Influence and Control Strategy for Local Settlement for High-Speed Railway Infrastructure

Abstract

This paper discusses the main impact factors of the local settlement and differential settlement of high-speed railway lines. The analysis results show that groundwater exploitation is the direct cause of differential settlement. Based on the study of ballastless track additional load and of vehicle, track, and bridge dynamic responses under different differential settlements, a control standard of differential settlement during operation is proposed preliminarily.

Keywords

• Local settlement
• Differential settlement
• Additional load of ballastless track
• Vehicle and track dynamics