Grouting material used for controlling high-speed railway ballastless track bed mud spillover and technology thereof

Abstract

The invention provides a grouting material used for controlling high-speed railway ballastless track bed mud spillover and a technology thereof. The grouting material is prepared from dry raw materials and liquid raw materials, wherein the dry raw materials include a binding material component, an expansion component, an anti-dispersion component, an aggregate component, a toughening component anda condensation adjusting component; the liquid raw materials include a polymer emulsion, a water reducer, an anti-foaming agent, an air entraining agent and water; the mass ratio of the dry raw materials to the liquid raw materials is 100:(10-50). The grouting material is used for controlling the high-speed railway ballastless track bed mud spillover, and the grouting material has the advantagesthat the working performance is good, the grouting performance is good, the condensation time is controllable, the grouting material is not dispersed in case of water, the toughness is high, and the durability is high.

Description

technical field [0001] The patent of the present invention relates to the technical field of ballastless track embankment disease control technology, and specifically relates to a grouting material and its technology for the treatment of high-speed railway ballastless track embankment slurry leakage. Background technique [0002] The subgrade bed is the area in the subgrade structure that is most affected by the dynamic load of the train, climate and environment (rainwater, surface water, freeze-thaw), and is an important part of the subgrade. Slurry eruption from the subgrade bed has always been one of the main diseases of the railway subgrade. It will cause uneven subsidence of the subgrade structure, resulting in uneven deformation of the track structure, which in turn will cause serious poor state of the track surface, increase the workload of line maintenance, and affect the normal operation of the train. , seriously endangering the safety of train operation. With the ...

AI Technical Summary

Problems solved by technology

At present, there are few special grouting materials for the treatment of high-speed railway ballastless track subgrade grouting, and there are many problems in the use of existing grouting materials, such as low-viscosity epoxy resin grouting materials have a slower curing speed. Slow, not suitable for the rapid repair requirements of the skylight period; polyurethane grouting materials will foam when exposed to water, and the curing performance is unstable in humid or water-containing environments; acrylic grouting materials need to be mixed in advance before pouring, the material It is difficult to control the curing time and operable time, and it is not convenient for grouting, etc.

Moreover, the long-term effect of grouting between the base layers of ballastless track roads is poor. Generally, after one year of remediation, the grouting materials will deteriorate,...

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