Ballast bed at level intersection of railway and highway and preparation method thereof

Abstract

The invention relates to a ballast bed at level intersection of railway and highway and a preparation method thereof, including the base and concrete pavement, characterized in that the concrete pavement bed is formed by splicing more than one block track plate unit, wherein each block track plate unit is a rectangular track plate, comprising a reinforcing bar cage, a patterned mesh plate welded above the reinforcing bar cage, a rail bearing groove arranged in the reinforcing bar cage, a threaded spike, an insulating sleeve and a concrete layer. The preparation method comprises the following steps of: ramming and leveling the base with fine crushed stone and dry-mixed cement mortar; directly lifting the partitioned track plate unit on the base; and fixing the partitioned track plate unit on the base by concrete to form a complete highway or railway ballast bed. Compared with other types of ballast beds, the ballast beds have the advantages of strong bearing capacity, high strength, noteasy to be eroded and destroyed by water, zero maintenance and cost economy, and can adapt to the changes of line parameters, such as curve radius, super-high, sinking slope and widening, and so on.The ballast beds are stable, durable and have a service life of more than 15 years.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a railway and highway level crossing bed and a preparation method thereof. Background technique [0002] The track bed of the railway crossing is laid at the junction of the railway and the highway. It is the auxiliary equipment of the railway track level crossing to ensure the safe operation of the railway and the highway. It is also the weak link in the railway track and the focus of railway equipment management. [0003] Traditional highway and railway level crossing railways are mainly composed of crushed stone or concrete track beds arranged on the ground. Sleepers made of wood, concrete or steel are embedded in a gravel or concrete track bed and hold the rails to the sleepers. However, a big problem of this kind of track bed is the rolling of gravel track bed by running operation. That is, through the huge impact force and twisting force, the ballast bed ...

AI Technical Summary

Problems solved by technology

At the same time, frequent maintenance work on the track bed at crossings also interferes with the normal transportation order of railways and highways, and also increases the maintenance workload and cost input

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