Settlement of Soft Clay Subgrade Under Coupled Effects of Vibration Frequency and Dynamic Stress Ratio Caused by High-Speed Train Loads

  • Yang Shen
  • Haidong Xu
  • Mingan Tao
  • Baoguang Wang
  • Shunxiang Song

Settlement regularity of soft clay subgrade under cyclic principal stress rotation caused by high-speed train loads is investigated. In laboratory tests, it is found that, with increasing vibration frequency at a fixed dynamic stress ratio, the increase of axial plastic cumulative strain in saturated soil is restricted at mid-high frequencies (0.5-2 Hz), and the changes in pore-water pressure are not evident. Combined with the empirical settlement formula and analysis of the dynamic amplification equation of German standard, a simplified settlement calculation method accounting for resonance is obtained.


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Yang Shen
    • 1
  • Haidong Xu
    • 1
  • Mingan Tao
    • 2
  • Baoguang Wang
    • 1
  • Shunxiang Song
    • 1
  1. 1.Key Laboratory of the Ministry of Education for Geomechanics and Embankment EngineeringHohai UniversityNanjingChina
  2. 2.The Third Railway Survey and Design Institute Group CorporationTianjinChina

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