›› 2005, Vol. 26 ›› Issue (4): 580-585.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on shear strength of the unsaturated soils in pendular state and its application

JIA Qi-jun1,2 , ZHAO Cheng-gang2, HAN Zi-dong3   

  1. 1. Beijing Guodaotong Highway Design & Research Institute, Beijing 100053, China; 2. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 3. Beijing Zhong Zi Hua Ke Traffic Engineering Technology co.Ltd, Beijing 100037, China
  • Received:2004-01-04 Online:2005-04-09 Published:2013-12-19

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Abstract: Based on the micromechanical structure, an approximate equation between the increase of normal stress and suction due to capillarity in unsaturated assemblies of unequal-sized spheres is proposed and derived; and then the shear strength of unsaturated soils in pendular stage is derived also. All the equations derived have been verified by experiments and theoretical analysis. At last, the effect of soil gradation on the shear strength of unsaturated soils is analyzed qualitatively.

Key words: unsaturated soils, pendular state, matric suction, effective stress, shear strength

CLC Number: 

  • TU 411.3
  • 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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