›› 2008, Vol. 29 ›› Issue (2): 420-424.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on nonlinear permeability characteristics of Xiaoshan clay

XIE Kang-he1, QI Tian1, HU An-feng1, XIA Jian-zhong2   

  1. 1. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou 310027, China; 2. Zhejiang University of Science and Technology, Hangzhou 310027, China
  • Received:2006-04-24 Online:2008-02-11 Published:2013-07-10

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Abstract: Based on nonlinear relationship between permeability and void ratio of intact natural clay, four theoretical permeability models, i.e. model, model, model, and model, are introduced and discussed. The 1-D consolidation and permeability combined tests on eight undisturbed Xiaoshan clay samples are carried out by GDS advanced consolidation testing system. Void ratio and directly-measured permeability coefficient obtained from the test results are analyzed to summarize clay parameters of four permeability models. Experimental results show that the permeability of Xiaoshan clay decreases nonlinearly with consolidation pressure increasing; and the permeability coefficient varies from 8×10-8 to 8×10-9 . It is also shown that all the four nonlinear permeability models are suitable for describing the permeability of Xiaoshan clay.

Key words: Xiaoshan clay, GDS advanced consdidation testing system, permeability, void ratio, nonlinearity

CLC Number: 

  • TU 411
  • 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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