›› 2003, Vol. 24 ›› Issue (6): 979-982.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Influence of density on matrix suction of sandy soil

WANG Tie-hang1,2 , WANG Xiao-feng1,3   

  1. 1. College of Civil Engineering, Xi’an University of Architecture and technology, Xi’an 710055, China； 2.Research Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an 710048, China 3. Department of Civil Engineering, Guilin Institute of Technology, Guilin 541004, China
  • Received:2002-07-19 Online:2003-12-10 Published:2014-08-19

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Abstract: At present, according to the soil-water retention curve, the matrix suction of soil is mainly obtained by moisture content, which neglects the influence of density on matrix suction. This is imperfect both in theory and in application. Taking the Baqiao Bridge sandy soil for sample, the matrix suction of sandy soil with various densities and moisture contents is tested. After analyzing the test data, the relation between the matrix suction and moisture content in three kinds of densities is got, and taking the density and moisture content both into account, the formula is obtained to determine the matrix suction. The one-dimensional moisture migration test verifies the influence of density on moisture migration. Then this paper finds the changing law that the matrix suction changes obviously with density especially in low moisture content. And with the same moisture content, if the density is gradually added, the value of matrix suction first is lowered, then added and finally lowered, this phenomenon is probed into in this paper.

Key words: matrix suction, sandy soil, density, moisture content

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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