›› 2006, Vol. 27 ›› Issue (11): 1945-1948.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Variation characteristics of soil structure of unsaturated loess under different stress paths

ZHANG Teng, HU Zai-qiang, WU Xing-hui, CHEN Cun-li   

  1. Institute of Geotechnical Engineering，Xi’an University of Technology, Xi’an 710048, China
  • Received:2005-09-30 Online:2006-11-10 Published:2013-12-04

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Abstract: Taking the unsaturated loess at Yangling in Shaanxi Province as the research object, the compressive tests on different stress paths are made with the intact loess and the corresponding remoulded loess under different water contents. The comprehensive structure potential parameters of unsaturated loess are calculated under different stress conditions. Based on the above, the variation characteristics of structural loess are studied under equal stress ratio condition. The result indicates: when the water content is invariable, the stress ratio(?=?3/?1)influences the structural characteristics of intact loess obviously; the performance is smaller for the stress ratio; the structural characteristics of intact loess is weaker; when the stress ratio is invariable, the water content of intact loess influences the structural parameter obviously. The lower water content, the bigger structural parameter. Especially in the region of low water content, the structural characteristics of unsaturated loess are influenced by the variation of water content strongly.

Key words: unsaturated loess, structural properties, stress ratio

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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