›› 2010, Vol. 31 ›› Issue (6): 1692-1698.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Quantitative assessment on change in microstructure of loess during collapsing using electrical resistivity measurement

ZHA Fu-sheng1, 2，LIU Song-yu2，DU Yan-jun2，CUI Ke-rui1，XU Long1   

  1. 1. School of Resources and Environment Engineering, Hefei University of Techology, Hefei 230009, China; 2. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
  • Received:2009-06-22 Online:2010-06-10 Published:2010-06-25

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Abstract:

It is difficult to do quantitative analysis of the microstructure of soils with traditional methods. A soil electrical resistivity method is introduced to quantitatively by analyze the loess microstructure in collapsing process. The collapsing tests were performed on the undisturbed loess samples with a modified oedometer consolidation cell. The vertical and horizontal electrical resistivity were measured during collapsing. Soil electrical resistivity parameters, such as the vertical and horizontal formation factor, the average formation factor, the electrical anisotropy index and the average shape factor were then calculated and studied. Experimental results show the effectiveness of soil electrical resistivity method in quantitative assessment on the microstructure change of loess during collapsing.

Key words: loess, collapse, soil electrical resistivity, microstructure, quantitative

CLC Number: 

  • TU 411
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