Ballastless track plate and manufacturing method thereof

Abstract

The invention discloses a ballastless track plate and a manufacturing method thereof. The ballastless track plate comprises a concrete track plate and a coarse aggregate layer which is evenly embedded to the bottom face of the concrete track plate. The manufacturing method of the ballastless track plate comprises the steps of 1, pouring construction of reinforcing steel bars and concrete of the concrete track plate, 2, evenly spreading of coarse aggregate, 3, rolling and leveling of the coarse aggregate, 4, maintenance of the concrete track plate, and 5, storage, transportation and hoisting of the track plate. By the adoption of the outward-convex type roughness treating method that the coarse aggregate is embedded to the bottom of the plate, the contact area of the bottom face of the track plate and the filling material is increased, the coarse aggregate matching effect of the track plate-filling layer interface is improved, and the bonding performance of the track plate-filling layer interface is improved. The manufacturing method of the ballastless track plate is high in mechanical degree, rapid and efficient in interface treatment, low in equipment energy consumption, small in environmental pollution, low in construction cost and capable of being widely applied to standard production of high-speed railway track plates.

Description

technical field [0001] The invention belongs to the technical field of high-speed railway construction, and in particular relates to a ballastless track slab used for high-speed railway tracks and a manufacturing method thereof. Background technique [0002] The slab ballastless track structure is a track structure commonly used in high-speed railways at home and abroad. The safety and reliability of the track structure of the high-speed railway ballastless track during its life cycle service is very important. Usually, the slab ballastless track structure consists of rails, fasteners and backing plate systems, track slabs, filling layers, base plates, and lower supporting structures such as bridges, roadbeds or tunnels from top to bottom. [0003] At present, the longest operating mileage in my country is the CRTSII slab ballastless track structure. According to the industrial policy of China Railway Engineering Corporation and the "going out" strategy of China's high-spee...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: aiming at the adverse effect of laitance and air bubble accumulation brought by concave roughness treatment methods such as napping on the bonding of the track plate-filling layer interface, it provides a kind of convex surface at the bottom of the plate. Ballastless track slab with conventional roughness treatment and manufacturing method suitable for standardized production of the track slab

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