›› 2008, Vol. 29 ›› Issue (8): 2193-2198.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Test study on influence of fine particle content on dynamic pore water pressure development mode of silt

ZENG Chang-nü1, LIU Han-long2, CHEN Yu-ming2   

  1. 1. Department of Civil and Architecture, Henan University of techonology, Zhengzhou 450052, China; 2. Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2007-01-20 Online:2008-08-11 Published:2013-08-02

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Abstract: Laboratory tests on dynamic pore water pressure of silty soils are carried out in a new universal triaxial torsional shear apparatus of Hohai University. The influence of clay particle content and silt particle content on dynamic pore water pressure of disturbed silty soil is concluded. The mode of dynamic pore water pressure of silty soil can be expressed in a modified exponential function with two parameters a and b to simulate the severity of liquefaction after initial liquefaction. It is found that fines content has great effect on the dynamic pore water pressure of silt by the parameter b. The relationship between parameter b and silt particle content is linear, while the relationship between parameter b and clay particle content isn’t linear which reaches the maximum value when the clay content is 8 %. It is validated that modified dynamic pore water pressure mode has widely application by many tests data from both the author’s and others’.

Key words: dynamic loading, pore water pressure, silt, fine particle content, lab test

CLC Number: 

  • TU 411.8
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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