›› 2011, Vol. 32 ›› Issue (S1): 49-54.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Compressibility and permeability behavior of two types of amended soil-bentonite vertical cutoff wall backfills

DU Yan-jun, FAN Ri-dong   

  1. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
  • Received:2010-12-20 Online:2011-05-15 Published:2011-05-16

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Abstract: Soil-bentonite vertical cutoff walls are effective and economical as engineering barriers for geoenvironmental containment. The compressibility and permeability of zeolite-amended soil-bentonite vertical cutoff walls for the purpose of enhancing the chemical compatibility have not been well addressed. These two engineering properties of soil-bentonite backfills before and after amended with zeolite are assessed via a series of oedometer tests. The results are discussed using the generalized state parameter (i.e. e/eL) and the void index Iv, which are used to analyze the intrinsic properties of remolded clays.

Key words: cutoff wall, consolidation, compressibility, permeability

CLC Number: 

  • TU 443
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