Numerical analysis on subgrade settlement caused by structure layer of the highspeed railway

摘要

Based on the gemetric parameters and the mechnical parameters of the high speed railway subgrade structure, a umerical simulation method is used to calculate subgrade settlement of tbe high-speed railway in this paper. According to the analyse on the settelement of the foundation and the subgrade surface under different loading and standing time conditions, the laws of subgrade settlement caused by the structure layer are studied systematically, the mechanism of that is revealed, and corresponding suggestions are put forward for the subgrade settlement control. The Research Results are of great significance to tbe design and the subgrade settlement evaluation of tbe high-speed railway.