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Volume 41 Issue 4
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YAO Yang-ping, WANG Shen, WANG Nai-dong, ZHANG Qian-li. Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
Citation: YAO Yang-ping, WANG Shen, WANG Nai-dong, ZHANG Qian-li. Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
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Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads

  • 1. School of Transportation Science and Engineering, Beihang University, Beijing 100083;
    2. Railway Construction Research Institute of China Railway Research Institute Group Co., Ltd., Beijing 100081, China

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  • Received Date: March 18, 2018
  • Published Date: April 24, 2019
    Graphical Abstract
    • Abstract
  • The long-term settlement of high-speed railway subgrade usually occurs under the influences of the nearby loads, and it will result in unsafety of the high-speed running trains. A practical computation method for creep is proposed by Yao et al, and it can predict the future deformation according to the limited settlement data. Taking the simulating data from the ABAQUS software which can simulate the increasing subgrade settlement with time as examples, the feasibility of using the practical method for creep to predict the long-term deformation of high-speed railway subgrade is demonstrated, and the relavant method to calculate the effective range of the prediction under certain errors is also given. It is shown that by using the practical method for creep, we can accurately predict the deformation based on the existing data, and also can get the early warning deformation of the railway for the future. It is of great significance to the safe operation management of high-speed railways.
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    • References (12)
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