An Implicit-Explicit Transition Method for Settlement Prediction of High-Speed Railway Subgrade Under High-Cycle Load

Chengdu - Mianyang – Leshan (C-M-L for short) high speed railway in Chengdu section is located in the ground of weathered Mud rock overlying deep Chengdu clay area. Based on Chengdu clay ground of in high-speed railway construction project of CML, this article introduced the Burgers model to establish the objective function to analysis rheological constitutive model. The visco-elastic parameters of Burgers model are determined by back analysis of field monitoring data. By the method of iterative back analysis by layer of visco-elastic parameters, based on measured result, predicted the late settlement, and comparison with the follow-up observations records to verify the Burgers model.

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Study on Application of Asaoka Method on Settlement Prediction of Pile Foundation for High Speed Railway Bridges

Challenges and Advances in Sustainable Transportation Systems ◽

10.1061/9780784413364.082 ◽

2014 ◽

Cited By ~ 1

Author(s):

Jiang Hao ◽

Jun Dong

Keyword(s):

Pile Foundation ◽

High Speed ◽

High Speed Railway ◽

Railway Bridges ◽

Settlement Prediction

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Bridge pier settlement prediction in high-speed railway via autoregressive model based on robust weighted total least-squares

Survey Review ◽

10.1080/00396265.2016.1236162 ◽

2016 ◽

Vol 50 (359) ◽

pp. 147-154 ◽

Cited By ~ 2

Author(s):

X. Gong ◽

Z. Li

Keyword(s):

Least Squares ◽

Autoregressive Model ◽

High Speed ◽

Total Least Squares ◽

Bridge Pier ◽

High Speed Railway ◽

Settlement Prediction ◽

Weighted Total Least Squares ◽

Model Based

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The Application of the Creep Model in the High-Speed Railway Subgrade Settlement Prediction Techniques

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.1253 ◽

2013 ◽

Vol 423-426 ◽

pp. 1253-1258 ◽

Cited By ~ 1

Author(s):

Jian Li ◽

Shan Xiong Chen ◽

Fei Yu

Keyword(s):

High Speed ◽

Creep Model ◽

High Speed Railway ◽

Settlement Prediction ◽

Calculating Method ◽

Function Fitting ◽

Surcharge Preloading ◽

Starting Point ◽

Project Cycle ◽

Prediction Techniques

Settlement prediction is an important method to judge whether the post-construction settlement of the high-speed railway foundation satisfies the requirement of the standard. The paper uses the numerical calculating method based on creep model to predict the subgrade post-construction settlement of the surcharge preloading processing segment of the high-speed railway through inversing the creep parameters, and does comparative analysis with the more researched function fitting methods. The conclusion is that: (1) the numerical calculating method based on creep model is feasible to predict the post-construction settlement; (2) the method can predict the settlement trend with any time starting point; (3) the method can predict the settlement with relatively less actually measured data so as to saving project cycle.

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