Email this article Settlement of Soft Clay Subgrade Under Coupled Effects of Vibration Frequency and Dynamic Stress Ratio Caused by High-Speed Train Loads
- Authors: Shen Y.1, Xu H.1, Tao M.2, Wang B.1, Song S.1
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Affiliations:
- Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University
- The Third Railway Survey and Design Institute Group Corporation
- Issue: Vol 54, No 2 (2017)
- Pages: 87-96
- Section: Soil Mechanics
- URL: https://journals.rcsi.science/0038-0741/article/view/244088
- DOI: https://doi.org/10.1007/s11204-017-9439-3
- ID: 244088
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Abstract
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.
About the authors
Yang Shen
Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University
Email: smfe@mail.ru
China, Nanjing
Haidong Xu
Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University
Email: smfe@mail.ru
China, Nanjing
Mingan Tao
The Third Railway Survey and Design Institute Group Corporation
Email: smfe@mail.ru
China, Tianjin
Baoguang Wang
Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University
Email: smfe@mail.ru
China, Nanjing
Shunxiang Song
Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University
Email: smfe@mail.ru
China, Nanjing
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