고속철도 토공노반궤도 잔류침하량 정확도 개선을 위한 연구

초록

The roadbed settlements cause a deformation of the railway and affect the vehicle running and track structure stability. So, The accurate calculation of the residual settlement is important. In this paper, The calculated residual settlement compared to measured residual settlement for testbed section. And the goundwater level, consistency, replacement materials and height of embankment are selected as factors to residual settlement. The groundwater level lowering or height of embankment increment show a tendency to occur differential between calculated and mesurement residual settlement. But the settlement have little to do with consistency and replacement materials. In conclusion, it is necessary to consider the influences of groundwater level lowering and soil property(consistency, replacement materials), excluding embankment height(fixed factor) to improve the accuracy in the residual settlement of track for high-speed railway.