›› 2005, Vol. 26 ›› Issue (8): 1195-1200.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on effect of initial stress condition on dynamic behavior and deformation parameters of loose sands

GUO Ying1, 2, LUAN Mao-tian1, 2, 3, SHI Dan-da2, XU Cheng-shun2, HE Yang2, LI Mu-guo1, 2   

  1. 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 2. Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China; 3. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2004-05-13 Online:2005-08-10 Published:2013-12-26

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Abstract: The soils under the foundation of building or within the slope are usually in complex initial stress state before subjected to cyclic loading induced by earthquake shaking or wave loading. The conventional laboratory experiments of soils cannot authentically reproduce dynamic behavior of soils under complex consolidation stress states. The soil static and dynamic universal triaxial and torsional shear apparatus recently developed in Dalian University of Technology is employed to perform experimental tests on Fujian standard sand with relative density of Dr=30 % under complex initial stress state subjected to cyclic torsional shear loading. Through a series of soil tests, the effects of both initial orientation of principal stress and the initial ratio of deviatoric stress on dynamic modulus and damping ratio of sand are investigated systematically.

Key words: initial consolidation condition, cyclic torsional shear tests, initial deviatoric stress ratio, initial orientation of principal stress, dynamic modulus, damping ratio

CLC Number: 

  • TU 443
  • 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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