For over 30 years, the GEOWEB® soil stabilization system has been successfully employed in rail applications to solve challenging soil stability problems. The system is quick to install without special equipment or labor, limiting costly downtime. The GEOWEB 3D system is a proven, versatile solution especially beneficial in soft soil environments and high impact areas.
Ballast Subgrade Reinforcement
Soft, saturated subgrade under track causes speed reduction and even derailment in severe cases. The GEOWEB confinement technology provides substantial reinforcement, keeping the subballast contained and resistant to movement, degradation, washout, resulting in reduced cross section depth and long-term maintenance.
• Unlike 2D planar solutions, the GEOWEB system creates a stiffer subballast layer under track that reduces vertical stresses and differential settlement, allowing for a reduction of the subballast section up to 50%.
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• Compared to Hot Mix Asphalt (HMA), the GEOWEB system installs 2-3 times faster, with less equipment, and at up to half the cost. |
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Bridge Approaches, Crossing Diamonds & High Stress Areas
High impact areas subjected to heavy stresses are especially problematic. Conventional stabilization methods (i.e. geogrids, HMA) have traditionally been less than effective at reducing long-term maintenance.
Field Experience and AAR Test Credentials
Results of 30 years of rail industry use, and testing conducted at the AAR FAST High Tonnage Loop verify the GEOWEB system's effectiveness in improving load distribution and reducing vertical stresses reaching the subgrade. The end result is a more durable subgrade that increases railway life by preventing long term settlement and consolidation.
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Information courtesy of Presto Geosystems
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