Xiao-lin, WANG Hong-jian, NIU Yong-hong. Strength and failure properties of frozen clay under varying loading rates[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(12): 2335-2340. DOI: 10.11779/CJGE201712024
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Strength and failure properties of frozen clay under varying loading rates

  • 1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. The First Engineers Scientific Research Institute, Wuxi 214035, China

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  • Received Date: September 17, 2016
  • Published Date: December 24, 2017
    Graphical Abstract
    • Abstract
  • The strength properties of frozen soils under varying loading rates are the important parameters for improving the mechanical excavation methods and equipments. The strength, modulus and failure properties of frozen clay are studied through a series of uniaxial compressive tests conducted on remolded frozen clay samples. From the test results, it is concluded that (1) The compressive strength and the initial yield stress increase with the decreasing temperature and the increasing loading rate, and there exists a good linear relationship between the failure strength and the initial yield stress. (2) The initial yield modulus and the tangent modulus are sensitive to the temperature and loading rates, and there is a logarithmic function relationship between the tangent modulus and the loading rates under different temperatures. (3) The failure strain and damage time decrease with the increase of loading rates under different temperatures. (4) The effects of temperature on the failure strain and damage time are not evident at large loading rates.
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    • References (9)
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