Effect of content and plasticity of fines on liquefaction behaviour of soils

P. H. Tsai, D. H. Lee, G. T.C. Kung, C. H. Hsu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The purpose of this study is to investigate the effect of content and plasticity of fines on the liquefaction resistance and the post-liquefaction volumetric strain εv,pl of soils through a series of cyclic triaxial tests with remoulded samples considering various levels of cyclic stress ratio (CSR). Silt and clay were employed as the fines material, and the dry deposition method was used to prepare remoulded samples. Test results showed that for soils with silt fines (S soils), increase of fines content (FC) reduces the liquefaction resistance and causes larger εv,pl,. Conversely, for soils with clay fines (C soils), increase of FC raises the liquefaction resistance and results in lower εv,pl,. For the same level of FC and CSR, the liquefaction resistance of C soils is higher than that of S soils. The εv,pl, of S soils is greater than that of C soils. For S soils, the εv,pl, rises with increasing FC, whereas for C soils, the inverse result is obtained. These results show that the plasticity of fines affects the liquefaction behaviour of soils significantly.

Original languageEnglish
Pages (from-to)95-106
Number of pages12
JournalQuarterly Journal of Engineering Geology and Hydrogeology
Volume43
Issue number1
DOIs
Publication statusPublished - 2010 Feb 1

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geology
  • Earth and Planetary Sciences (miscellaneous)

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