›› 2006, Vol. 27 ›› Issue (11): 1891-1896.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on relationship between structure and deformation property of intact loess

CHEN Cun-li1, HU Zai-qiang1, GAO Peng2   

  1. 1.Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an 710048, China； 2.Geotechnical Investigation And Surveying Institute of Nuclear Industry, Zhengzhou 450022,China
  • Received:2005-01-15 Online:2006-11-10 Published:2013-12-04

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Abstract: The compression tests are conducted on Lanzhou and Xi’an intact loess under different water contents. The quantitative comprehensive structural parameter is defined by using void ratio of intact, disturbed and saturated loess. The effects of water content and pressure on the structural parameter are investigated. The study indicates. (1) The better relationship between deformation characteristics (compressibility and collapsibility) and structure can be obtained by using the variation characteristics of the structural parameter of intact loess with the change of water content and pressure. (2) Under the same water content, the structure parameter increases with the increase of pressure before structure strength; and it decreases or scarcely increases after it. (3) Under the same pressure, the structure parameter scarcely decreases with the increase of water content before the initial structure destruction water content ?f; and it apparently decreases after it. ?f decreases with the increase of pressure. The change of water content has obvious effect on the structure parameter.(4) The relationship between coefficient of collapsibility and the structural parameter almost is the same line for intact loess in two regions under different pressures and water contents.

Key words: intact loess, water content, compression test, structure, collapsibility, compressibility, structural parameter

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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