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Volume 36 Issue 6
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ZENG Ling-ling, ZENG Jun, CHEN Fu-quan, HONG Zhen-shun, BIAN Xia. Undrained shear strength behaviour of natural sedimentary structural clay[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(6): 1072-1078. DOI: 10.11779/CJGE201406012
Citation: ZENG Ling-ling, ZENG Jun, CHEN Fu-quan, HONG Zhen-shun, BIAN Xia. Undrained shear strength behaviour of natural sedimentary structural clay[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(6): 1072-1078. DOI: 10.11779/CJGE201406012
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Undrained shear strength behaviour of natural sedimentary structural clay

  • 1. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China; 2. Institute of Geotechnical Engineering, Transportation College, Southeast University, Nanjing 210096, China

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  • Received Date: September 26, 2013
  • Published Date: June 19, 2014
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  • Isotropically consolidated undrained triaxial compression shear tests are performed on both undisturbed and remolded Fuzhou clays to compare their difference in mechanical behavior caused by soil structure. It is understood that the strength behavior of natural clays can be classified into three regimes: (a) the pre-yield regime, in which the undrained shear strength is controlled mainly by soil structure; (b) the transitional regime, in which the strength behavior is affected by both soil structure and stress level, and it gradually coincides with that of the remolded specimens as the soil structure gradually damages with the increase in applied stress; (c) the destructured regime, in which the strength behavior becomes the same as that of the remolded specimens.
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