Method for grouting and sealing plate-type ballastless track

Abstract

The invention discloses a method for grouting and sealing a plate-type ballastless track. The method comprises the following steps: 1) cleaning the top surface of a base plate; 2) laying a rubber hose which is laid along the length direction of a track plate on the top surface of the base plate with the width larger than that of the track plate part; and 3) laying an industrial felt and a permeable cloth. The method has the advantages that the sewing body of the industrial felt and the permeable cloth is pressed on the top surface of the base plate and the lateral surface of the track plate by unequal angle steel, while the elastic deformable rubber hose is arranged between the sewing body of the industrial felt and the permeable cloth and the top surface of the base plate, grouted mortar is sealed on the premise of ensuring the permeability, the phenomenon of grout off is prevented, and the grouting quality and the construction efficiency can be effectively improved.

Description

technical field [0001] The invention relates to a grouting auxiliary construction method for a slab ballastless track, in particular to a grouting edge sealing method for a slab ballastless track. Background technique [0002] In the grouting construction of CRTS Ⅱ slab ballastless track, the requirements for edge sealing are very high. On the one hand, the mortar must be sealed, and on the other hand, the exhaust must be smooth. There must be no large number of air bubbles between the track slab and the base plate. Cement mortar, wooden strips, angle steel and angle steel (wooden strip) + geotextile (rubber strip) are often used for edge sealing of track slabs, but the sealing effect of the above edge sealing methods is not ideal, and there are many defects; Permanent consumables, edge sealing is time-consuming and labor-intensive, and the cost is high; slurry leakage and running out often occur in the ultra-high section of the curve, and the site is seriously polluted; woo...

AI Technical Summary

Problems solved by technology

Cement mortar, wooden strips, angle steel and angle steel (wooden strip) + geotextile (rubber strip) are often used for edge sealing of track slabs, but the sealing effect of the above edge sealing methods is not ideal, and there are many defects; Permanent consumables, edge sealing is time-consuming and labor-intensive, and the cost is high; slurry leakage and running out often occur in the ultra-high section of the curve, and the site is seriously polluted; wooden strips are easily deformed when exposed to water, resulting in slurry leakage at the joints, and the surface of the exposed mortar is concave-convex. Unevenness seriously affects the appearance of concrete; angle steel is a rigid material that directly contacts the track plate and base plate, and the larger the gap, the worse the sealing effect; angle steel (wood strips) + geotextile: the geotextile and the mortar layer are glued together and are not easy to remove , and the appearance effect is poor; angle steel (wood strip) + rubber strip: the surface of the rubber strip is curved, which is easy to invade the mortar layer, causing the mortar layer and the edge of the track plate to form a staggered platform

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