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Volume 28 Issue 6
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WANG Hongbo, SHAO Longtan, ZHANG Xuezeng. Studies on stress-strain equation of noncohesive soils obtained from oedometer tests based on hypoplastic constitutive model[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(6): 780-783.
Citation: WANG Hongbo, SHAO Longtan, ZHANG Xuezeng. Studies on stress-strain equation of noncohesive soils obtained from oedometer tests based on hypoplastic constitutive model[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(6): 780-783.
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Studies on stress-strain equation of noncohesive soils obtained from oedometer tests based on hypoplastic constitutive model

  • 1.China Petroleum Pipeline Engineering Corporation Langfang 065000 China 2.State Key Laboratory of Structure Analysis for Industrial Equipment Dalian University of Technology Dalian 116023 China 3.China Petroleum Pipeline Bureau Langfang 065000 China

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  • Published Date: June 14, 2006
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    • Abstract
  • According to the hypoplastic constitutive model,the stress-strain equation of granular materials could be obtained from oedometer test.The determination of granulate hardness hs and exponent n in a hypoplastic constitutive model was investigated,and a hypoplastic constitutive model was presented based on hypoplasticity.According to hypoplasticity and optimization,the authors put forward an improved method to determine the parameters of n and hs using iterative operation.The further investigation of the equation showed that it could be used to determine stress-strain relation in oedometer test.
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