Author:
Wang Weiying,Huang Quanqiang,Pan Ke,Li Jinmei
Abstract
High-speed railways often run over underground metro stations. Dynamic load induced by high-speed train can influence the internal force of underground structure and hence can pose danger to the underground structure. Hence, it is necessary to estimate the safety of underground structure due to high-speed train load. In this paper, the effects of dynamic load induced by high-speed train on metro station are investigated by carrying out three-dimensional numerical analysis. Guinan high-speed railway, which is designed to run over Jinqiao metro station in Nanning, Guangxi province of China are adopted as the background of this case study. The hardening soil model with small-strain stiffness was adopted to model the behaviour of soil. Two typical speed of railway train (i.e., 160 km/h and 350 km/h) are considered in this study. Based on the numerical analysis, vertical vibration acceleration and bending moment of the structure of the metro station are presented and analysed.
Reference8 articles.
1. C. J. C. Jones and J. R. Block, “Prediction of ground vibration from freight trains,” Journal of Sound and Vibration, Vol. 193, No. 1, pp. 205–213, May 1996, https://doi.org/10.1006/jsvi.1996.0260
2. S.-J. Feng, X.-L. Zhang, L. Wang, Q.-T. Zheng, F.-L. Du, and Z.-L. Wang, “In situ experimental study on high speed train induced ground vibrations with the ballast-less track,” Soil Dynamics and Earthquake Engineering, Vol. 102, pp. 195–214, Nov. 2017, https://doi.org/10.1016/j.soildyn.2017.09.001
3. S. G. Xiao, Q. R. Yan, and W. Chen, “Characteristics of settlement and assessment methods of engineered structures under certain high-speed railway tracks in China,” Advanced Materials Research, Vol. 446-449, pp. 1869–1879, Jan. 2012, https://doi.org/10.4028/www.scientific.net/amr.446-449.1869
4. K. Liu, “Study on dynamic response of tunnel structure in early age stage under dynamic load of upper railway,” (in Chinese), Ph.D. Thesis, Southwest Jiaotong University, 2019.
5. J. H. Atkinson, D. Richardson, and S. E. Stallebrass, “Effect of recent stress history on the stiffness of overconsolidated soil,” Géotechnique, Vol. 40, No. 4, pp. 531–540, Dec. 1990, https://doi.org/10.1680/geot.1990.40.4.531