吉林大学学报(工学版)

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Dynamic damage model of silty clay after freeze-thaw cycles

Dai Wen-ting1，Wei Hai-bin1，2, Liu Han-bing1, Gao Yi-ping1   

  1. 1.College of Transportation, Jilin University, Changchun 130022,China; 2.College of Applied Technology, Jilin University, Changchun 130022,China
  • Received:2006-08-28 Revised:2006-11-03 Online:2007-07-01 Published:2007-07-01
  • Contact: Wei Hai-bin

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Abstract: From the dynamic triaxial tests on the silty clay after freeze-thaw cycles the dynamic characteristics of silty clay as roadbed filling were studied. The quantitative relationship between the dynamic strength and the number of dynamic load cycles and the freezethaw cycles,the relationship curve between the dynamic module and the the number of freeze-thaw cycles were obtained. A dynamic module damage model was built to predict the dynamic strength and maximum dynamic module of the silty clay after every freezethaw cycle. The built prediction model is characterized by high precision, can be used to evaluate the effect of the freezethaw cycles on the service life of the silty clay roadbed.

Key words: road engineering, silty clay, freeze-thaw cycles, dynamic strength, dynamic module, prediction model

CLC Number: 

  • U416.1
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