Assembled steel pipe concrete double-block type sleeper

Abstract

The invention belongs to the technical field of a ballastless track, and discloses an assembled steel pipe concrete double-block type sleeper. The assembled steel pipe concrete double-block type sleeper comprises a first concrete sleeper block, a second concrete sleeper block and a plurality of supporting steel pipe concrete pillars which are processed independently; these components are separated in a transportation link and a warehousing link; after being conveyed to the construction site, the steel pipe concrete pillar is assembled with two concrete sleeper blocks together through a threading method or binding slurry on site. Through the invention, the fixing and assembling processes can be realized with high precision at the construction site rapidly, the use of the connector can be significantly reduced while the sleeper has good morpheme hold facility; particularly, the assembled steel pipe concrete double-block type sleeper has outstanding advantages of reducing technical difficulties in manufacturing, warehousing, construction and other links, improving technical efficiency and reducing cost.

Description

technical field [0001] The invention belongs to the related technical field of ballastless track, and more specifically relates to an assembled steel pipe concrete double-block sleeper. Background technique [0002] In the pillow ballastless track system, the sleeper is one of the key components. Its function is mainly to provide the positioning function of the embedded parts without fasteners and determine the geometric shape of the track during the construction of the ballastless track bed slab. In order to effectively control the width and number of cracks between the new and old concrete of the prefabricated concrete sleeper and the cast-in-place slab, and ensure that the main structure of the ballastless track meets the relevant durability requirements of the concrete structure, the traditional long concrete sleeper has been gradually optimized and designed to pass through the truss reinforcement. Connected, positioned concrete sleeper blocks. [0003] At present, conc...

AI Technical Summary

Problems solved by technology

It is obvious that both the handling and storage solutions in the prior art have relatively large limitations. For example, a set of double-block sleepers prefabricated in the factory weighs about 270kg, and it is laborious to transport to the construction site; while using angle steel or steel truss The connected double-block sleepers have a limit on the number of stacking layers in the factory, which not only increases the storage cost, but also has a lot of unusable space when stacked in the transport vehicle during transportation, and the transportation cost is high;

[0006] Finally, in the on-site construction link, as disclosed in CN101289828A, CN102268851A, etc., the construction process of the double-block ballastless track generally requires a combined track bent frame, self-propelled paving machine, multifunctional electric control spreader and mobile mechanical assembly Platforms and other devices, these large-scale supporting units have disadvantages such as various types, complex construction techniques, and the need for dedicated logistics channels, which pose a great challenge to construction difficulty and construction efficiency

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