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Volume 36 Issue 9
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LI Jian, CHEN Shan-xiong, JIANG Ling-fa, XIONG Shu-dan. Experimental study on influence of stress history on dynamic properties of remolded red clay[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1657-1665. DOI: 10.11779/CJGE201409012
Citation: LI Jian, CHEN Shan-xiong, JIANG Ling-fa, XIONG Shu-dan. Experimental study on influence of stress history on dynamic properties of remolded red clay[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1657-1665. DOI: 10.11779/CJGE201409012
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Experimental study on influence of stress history on dynamic properties of remolded red clay

  • State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

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  • Received Date: November 10, 2013
  • Published Date: September 21, 2014
    Graphical Abstract
    • Abstract
  • The dynamic characteristics of soils are important factors affecting the engineering stability. Experimental studies have shown that the stress history has a more significant impact on the static characteristics of the red clay. However, there are few research achievements from the studies on the influence of the stress history on the dynamic properties of the red clay. In order to further reveal the effect of the stress history on the dynamic characteristics of the red clay, a large number of dynamic triaxial tests are performed on the remolded red clay samples with different stress histories. The dynamic stress-strain bone curve and the dynamic modulus variation curve of the remolded red clay under different stress histories are obtained. The influence laws of the stress history on the remolded red clay are analyzed. The test results show that in the range not exceeding the strength of the red clay, improving the soil compactness, confining pressure, consolidation ratio and vibration frequency is beneficial to enhancing the dynamic strength and elastic modulus of the soils. In order to provide basic data and references for the relevant projects, several empirical equations for the dynamic indexes and stress history factors of red clay are established.
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