This article first appeared in the Railway-News Magazine Issue 1, 2022.
Every year, railroads dedicate a great deal of capital and resources towards creating and maintaining high-quality track profiles. Providing a well-designed track profile is the foundation on which a successful rail line operates.
With ballooning rail traffic carrying heavier loads than ever, and increased occurrence of extreme weather events, a stable track profile is essential for successful operation.
GEOWEB® geocells have been used in the track bed for rail applications worldwide for more than 40 years. Through an interconnected honeycomb-like network, the HDPE-based GEOWEB® Soil Stabilisation System provides apparent cohesion and strength to materials that would otherwise be unstable over soft subgrades. Geocells stabilise the ballast, reduce vertical and lateral stresses and limit ballast movement. Stabilisation within the geocell system provides a longer lasting track profile that extends rail service life, while also reducing maintenance cycles and recurring maintenance costs. Research has shown that geocells reduce settlement of the ballast foundation and can reduce required cross-section thicknesses by up to 50%. This is particularly advantageous where track beds must be constructed over soft soils. The reduction in thickness leads to cost savings, along with an accompanying reduction in carbon emissions due to decreases in aggregate processing, transportation, handling and installation. In general, geosynthetics offer tremendous potential in reducing carbon emissions from civil construction projects, in many cases by 50% or more.
In the United Kingdom, Network Rail encountered extremely soft soils with low shear strengths during track modifications to the North West Electrification Programme. Due to soft subgrade conditions, conventional track design methods resulted in cross-sections as thick as 1 metre. Poor soil conditions along the track route required a soil stabilisation solution to improve undertrack stiffness and provide a more cost-effective solution.
Railway-News magazine Issue 4 Track & Infrastructure edition, November 2022: Presto Geosystems - Retaining Wall Eliminates Track Instability.
Complete your rail projects successfully using this handy resource guide from soil stabilisation expert, Presto Geosystems.
Railway-News magazine Issue 2, June 2022: Presto Geosystems – Geocells Protect Railroads Against Potential Impacts of Climate Change.
Presto Geosystems will be holding a webinar on March 14 to discuss rail ballast stabilisation with its GEOWEB® 3D Geocells.
Presto Geosystems will be hosting a free online webinar on Port & Intermodal Yard Stabilisation, presented by Bryan Wedin.
Stabilize your toughest, chronic maintenance areas using the GEOWEB® 3D Soil Stabilization System with lower cost and higher performance.
The ATRA® Wall Keys are the most effective way to connect the GEOWEB Retaining Wall sections, ensuring the long-term success of your project.
To prevent erosion, slides, and washouts from heavy rain, railroad owners rely on the GEOWEB® Soil Stabilisation System.
GEOWEB® geocells have been used to improve and reinforce the structural performance of railway track beds worldwide for more than 40 years.
Presto Geosystems Webinar Announcement – April 26, 2022: Rail Ballast Stabilisation with the GEOWEB® 3D Geocells.
Presto Geosystems' video shows how to solve soil stability challenges in rail applications using the GEOWEB geocell system.
GEOWEB® ballast stabilisation system creates high-stiffness foundation under track for Werrington Dive Under project.
Presto Geosystems GEOWEB® Geocells for Permanent Way Applications. Creating a stable and stiffer layer under track.
Presto Geosystems offer an on demand webinar for rail ballast stabilisation solutions using the GEOWEB® 3D Geocells System.
Presto Geosystems' Port & Intermodal Yard Stabilisation with the GEOWEB® 3D Geocells webinar will take place on Tuesday, August 10, 2021.
Rail Ballast Stabilization: Presto Geosystems' GEOWEB-stabilized ballast reduces ballast movement, aggregate rotation, and rail settlement.
Presto Geosystems’ GEOWEB® 3D geocells technology has supported the rail industry for 40 years, for both new construction and repairs.
Presto GeoSystems Quick Repair of Track Subgrade & Railroad Right-of-Way. Ballast Emergency Repair. Slope Emergency Repair.
Since its installation in 2018, the GEOWEB system has exceeded project expectations and required no maintenance or repairs.
The GEOWEB® Load Support System provides base-layer & surface stabilisation for Dakar's Port Container Yard.
FREE Webinar: Port & Intermodal Yard Stabilization. Learn how the GEOWEB system extends pavement life and reduces maintenance.
Presto Geosystems GEOWEB® 3D Soil Confinement System stabilises soft subgrade and reduces cross-section for heavy loads at port facility.
Use the form opposite to get in touch with Presto Geosystems directly to discuss any requirements you might have.