Construction method for longitudinally connecting and laying ballastless track slabs

Abstract

The invention discloses a construction method for longitudinally connecting and laying ballastless track slabs and relates to the field of ballastless track slabs. The method includes the steps of 1, laying a support layer; 2, laying an isolation layer; 3, laying a reinforced mesh; 4, pre-laying track slabs; 5, connecting the track slabs; 6, pouring inter-slab resin mortar; 7, pouring self-compacting concrete. The method has the advantages that the isolation layer is laid during the construction process, the concrete is prevented from permeating from dummy joints when the self-compacting concrete is poured, and accordingly future maintenance is facilitated; the self-compacting concrete isolation layer is higher in self-strength than the traditional mortar adjusting layer, the track slabs are tightly combined, and accordingly durability of a whole ballast track is greatly improved.

Description

technical field [0001] The invention relates to the field of ballastless track slabs, in particular to a construction method for longitudinally connecting ballastless track slabs. Background technique [0002] As we all know, in the slab track structure, the ballastless track slab evenly transfers the load from the rails and fasteners to the concrete cushion, so the track slab plays a vital role in the entire railway structure. Therefore, the laying of ballastless track slabs has become an important part of the entire railway construction process. The quality of the laying and the length of the laying period directly affect the quality of the entire railway construction and the completion period. [0003] The laying process of the traditional ballastless track slab is to build and install molds on both sides of the constructed base, then lay the ballastless track slab, and pour CA mortar into the mold through the pouring port on the ballastless track slab. After the CA mor...

AI Technical Summary

Problems solved by technology

[0003] The laying process of the traditional ballastless track slab is to build and install molds on both sides of the constructed base, then lay the ballastless track slab, and pass the ballastless track slab The pouring port on the ballast track slab pours CA mortar into the mold. After the CA mortar solidifies and forms a CA mortar layer, the mold is dismantled to complete the laying of the ballastless track slab. Durability Requirements for Railways

Moreover, when the existing track slabs are connected and prestressed, the existing connection method makes the entire construction process inefficient and delays the construction period

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