Geodynamics of high-speed railway. (1st December 2018)

• Record Type: Journal Article
• Authors: Bian, Xuecheng; Li, Wei; Hu, Jing; Liu, Hongming; Duan, Xiang; Chen, Yunmin
• Is Part Of: Transportation geotechnics. Volume 17(2018)Part A
• Page Start: 69
• Page End: 76
• Publication Date: 2018-12-01
• Subjects: Geodynamics of high-speed railway -- Soil stress distribution -- Accumulative settlement -- Physical model test -- Pile-supported embankment; Engineering geology -- Periodicals; Soil mechanics -- Periodicals; Rock mechanics -- Periodicals; Transportation -- Periodicals; 624.15105
• DOI: 10.1016/j.trgeo.2018.09.007
• Languages: English
• ISSNs: 2214-3912

Abstract

Abstract: High-speed railway is one kind of important transportation infrastructures developed in many countries worldwide, and it has significant benefits on both economic development and social progress. The most obvious feature distinguishing the high-speed railway from the conventional railway is its high train operation speed, and this leads to strict standards to control railway vibration as well as settlement in design and operations. Geodynamics of high-speed railway becomes an interdisciplinary field of railway engineering, geotechnical engineering, structural dynamics, and has been a hot topic with the dramatic development of high-speed railways world widely. This paper summarizes the recent research advances on geodynamic issues on the high-speed railway, focusing on the theoretical modeling of track-substructure dynamic interaction and consequent wave propagation in soils, distribution of dynamic soil stresses in the soils under track structure and the dynamic amplification as train speed increases, as well as the prediction methods of subgrade accumulative settlement caused by train operations. Finally, some prospective are put forward on the studies on geodynamics of high-speed railways.