吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 389-393.doi: 10.13229/j.cnki.jdxbgxb201502008

• Orignal Article • Previous Articles     Next Articles

Improved calculation method of critical filling height of embankment on soft ground

ZHU Fu1,2,NIE Lei1,ZHAN Gao-feng1,2,WANG Jing2   

  1. 1.College of Construction Engineering, Jilin University, Changchun 130026, China ;
    2.School of Transportation Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
  • Received:2014-06-18 Online:2015-04-01 Published:2015-04-01

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Abstract: A new theoretical formula for soft ground bearing capacity is derived. This formula is based the unified strength theory, and the effects of consolidation, intermediate principal stress and the coefficient of lateral pressure are taken into consideration. According to this formula, an improved calculation method of the critical filling height of embankment is proposed. In addition, the calculation method is applied to railway subgrade filling test data to check its feasibility. The calculated results show reasonable good agreement with experiment results. The new formula may be used as the theoretical basis for determining the safe filling height at different phases of railway subgrade works.

Key words: road engineering, soft ground, unified strength theory, critical filling height

CLC Number: 

  • U416.1
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