Concrete sleepers for subway

摘要

The invention relates to an upper structure of the railway track and is intended to serve the support rails, and is the basis for the rail fastening parts, receives from the rails and bonding the operating force and transmits them to the ballast bed, while ensuring the stability of the track, and can be used in open areas subways . Concrete sleeper, made in the form of reinforced beams with variable along the length of the cross section with the inclined upper surfaces for the placement of parts of the rail bonding with blockouts for mortgages prikrepiteley or dowel parts for screws or rendered monolithic anchoring parts for fastening the rail has on the upper surface in the end portion sleepers with one side of a horizontal platform for mounting the contact rail arm and the body of the sleeper hardwired two vertically disposed du ator with holes on a horizontal platform for mounting the contact rail arm. In the first embodiment, the concrete tie horizontal platform for mounting the contact rail arm is formed by reducing the end portion of the layer of concrete railway sleepers, forming a concrete bed height is not lower than the height of end sleepers relative geometric dimensions the opposite end of the tie. In the second embodiment, the reinforced concrete sleepers horizontal platform for mounting the contact rail bracket formed by increasing the concrete layer in the end portion with respect to the geometric dimensions of the opposite end of the end sleepers. In concrete tie provided, the distance between the axes of dowel holes is not less than 100 mm, and the distance from the axis of the hole closest to the end plugs to the end of the sleeper at least 80 mm. To use a commercially available typical contact rail bracket placement of dowels operate on a horizontal platform with the nominal distance between the axes of dowels 150 mm and the distance from the bottom end to axle sleepers extreme plugs of 125-130 mm. Performing concrete tie according to the stated utility model provides setup and reliable fastening on a horizontal platform at an end of the bracket sleepers for mounting the contact rail, is used in the subway, which eliminates the need for and arrangement of additional structures for mounting the contact rail bracket tunnels underground, and especially in open its sites, making it easier and cheaper to use concrete sleepers of the proposed design.