INTRODUCTION
The American Railway Engineering and Maintenance of Way Association (AREMA) has recognized the value of geogrid technology for trackbed stabilization by including a chapter on geogrid in its 2010 Manual for Railway Engineering. Several factors including, but not limited to, car weights, car velocity, tie type and dimensions contribute to the design of the trackbed, which would incorporate specific loading and subgrade conditions.
Nilex can provide cost effective alternatives to traditional construction methods, such that the developed design trackbed sections are in full compliance to AREMA guidelines, together with pavement sections for intermodal facilities.
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SOLUTIONS
For all classes of railways Nilex’s geogrids provide a proven solution to ballast reinforcement and optimization. Structures can fail prematurely due to the lateral displacement and weakening of the ballast fouling. The structural strength provided by Nilex’s geogrid products can allow for...
Often poor subgrade soils do not possess the strength to support trackbed construction activities and the subsequent AREMA requirements. Installed at the bottom of the sub-ballast, Nilex’s subgrade separation and stabilization geosynthetic materials help distribute imposed loads more...
MARPOLE SPUR TRACK EMERGENCY SUBGRADE REPLACEMENT
An outage on one of CP Railway’s spur lines required a rapid response, including both design and product supply. The poor quality of material in the subgrade below the railway tracks was noted as the primary cause of the failure. The solution to stabilize this location would require subgrade…
