›› 2006, Vol. 27 ›› Issue (S1): 581-585.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Influence of liquids on swelling characteristics and hydraulic properties of heosynthetic clay liners

LI Zhi-bin, XU Chao   

  1. Key laboratory of Geotechnical Engineering, United Research Center for Urban Environment and Sustainable Development, the Ministry of Education, Tongji University; Shanghai 200092, China
  • Received:2006-05-10 Published:2006-12-15

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Abstract: Recently, geosynthetic clay liners (GCL) were more and more used in different anti-seepage engineering projects; and their swelling characteristics and hydraulic properties become a focus of designers and researchers. The influencing of liquids on swelling characteristics and hydraulic properties of GCL, as well as the relationship between swelling characteristics and hydraulic properties, were researched through hydration swell tests, free swell tests and hydraulic conductivity tests. It was found that hydration liquid and permeation liquid had influences on swelling characteristics and hydraulic properties of GCL. Test results have shown that: (1) the hydraulic conductivity of GCL was influenced by permeation liquids when hydration liquid was the same; and the hydraulic conductivity of GCL was also influenced by hydration liquids when permeation liquid was the same; (2) there was a relationship between hydration swells and hydraulic conductivities; the bigger the hydration swells, the lower the hydraulic conductivities; (3) there was also a relationship between free swells and hydraulic conductivities, the bigger the free swells, the lower the hydraulic conductivities.

Key words: geosynthetic clay liners (GCL), swelling characteristics, hydraulic properties, liquid, influence

CLC Number: 

  • TU411.5
  • 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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