›› 2009, Vol. 30 ›› Issue (4): 981-984.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Strength parameter of sands under true triaxial test

LÜ Xi-lin 1,2，HUANG Mao-song 1,2，QIAN Jian-gu 1,2   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2007-08-24 Online:2009-04-10 Published:2011-01-30

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Abstract:

Based on SMP failure criterion and three shear angles theory, two formulas, which express the peak friction angle of sandy soils in general stress condition as that under axisymmetric condition, are deduced. Then, the influence of the intermediate principal stress ratio is studied. These two formulas are modified by taking account of the difference of peak friction angle that exists between axisymmetric compression condition and axisymmetric tension condition. It is shown that the modified formulas can provide reasonable results against experimental results with true triaxial test for sandy soils.

Key words: strength, intermediate principal stress ratio, true triaxial test

CLC Number: 

  • TU 443
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