ABSTRACT
The paper presents research result of geosynthetics applications in railway structure with focus on ballast and subballast stabilization. Previous investigations have indicated the influence of geosynthetics on ballast bearing capacity and its deformation behavior, but field results of railway track geometry needs to be made. In addition, long-term behavior of stabilized track structure has not clearly indicated yet. In this study the influence of geosynthetics in ballast layer on long-term behavior estimated by the state of the track geometry. For this purpose, rail spotter and track leveling were used. The results have shown that deflection accumulation rate over time on the section with geosynthetics is 1.8 times lower than on the usual one, and the unevenness of track lowering is 1.7 times lower. Ballast stabilization with geomaterials in any case reduces the cost of current maintenance, the most complete difference in labor costs is felt starting from 4 years of post-repair operation.
