›› 2000, Vol. 21 ›› Issue (1): 20-23.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

The degradation of undrained shear strength of undisturbed and remolded marine clay after cyclic loading

Wang Shuyun , Lou Zhigang   

  1. Institute of Mechanics , Chinese Academy of Sciences, Beijing 100080, China
  • Received:1999-04-27 Online:2000-03-20 Published:2016-11-21

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Abstract: The behavior of stress, strain, pore pressure and static undrained shear strength of undisturbed or remolded marine silty clay samples under undrained cyclic loading conditions is analyzed. The degradation of undrained shear strength is related to the cyclic strain and accumulated pore pressure produced by undrained clyclic loading. Based on the principle of quasi-overconsolidation and the results of comparing the cyclic triaxial test on normal consolidated samples and the static triaxial test on overconsolidated samples, the relation between normalized undrained shear strength and quasi-overconsolidation ratio is estabalished. In order to estimate the degradation of undrained shear strength of marine sily clay , the cyclic triaxial test results of undisturbed and remolded marine silty clay samples are needed.

Key words: degradation, cyclic loading, cyclic strain, quasi-overconsolidation, accumulated pore pressure

CLC Number: 

  • TU 43
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