Ballastless track plate prefabricating pedestal

Abstract

The invention discloses a ballastless track plate prefabricating pedestal which comprises a foundation plate, two reacting-force wall arranged at two sides of the foundation plate, a ballastless track plate template embedded part in the foundation plate, steel rails in the reacting-force walls, local pressure reinforcing embedded parts arranged at two ends of a middle reacting-force wall in the length direction, sliding rails arranged in two ends of the reacting-force walls in the length direction and adapted to the sliding of a cross beam of a tensioning jack, and a lime cushion layer arranged under the foundation plate, wherein the foundation plate is in a free plane layout and the quantity of the ballastless track plate prefabricating pedestals is not limited because the foundation plate is separated from the reacting-force walls; and since the top of the foundation plate is higher than the bottoms of the reacting-force walls, lateral deformation of the reacting-force walls serving as compression bars, the compression resistance of the reacting-force walls is improved and the quantity of the reacting-force wall construction is reduced. The ballastless track plate prefabricating pedestal is simple in structure, reasonable in design, flexible in quantity of ballastless track plate templates and plane layout, light and smart in structure, small in overall construction quantity and wide in application range.

Description

technical field [0001] The invention relates to a ballastless track production facility technology, in particular to a ballastless track slab prefabricated pedestal. Background technique [0002] At present, high-speed railways and passenger-dedicated railways generally adopt ballastless track technology. The manufacture of track slabs is the key to this system technology. It has the characteristics of high mechanization, high process standards, and excellent product quality. According to the technical requirements of ballastless track slabs, the prefabricated pedestal of track slabs is the most frequently used civil structure in the slab yard, and its design technical standards are strictly controlled, and its deformation is generally controlled at the mm level; on the other hand, it is also a large-scale railway Temporary works category, not permanent works. The layout and design of prefabricated pedestals for ballastless track slabs directly affects the quality, safety a...

AI Technical Summary

Problems solved by technology

The above design results in a large amount of reinforced concrete and other materials for the prefabricated pedestal of the ballastless track slab, high investment cost, complicated construction and long period; at the same time, because the prefabricated pedestal is a trough-shaped integral structure, it directly limits the ballastless track slab inside the two reaction walls. The number and form of template layout limit the production efficiency of ballastless track slabs and affect the selection of key parameters and investment scale of the ballastless track prefabrication field

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