Numerical Analysis to Impact of Different Heights for Subgrade Connecting in High-Speed Railway

Abstract:

Subgrade connecting has become an important research project in high-speed railway construction engineering. Combining the hub project of Hefei railway, numerical calculation was executed with different subgrade heights to existing line’s safety operation and subgrade stability by FLAC software. It shows that deformations in the vertical direction of the connection between the new subgrade and the old and the old subgrade surface increase following the increment of subgrade height, and the velocity of deformation increment also aggrandize. Reduction of subgrade height is beneficial to trains safety on existing line and subgrade integration property. It will be instructive to control differentia deformation for the connecting subgrade projects in high-speed railway.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 1256-1259
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.1256
• Online since: December 2010
• Authors: Jian Yi Yuan, Ya Yu Lv
• Keywords: Deformation, High-Speed Railway (HSR), Subgrade Connecting, Subgrade Height

References

[1] Z. B Guo, Yu J, Xu Z.Z. submitted to Journal of Construction Technology. in Chinese (2002).

[2] J. H Zhang. PhD thesis, Southeast University in Chinese(2006).

[3] G. R Lv. PhD thesis, Shandong University in Chinese (2008).

[4] G. S Liu. PhD thesis, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences(2009).

[5] J. Y Yuan. submitted to International Symposium on Innovation & Sustainability of Structures in Civil Engineering. (2009).

[6] L. Chen, H.Y. Lu, Y.M. Chen. submitted to Journal of of Disaster Prevention and Mitigation Engineering. in Chinese (2008).

[7] D. W Zhang, S.Y. Liu. submitted to Journal of Highway and Transportation Research and Development. in Chinese(2006).

[8] L. B Ling, H. B Liu, Z.M. Su. submitted to Journal of Highway and Transportation Research and Development. in Chinese (2008).