Track board and prefabricating method thereof

A technology of track slabs and rail bearing platforms, applied in the field of track slabs and their prefabrication, can solve problems such as poor tension synchronization rate, cracks on the surface of track slabs, and slow growth of concrete strength, so as to achieve durability, train running safety, and prevent The effect of track slab separation

Active Publication Date: 2016-07-20
NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU +2
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AI Technical Summary

Problems solved by technology

During the trial production process of CRTSⅢ track slab, due to improper tensioning process and quality control or concrete maintenance quality control, it often causes quality problems such as surface cracks on the appearance of the track slab, slow increase in concrete strength, and poor tension synchronization rate. Bring great difficulties to product defect repair and delivery

Method used

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  • Track board and prefabricating method thereof
  • Track board and prefabricating method thereof

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] Such as figure 1 As shown, a track slab includes a track slab main body 1 and several rail-supporting platform shoulders 2 evenly arranged on the track slab main body 1. The track slab main body 1 is a bidirectional pretensioned prestressed reinforced concrete structure, and the track slab The main body 1 is provided with a reinforced mesh sheet, and several rail platform shoulders 2 are arranged symmetrically on the track plate main body 1. A rail bearing groove is opened on the rail platform shoulder 2, and a rail platform 5 is laid in the rail groove. Two rows of U-shaped steel bars are arranged symmetrically below the slab main body 1, and the U-shaped connecti...

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Abstract

The invention discloses a track board high in strength, good in durability and safe in train travel and a prefabricating method thereof. The track board comprises a track board body and multiple track bearing table stop shoulders evenly arranged on the track board body. The track board body is of a two-way pre-tensioning method pre-stress reinforced concrete structure. A reinforcing steel bar mesh is arranged in the track board body. The multiple track bearing table stop shoulders are symmetrically arranged on the track board body. Two rows of U-shaped reinforcing steel bars are symmetrically arranged below the track board body. U-shaped connecting reinforcing steel bars and the reinforcing steel bar mesh in the track board body are combined into a whole through concrete to form a composite board structure. Therefore, a track board open joint or a self-compact concrete crack is effectively prevented from being generated, the track board is more durable in use, and the train travel is safer.

Description

technical field [0001] The invention relates to the field of railways, in particular to a track slab and a prefabrication method thereof. Background technique [0002] As we all know, with the continuous development of my country's high-speed railway construction level, ballastless track structure is widely used. In order to improve the structure type of ballastless track suitable for different operating conditions and provide strong technical support for the "going out" development strategy of my country's high-speed railways, the Ministry of Railways organized relevant units to independently develop the CRTSⅢ slab ballastless track structure. During the trial production process of CRTSⅢ track slab, due to improper tensioning process and quality control or concrete curing quality control, it often causes quality problems such as surface cracks on the appearance of the track slab, slow growth of concrete strength and poor tension synchronization rate, etc. It brings great d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B1/00
CPCE01B1/005
Inventor 孙敏钧刘继鹏汤贵海刘小东庞前凤王肃良刘树祥王宪永徐小燕安龙傅俊韩三幸刘积明李朝辉
Owner NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU
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