›› 2008, Vol. 29 ›› Issue (6): 1530-1534.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A hypoplastic model of gravelly soil considering physical state

ZHANG Ga1, ZHANG Jian-min1, WU Wei2   

  1. 1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; 2. Institute of Geotechnical Engineering, BOKU, Vienna, 1180 Vienna, Austria
  • Received:2006-09-01 Online:2008-06-10 Published:2013-07-15

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Abstract: A hypoplastic model was investigated to describe the monotonic and cyclic behavior of gravelly soil. A new model was established through introducing the fundamental concepts of hypoplasticity theory and the critical state parameters. The formulae were derived; and their parameter determination method was also illustrated. The monotonic and cyclic stress-strain relationship response of a few gravels in practical projects were predicted and compared with the test results. The new model has few parameters, three-dimensional format and succinct formulae without loading criterion. The model is able to capture main monotonic and cyclic behaviors of gravelly soil, including the nonlinear relationship between the strength and confining pressure, the volumetric strain behavior dependent on confining pressure, contraction due to unloading and volumetric strain accumulation due to loading.

Key words: gravelly soil, constitutive model, hypoplasticity, critical state, physical state

CLC Number: 

  • TU 43
  • 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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