Polymer grouting method for uplifting ballastless track of high-speed rail
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United States of America Patent
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Jun 2, 2015
Grant Date -
Oct 23, 2014
app pub date -
Apr 19, 2013
filing date -
Apr 19, 2013
priority date (Note) -
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Abstract
A polymer grouting method for uplifting a ballastless track of a high-speed rail includes following steps of: (1) drilling grouting holes; (2) manufacturing geo-textile bags and binding the grouting pipes up with the geo-textile bags; (3) tying up the geo-textile bags; (4) displacing the geo-textile bags; (5) grouting two-component expansive polymer materials into the geo-textile bags; (6) uplifting the track; (7) grouting two-component expansive polymer materials for filling; and (8) monitoring amount of the uplifting, wherein a vertically uplifting height is monitored in real time by a laser level, and the grouting is quit if the vertically uplifting height meets uplifting requirements.
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