Title: RailJET?: Soft Subgrade and Embankment Stabilization, Introduction of New Hi-Rail Technology for Subgrade Maintenance

摘要

Soft Subgrades: 1.Unsuitable material used for trackbed construction 2. Poor Compaction or subgrade treatment prior to construction Poor drainage causing constant saturated conditions!! Effects: 1. Bearing Capacity Failure of Subgrade soils 2. Track Profile defects and differential settlement 3. Track delays / slow orders decrease capacity and efficiency 4. Maintenance costs, equipment and crew resources are allocated to problem areas, neglecting normal maintenance 5. Potential for Derailments and track outages.