Geoengineering constructions for use in railways
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United States of America Patent
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Oct 22, 2024
Grant Date -
Jun 17, 2021
app pub date -
Sep 14, 2018
filing date -
Sep 15, 2017
priority date (Note) -
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Abstract
A railway geogrid construction is suitable for use with high speed trains to mitigate the increased impact of Rayleigh waves generated at high speed and/or over soft subgrades. The construction includes a track bed which defines a track located on a track plane, a mass of particulate material such as an aggregate forming a layer located beneath the track plane, and a geogrid located in and/or below the particulate mass in a geogrid plane substantially parallel to the track plane where the average distance between the track plane and geogrid plane, measured perpendicular to both, is greater than 0.65 metres.
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